Pet Day 2014 will be held May 3, sponsored by the College of Veterinary Medicine.
CORVALLIS, Ore. - Oregon State University will hold its 27th annual Pet Day on Saturday, May 3, when the College of Veterinary Medicine opens its doors for tours, booths, displays and a number of family-oriented events.
Pets are welcome at this always-popular event, on a leash.
Pet Day is designed as a way for the College of Veterinary Medicine to give back to the community, and help Oregon residents understand its operations and legacy of public service. It usually attracts 3,000-4,000 visitors, many who bring their pets. The child-friendly event, which will be held rain or shine, is created, organized, and staffed by students.
Vendors and volunteers from organizations will staff booths at the event and provide information on animal health and wellness, nutrition, adoption and therapy. Many also provide free samples and other resources, spanning the four-legged gamut from pet food to shelter medicine.
Among the returning activities will be dog agility demonstrations, live reptiles, a petting zoo, tours of the Veterinary Teaching Hospital, a pet costume contest, a dog frisbee show, a cat photo contest, and more. Food booths are also available.
Participants and their pets may join the Fun Run/Walk event at 9 a.m.; online preregistration for that event is requested by April 18.
Pet Day runs from 10 a.m. to 4 p.m. at Magruder Hall, located on 30th Street in Corvallis just south of Washington Way, and adjacent to the athletic department’s Truax Indoor Center. Admittance and most activities are free, but there is a small charge for a few of the events.
More detailed information on the various events and registration for the fun run/walk is available online at http://vetmed.oregonstate.edu/pet-day
Pet Day is sponsored by the College of Veterinary Medicine, and supported by Banfield Pet Hospital, Hill’s Pet Nutrition, Zoetis, Nestle Purina Pet Care Co., the Oregon Animal Health Foundation and the Student Chapter of the American Veterinary Medical Association.College of Veterinary Medicine Media Contact: David Stauth Source:
Linda Hogan, a Chickasaw novelist, essayist, and environmentalist, will read from her work Friday, April 18, beginning at 7:30 p.m. in the rotunda of the Valley Library.
CORVALLIS, Ore. – Linda Hogan, a Chickasaw novelist, essayist, and environmentalist, will read from her work Friday, April 18, beginning at 7:30 p.m. in the rotunda of the Valley Library at Oregon State University.
A reception and book signing will follow the reading, which is free and open to the public.
Hogan is author of seven poetry collections including “Seeing Through the Sun” (1985), which won the American Book Award from the Before Columbus Foundation, and “The Book of Medicines,” a National Book Critics Circle Award finalist (1993).
Her collections of prose reflect Hogan’s interests in the environment and Native American culture. Her books include the essay collection “Dwellings: A Spiritual History of the Living World” (1995), “The Woman Who Watches Over the World: A Native Memoir” (2001), and, with Brenda Peterson, “Sighting: The Gray Whales’ Mysterious Journey” (2002).
Hogan’s novels include “Mean Spirit” (1990), “Solar Storms” (1995), “Power” (1998), and “People of the Whale: A Novel” (2008).
Active as an educator and speaker, Hogan taught at the University of Colorado and at the Indigenous Education Institute.
In advance of her Corvallis visit, Hogan will be writer-in-residence for the Long-Term Ecological Reflections program at the H.J. Andrews Experimental Forest, which is co-sponsored by the Spring Creek Project for Ideas, Nature, and the Written Word and the U.S. Forest Service.
This event is part of the OSU Visiting Writer Series., which brings nationally known writers to Oregon State University. The program is made possible by support from The Valley Library, OSU Press, the OSU School of Writing, Literature, and Film, the College of Liberal Arts, Kathy Brisker and Tim Steele, and Grass Roots Books and Music.
For more information, call 541-737-6198 or visit the Spring Creek website at http://springcreek.oregonstate.edu/College of Liberal Arts Source:
Charles Goodrich, 541-737-6198
Oregon State University will host an “Everybody Reads” program in April and May celebrating the work of award-winning American writer Tobias Wolff, the 2014 recipient of OSU's Stone Award for Lifetime Literary Achievement.
CORVALLIS, Ore. – Oregon State University will host an “Everybody Reads” program in April and May celebrating the work of award-winning American writer Tobias Wolff, who will visit Portland and the OSU campus later this spring.
The “Everybody Reads” campaign is designed to engage the community with Wolff’s writing in advance of his visit. The program is sponsored by the Master of Fine Arts Program in Creative Writing in OSU’s College of Liberal Arts. Students in the MFA program will lead readings and discussions about Wolff’s work, as well as Wolff-inspired writing workshops.
The program will culminate with a free public reading by Wolff, who will visit Oregon May 21-22 to receive OSU’s Stone Award for Lifetime Literary Achievement.
On May 21, Wolff will be honored at a ticketed event at the Portland Art Museum. The event begins at 7:30 p.m. and tickets are available at the museum’s ticket office or online: http://bit.ly/1hJXdVh. On May 22, Wolff will appear at a free public reading, lecture and book signing at OSU. The reading begins at 7:30 p.m. in the CH2M HILL Alumni Center, 725 S.W. 26th St., Corvallis.
Wolff is best known for his work in two genres: the short story and the memoir. His first short story collection, “In the Garden of the North American Martyrs,” was published in 1981. Wolff chronicled his early life in two memoirs, “In Pharaoh’s Army” (1994) and “This Boy’s Life” (1989).
The “Everybody Reads” events, all free and open to the public, are:
- 7 p.m. Wednesday, April 16, public book club discussion of “Old School,” Corvallis-Benton County Public Library, 645 N.W. Monroe Ave.
- 6:30 p.m. Tuesday, May 13, public reading group, “This Boy’s Life,” Grass Roots Books & Music, 227 S.W. Second St.
- 6 p.m. Tuesday, May 13, young adult creative writing club, selected short stories; Corvallis-Benton County Public Library.
- 2 p.m. Saturday, May 17, Tobias Wolff discussion group, led by OSU creative writing Professor Keith Scribner, Corvallis-Benton County Public Library.
The MFA students also will visit classes at OSU, Linn-Benton Community College, Corvallis High School, Harding Alternative High School and Crescent Valley High School.
The biennial Stone Award recognizes a major American author who has created a body of critically-acclaimed work and has mentored young writers. Wolff is the second recipient; the first was Joyce Carol Oates in 2012.
The award was established in 2011 by Patrick and Vicki Stone to spotlight OSU’s Master of Fine Arts Program in Creative Writing. The honorarium for the award is $20,000, making it one of the most substantial awards for lifetime literary achievement offered by any university in the country.College of Liberal Arts Media Contact: Michelle Klampe Source:
Rachel Ratner, 516-652-5817; firstname.lastname@example.orgMultimedia Downloads Multimedia:
Oregon State University will host its 59th annual Luau on Saturday, April 19, at Gill Coliseum.
CORVALLIS, Ore. – Oregon State University will host its 59th annual Luau on Saturday, April 19, at Gill Coliseum – an event that includes an authentic Hawaiian dinner, a show, and a concert by Eden Roc.
The luau, which has the theme, “Onboard to Paradise,” is presented by OSU’s Hui O Hawaii with the Polynesian Cultural Club. Doors open at 4:30 p.m. and dinner begins at 5 p.m. The show begins at 6 p.m.; the concert at 8:30 p.m.
Advance tickets are priced at $15 for the dinner, show and concert ($20 at the door); or $10 for the show and concert. Children under age 2 are free.
The dinner features Kalua pig, shoyu chicken, lomi salmon, rice, haupia, tossed salad, tofu stir fry, poi and fruit punch.
Tickets are available for purchase online here: https://secure.touchnet.net/C20159_ustores/web/store_main.jsp?STOREID=36Generic OSU Media Contact: Theresa Hogue Source:
Mandilyn Suzuki, email@example.com
Oregon State University researchers have proven the effectiveness of two organic alternatives for controlling a disease that can wipe out entire apple and pear orchards.
CORVALLIS, Ore. – Oregon State University researchers have proven the effectiveness of two organic alternatives for controlling a disease that can wipe out entire apple and pear orchards.
Scientists found that spraying a yeast-based product and new water-soluble copper products at the beginning of the growing season provided protection from the bacterial disease.
The findings come as organic growers prepare for a probable ban on two antibiotics previously allowed by the National Organics Standards Board. At the end of this year's growing season, oxytetracycline and potentially streptomycin will no longer be permitted in organic orchards for fire blight, a serious bacterial disease that can kill trees.
Spread by bees and rain, fire blight remains dormant in trees over winter and infects flowers in spring. Once infected, growers can only stop the disease by cutting out infections, which can prove fatal.
"In some cases, fire blight can kill a whole orchard in a short period of time," said OSU plant pathologist Ken Johnson.
Organic pome fruit growers are encouraged to test new approaches this year before antibiotics are no longer available as backup choices, added Johnson.
In OSU trials, researchers tested the commercially available Blossom Protect, a yeast that clings to apple blossoms and pears and prevents colonization by fire blight bacteria.
Blossom Protect was developed in Europe and registered by the Environmental Protection Agency in 2012. In apples, it was 90 percent effective when sprayed after lime sulfur to reduce crop load.
Copper has been used for fire blight for almost a century, but heavy applications can be toxic to trees or create rough blemishes on fruit, known as russeting – which downgrades the value. New water-soluble copper products, such as Cueva and Previsto, contain low concentrations of the metal, which lessens its negative effects while still combating fire blight, said Johnson.
"Whereas growers used to be scared to spray copper, the solubilized versions are safer than coppers from yesteryear," said Johnson, a professor in OSU's College of Agricultural Sciences.
Since the National Organic Program began in 2002, the use of antibiotics was allowed to control fire blight on apples and pears because no effective alternative was available at the time.
The research was funded by the U.S. Department of Agriculture's National Institute of Food and Agriculture.
Tim Smith from Washington State University and Rachel Elkins from University of California Cooperative Extension also contributed research. The research team prepared a webinar on non-antibiotic treatment of fire blight, which is at: http://bit.ly/FireBlightWebinar.College of Agricultural Sciences Media Contact: Daniel Robison Source:
Ken Johnson, 541-737-5249Multimedia Downloads Multimedia:
The late Oregon Gov. Tom McCall’s pioneering fight to clean up the state’s waterways and to control development in the late 1960s still resonates today.
CORVALLIS, Ore. – The late Oregon Gov. Tom McCall’s pioneering fight to clean up the state’s waterways and to control development in the late 1960s still resonates today. At the Nov. 11 Corvallis Science Pub, Oregon State University historian Bill Robbins will discuss the significance of McCall’s leadership.
Robbins will also show McCall’s famous documentary, Pollution in Paradise, which aired on KGW-TV in 1962.
The Science Pub presentation begins at 6 p.m. in the Old World Deli located at 341 S.W. Second St. in Corvallis. It is free and open to the public.
“With an aristocratic, East Coast family background and a large-sized ego, McCall proved himself a man of the people, one who inspired deep affection for his adopted and beloved state,” Robbins said. “In a significantly less-polarized political environment, he worked across party lines to achieve significant policy objectives that we live with to the present day.”
Robbins is an emeritus distinguished professor of history at Oregon State and the author of 12 books, including Landscapes of Promise: The Oregon Story, 1800-1940 (1997); Landscapes of Conflict: The Oregon Story, 1940-2000 (2005); and Oregon: This Storied Land (2006).
-30-Generic OSU Media Contact: Nick Houtman Source:
Bill Robbins, 541-602-3867
CORVALLIS, Ore. – High school students will explore college and career opportunities in a new 4-H program coordinated by the Oregon State University Extension Service.
The 4-H Outreach Leadership Institute aims to prepare high school students from diverse cultural backgrounds to attend college and pursue a variety of career paths, according to organizer Mario Magaña, an outreach specialist for OSU Extension 4-H. Magaña hopes the leadership institute will reach Latinos, Native Americans, Asians, Pacific Islanders and African-Americans, as well as rural Caucasians who would be first-generation college students.
It's set for Nov. 15-17 at OSU in Corvallis, with additional multi-day sessions in March of 2014 at OSU and May of 2014 at the Oregon 4-H Conference and Education Center in Salem. The leadership institute is an expansion of the former 4-H Camp Counselor Trainings and the replacement of the high school International Summer Camp.
"I really believe that high school is the time to expose kids to college information and leadership activities," Magaña said. "The leadership institute will help them gain the knowledge, confidence and skills needed to apply for competitive scholarships and to apply for top universities. If kids start attending the leadership institute during their freshman year, we're going to mentor them three times a year for every year of their high school careers."
On the OSU campus in Corvallis, students will get hands-on practice from several Oregon universities on how to file a Free Application for Federal Student Aid, fill out a college application, write a college admissions essay and compose a personal biography. They will learn about careers from OSU student and faculty mentors in engineering, forestry, veterinary medicine, health and nutrition, fisheries and wildlife, solar energy, wave energy, science and robotics.
The session in May in Salem will train students to become camp counselors for 4-H International Summer Camps in 2014. It will offer students activities to develop leadership skills. Activities will include campfire skits, games, songs and role-plays. Workshops will teach students about a camp counselor's roles and responsibilities, as well as camp rules and regulations. Students will also learn about the physical and educational activities that will take place during summer camps, ranging from swimming to archery to building Lego robotics, as well as other workshops related to science, engineering and technology.
Jessica Casas of Salem participated in 4-H International Summer Camps as a camper and counselor. She is a sophomore at OSU majoring in sociology and hopes to earn her master's degree in public policy.
"I did see myself in college, but I did not know how I was going to get there,” Casas said. “I got to know about the resources available when I attended 4-H International Summer Camps. After I got to meet Latino and Latina students attending college and getting financial aid, I talked to my mom and knew I was going to college."
Now Casas is attending OSU on a Gates Millennium Scholarship. Her ultimate career goal is to represent Latinos in government-level legislature, with the hope of creating positive change in public policy for the Latino community. She is already on the path to pursuing that dream. At the leadership institute, Casas will coach students on applying for the competitive Gates Millennium Scholarship, which includes writing eight essays.
Applications to the leadership institute are accepted on a first-come, first-served basis. High school students in grades 9-12 from anywhere in Oregon are encouraged to apply. There is no cost to attend but an application is required. Students can apply at http://bit.ly/Outreach_Institute.
The Oregon Outreach project, which oversees the leadership institute, is an initiative of the OSU Extension 4-H Youth Development Program. Oregon Outreach aims to support and expand the quality and quantity of community-based, culturally relevant educational programs for underserved populations. For more information, go to http://oregon.4h.oregonstate.edu/oregonoutreach.
4-H is the largest out-of-school youth development program nationwide. The OSU Extension Service administrates Oregon's 4-H program within OSU's College of Public Health and Human Sciences. 4-H reached nearly 117,000 youth in kindergarten through 12th grade via a network of 8,534 volunteers in 2012. Activities focus on areas like healthy living, civic engagement, science and animal care. Learn more about 4-H at: http://oregon.4h.oregonstate.edu.Extension Service Media Contact: Denise Ruttan Source:
Mario Magaña, 541-737-0925Multimedia Downloads Multimedia:
The Northwest is facing increased risks from the decline of forest health, earlier snowmelt, and issues facing the coastal region, according to a new climate assessment report.
CORVALLIS, Ore. – The Northwest is facing increased risks from the decline of forest health, earlier snowmelt leading to low summer stream flows, and an array of issues facing the coastal region, according to a new climate assessment report.
Written by a team of scientists coordinated by the Oregon Climate Change Research Institute (OCCRI) at Oregon State University, the report is the first regional climate assessment released since 1999. Both the 1999 report and the 2013 version were produced as part of the U.S. National Climate Assessment; both Washington and Oregon produced state-level reports in 2009 and 2010.
OSU’s Philip Mote, director of the institute and one of three editors of the 270-page report (as well as the 1999 report), said the document incorporates a lot of new science as well as some additional dimensions – including the impact of climate change on human health and tribal issues. A summary of the report is available online at: http://occri.net/reports
Amy Snover, director of the Climate Impacts Group at the University of Washington, said there are a number of issues facing the Northwest as a result of climate change.
“As we looked across both economic and ecological dimensions, the three that stood out were less snow, more wildfires and challenges to the coastal environment and infrastructure,” said Snover, who is one of the editors on the report.
The report outlines how these three issues are affected by climate change.
“Studies are showing that snowmelt is occurring earlier and earlier and that is leading to a decline in stream flows in summer,” Mote said. “Northwest forests are facing a huge increase in wildfires, disease and other disturbances that are both direct and indirect results of climate change. And coastal issues are mounting and varied, from sea level rise and inundation, to ocean acidification. Increased wave heights in recent decades also threaten coastal dwellings, roads and other infrastructure.”
OCCRI’s Meghan Dalton, lead editor on the report, notes that 2,800 miles of coastal roads are in the 100-year floodplain and some highways may face inundation with just two feet of sea level rise. Sea levels are expected to rise as much as 56 inches, or nearly five feet, by the year 2100.
Earlier snowmelt is a significant concern in the Northwest, where reservoir systems are utilized to maximize water storage. But, Dalton said, the Columbia River basin has a storage capacity that is smaller than its annual flow volume and is “ill-equipped to handle the projected shift to earlier snowmelt…and will likely be forced to pass much of these earlier flows out of the system.”
The earlier peak stream flow may significantly reduce summer hydroelectric power production, and slightly increase winter power production.
The report was funded by the National Oceanic and Atmospheric Administration, through the Oregon Legislature’s support of the Oregon Climate Change Research Institute at OSU, and by in-kind contributions from the authors’ institutions.
Mote said new research has led to improved climate models, which suggest that the Northwest will warm by a range of three to 14 degrees (Fahrenheit) by the year 2100. “The lower range will only be possible if greenhouse gas emissions are significantly reduced.” In contrast, the Northwest warmed by 1.3 degrees from the period of 1895 to 2011.
Future precipitation is harder to project, the report notes, with models forecasting a range from a 10 percent decrease to an 18 percent increase by 2100. Most models do suggest that more precipitation will fall as rain and earlier snowmelt will change river flow patterns.
That could be an issue for agriculture in the future as the “Northwest’s diverse crops depend on adequate water supplies and temperature ranges, which are projected to change during the 21st century,” the report notes. Pinpointing the impacts on agriculture will be difficult, said Sanford Eigenbrode of the University of Idaho, another co-author.
“As carbon dioxide levels rise, yields will increase for some plants, and more rainfall in winter could mean wetter soils in the spring, benefitting some crops,” Eigenbrode pointed out. “Those same conditions could adversely affect other crops. It is very difficult to say how changing climate will affect agriculture overall in the Northwest, but we can say that the availability of summer water will be a concern.”
Mote said there may be additional variables affecting agriculture, such what impacts the changing climate has on pests, diseases and invasive species.
“However, the agricultural sector is resilient and can respond more quickly to new conditions than some other sectors like forestry, where it takes 40 years or longer for trees to reach a harvestable age,” noted Mote, who is a professor in OSU’s College of Earth, Ocean, and Atmospheric Sciences.
The Northwest has not to date been vulnerable to many climate-related health risks, the report notes, but impacts of climate change in the future are more likely to be negative than positive. Concerns include increased morbidity and mortality from heat-related illness, air pollution and allergenic disease, and the emergence of infectious diseases.
“In Oregon, one study showed that each 10-degree (F) increase in daily maximum temperature was associated with a nearly three-fold increase of heat-related illness,” said Jeff Bethel, an assistant professor in the College of Public Health and Human Sciences at OSU and one of the co-authors of the report. “The threshold for triggering heat-related illness – especially among the elderly – isn’t much.”
Northwest tribes may face a greater impact from climate change because of their reliance on natural resources. Fish, shellfish, game and plant species could be adversely affected by a warming climate, resulting in a multitude of impacts.
“When tribes ceded their lands and were restricted to small areas, it resulted in a loss of access to many species that lived there,” said Kathy Lynn, coordinator of the Tribal Climate Change Project at the University of Oregon and a co-author of the report. “Climate change may further reduce the abundance of resources. That carries a profound cultural significance far beyond what we can document from an economic standpoint.”
Snover said that the climate changes projected for the coming decades mean that many of the assumptions “inherent in decisions, infrastructure and policies – where to build, what to grow where, and how to manage variable water sources to meet multiple needs – will become increasingly incorrect.
“Whether the ultimate consequences of the climate impacts outlined in this report are severe or mild depends in part on how well we prepare our communities, economies and natural systems for the changes we know are coming,” Snover said.
Other lead co-authors on the report are Rick Raymondi, Idaho Department of Water Resources; W. Spencer Reeder, Cascadia Consulting Group; Patty Glick, National Wildlife Federation; Susan Capalbo, OSU; and Jeremy Littell, U.S. Geological Survey.College of Earth, Ocean, and Atmospheric Sciences Media Contact: Mark Floyd Source:
OSU biochemists have unlocked some of the genetic constraints on a common fungus, in work that may lead to important new antibiotics.
CORVALLIS, Ore. – Researchers at Oregon State University have discovered that one gene in a common fungus acts as a master regulator, and deleting it has opened access to a wealth of new compounds that have never before been studied – with the potential to identify new antibiotics.
The finding was announced today in the journal PLOS Genetics, in research supported by the National Institutes of Health and the American Cancer Society.
Scientists succeeded in flipping a genetic switch that had silenced more than 2,000 genes in this fungus, the cereal pathogen Fusarium graminearum. Until now this had kept it from producing novel compounds that may have useful properties, particularly for use in medicine but also perhaps in agriculture, industry, or biofuel production.
“About a third of the genome of many fungi has always been silent in the laboratory,” said Michael Freitag, an associate professor of biochemistry and biophysics in the OSU College of Science. “Many fungi have antibacterial properties. It was no accident that penicillin was discovered from a fungus, and the genes for these compounds are usually in the silent regions of genomes.
“What we haven’t been able to do is turn on more of the genome of these fungi, see the full range of compounds that could be produced by expression of their genes,” he said. “Our finding should open the door to the study of dozens of new compounds, and we’ll probably see some biochemistry we’ve never seen before.”
In the past, the search for new antibiotics was usually done by changing the environment in which a fungus or other life form grew, and see if those changes generated the formation of a compound with antibiotic properties.
“The problem is, with the approaches of the past we’ve already found most of the low-hanging fruit, and that’s why we’ve had to search in places like deep sea vents or corals to find anything new,” Freitag said. “With traditional approaches there’s not that much left to be discovered. But now that we can change the genome-wide expression of fungi, we may see a whole new range of compounds we didn’t even know existed.”
The gene that was deleted in this case regulates the methylation of histones, the proteins around which DNA is wound, Freitag said. Creating a mutant without this gene allowed new expression, or overexpression of about 25 percent of the genome of this fungus, and the formation of many “secondary metabolites,” the researchers found.
The gene that was deleted, kmt6, encodes a master regulator that affects the expression of hundreds of genetic pathways, researchers say. It’s been conserved through millions of years, in life forms as diverse as plants, fungi, fruit flies and humans.
The discovery of new antibiotics is of increasing importance, researchers say, as bacteria, parasites and fungi are becoming increasingly resistant to older drugs.
“Our studies will open the door to future precise ‘epigenetic engineering’ of gene clusters that generate bioactive compounds, e.g. putative mycotoxins, antibiotics and industrial feedstocks,” the researchers wrote in the conclusion of their report.College of Science Media Contact: David Stauth Source:
Michael Freitag, 541-737-4845Multimedia Downloads Multimedia:
Don Walsh, a pioneering oceanographer famous for his 1960 dive to the deepest part of the ocean, will visit OSU's Hatfield Marine Science Center on Tuesday, Nov. 12.
NEWPORT, Ore. – Don Walsh, a pioneering oceanographer famous for his 1960 dive to the deepest part of the ocean, will visit Newport on Tuesday, Nov. 12.
Walsh will give a free public lecture at Oregon State University’s Hatfield Marine Science Center. His presentation, “Lunch on Board the Titanic: Two Miles Deep in the Atlantic,” begins at 6:30 p.m. In his talk, Walsh will share his experience diving in a submersible down to the Titanic and other adventures from his career of more than 40 years.
A retired captain from the U.S. Navy, Walsh went on to enjoy a lengthy career as an oceanographer and ocean engineer who explored the deep oceans and polar regions. He has commanded submarines as a naval officer and deep-sea submersibles as a researcher.
In 1960, Walsh and Swiss oceanographer Jacques Piccard boarded the bathyscaphe Trieste and descended to the floor of the Mariana Trench in the northern Pacific Ocean – a depth of more than 35,000 feet, or nearly seven miles. It took five hours to reach the seafloor, and at 30,000 feet they heard a loud crack. Upon reaching the bottom, they discovered cracks in the window, and quickly began ascending.
The historic dive received worldwide attention. It also remained a world record dive for 52 years until James Cameron piloted his Deepsea Challenger to the same place in 2012.
Walsh, who has a courtesy appointment in OSU’s College of Earth, Ocean, and Atmospheric Sciences, will also visit schools in Newport during the week and give a seminar at the Hatfield Marine Science Center. That talk, intended for a research audience, is titled “Going the Last Seven Miles – Looking Backwards at the Future.” It begins at 3:30 p.m. on Nov. 12 in the Hennings Auditorium.Hatfield Marine Science Center Media Contact: Mark Floyd Source:
Maryann Bozza, 541-867-0234; firstname.lastname@example.orgMultimedia Downloads Multimedia:
A former fugitive who spent 23 years on the run from the FBI is returning to Corvallis to talk for the first time about her experiences.
CORVALLIS, Ore. – A former fugitive who spent 23 years on the run from the FBI is returning to Corvallis to talk for the first time about her experiences as a student activist, a wanted criminal, and a woman who now embraces peace activism rather than violent revolution.
Katherine Ann Power has written a book titled “Surrender,” about her life on the run. She will speak on that topic at Oregon State University at noon on Thursday, Oct. 31, in Memorial Union Room 206.
In 1970, while a student at Brandeis University, Power was involved in a bank heist. She and four other activists were hoping to use the money to buy explosives that would help them procure weapons to arm the Black Panthers. During the robbery, one of the participants shot and killed a Boston police officer responding to the crime. Power, who was the getaway driver, escaped capture and disappeared for more than two decades.
She ended up in Lebanon, Ore., working in Corvallis and Albany, as well as teaching cooking classes at Linn-Benton Community College. She took on the name of Alice Metzinger, raised a son and married a local man.
But in 1993, Power decided she had lived in hiding long enough. She negotiated terms of surrender and pled guilty to two counts of armed robbery and manslaughter. She was released from prison in 1999, and returned to Oregon. She completed a master’s degree at Oregon State University in interdisciplinary studies, and taught English as an instructor. She later moved to Boston.
Part of Power’s sentence restricted her from speaking and publishing about her experiences until her 20-year probation period ended in 2013.
The talk, titled “Surrender: Gorilla to Grandmother,” is free and open to the public. It is sponsored by the OSU Peace Studies Program, the School of History, Philosophy and Religion and the Annares Project.College of Liberal Arts Media Contact: Angela Yeager Source:
Joseph Orosco, 541-737-4335
Mary Phillips has been named director for the Office of Research Development, a new unit within the Research Office, effective Dec. 1.
CORVALLIS, Ore. – Mary Phillips has been named director for the Office of Research Development, a new unit within the Research Office, effective Dec. 1.
Phillips is associate director for the Office for Commercialization and Corporate Development, where she oversees the management of intellectual property and licensing of OSU inventions. In her new role, Phillips will work with faculty and academic units to identify and pursue major funding opportunities, including federal, non-profit and corporate sources.
The creation of the Office for Research Development is a proactive step by the Research Office that addresses the challenge and goals articulated in the OSU research agenda by providing strategic institutional support for successful proposal development, Phillips said.
"What excites me about this position is the role I will play in developing new approaches that will enable our faculty to be highly competitive in securing grant funding in these times of dwindling federal funding and sequestration," Phillips noted. "This in itself is a grand challenge."
Vice President for Research Rick Spinrad said there is a lot of untapped potential for building OSU’s capacity and reputation.
“By establishing an Office of Research Development, we have created the structure to engage in strategic positioning of our research enterprise, long before specific solicitations for research are issued,” Spinrad said. “As part of OSU’s research agenda we are striving to diversify our sponsorship base. We’ve done this very successfully with our industry engagement (40 percent increase in two years), now we have the staff and organization to start doing the same with other sponsors, notably federal agencies.”
Spinrad anticipates that OSU will dramatically increase the number of federal agencies supporting its research, and that OSU will take a much more forward-leaning posture in driving the research interests of traditional sponsors.
“In addition, Mary’s role will allow us to be much more effective in strengthening our proposal efforts - for example by being more strategic in how we address ‘broader impacts,’” Spinrad said. “This is particularly important as general decreases in federal funding for research make for an even more competitive environment.”
Phillips will be supported by an advisory group that will consist of senior faculty representing each of the divisions within the university.
Prior to joining OSU in 2006, Phillips began her career in university technology transfer in 2001 at Oregon Health and Science University. She has a Ph.D. in physical chemistry from the University of London’s Imperial College of Science, Technology and Medicine and gained postdoctoral experience in the areas of laser spectroscopy and molecular biology at the University of Oregon.Generic OSU Media Contact: Theresa Hogue Source:
A new Cascadia Lifelines Program led by OSU and involving private industry will expedite the research needed to address the subduction zone earthquake looming in Oregon's future.
CORVALLIS, Ore. – Oregon State University and eight partners from government and private industry this month began studies for the Cascadia Lifelines Program, a research initiative to help improve critical infrastructure performance during an anticipated major earthquake on the Cascadia subduction zone.
The program, coordinated by the OSU School of Civil and Construction Engineering, will immediately begin five research projects with $1.5 million contributed by the partners. Recent work such as the Oregon Resilience Plan has helped to define the potential problems, experts say, and this new initiative will begin to address them in work that may take 50 years or more to implement.
Looming in Oregon’s future is a massive earthquake of about magnitude 9.0, which could significantly damage Pacific Northwest roads, bridges, buildings, sewers, gas and water lines, electrical system and much more.
“Compared to the level of earthquake preparedness even in California and Washington, it’s clear that Oregon is bringing up the rear,” said Scott Ashford, director of the new program. He is the Kearney Professor of Engineering in the OSU College of Engineering, and an international expert who has studied the impact of subduction zone earthquakes in much of the Pacific Rim – including Japan’s major disaster of March, 2011.
“Most of Oregon’s buildings, roads, bridges and infrastructure were built at a time when it was believed the state was not subject to major earthquakes,” Ashford said. “Because of that we’re going to face serious levels of destruction. But with programs like this and the commitment of our partners, there’s a great deal we can do to proactively prepare for this disaster, and get our lifelines back up and running after the event.”
Those “lifelines,” Ashford said, are the key not just to saving lives and minimizing damage, but aiding in recovery of the region following a disaster that scientists say is a near certainty. The list of participating partners reflects agencies and companies that understand the challenges they will face, Ashford said.
The partners include the Oregon Department of Transportation, Portland General Electric, Northwest Natural Gas, the Bonneville Power Administration, Port of Portland, Portland Water Bureau, Eugene Water and Electric Board, and Tualatin Valley Water District.
“When I studied areas that had been hard-hit by earthquakes in Chile, New Zealand and Japan, it became apparent that money spent to prepare for and minimize damage from the earthquake was hugely cost-effective,” Ashford said. “One utility company in New Zealand said they saved about $10 for every $1 they had spent in retrofitting and rebuilding their infrastructure.
“This impressed upon me that we do not have to just wait for the earthquake to happen,” he said. “There’s a lot we can do to prepare for it right now that will make a difference. And we have the expertise right here at OSU – in engineering, business, earth sciences, health – to get these programs up and running.”
The initial subjects OSU researchers will focus on in the new program include:
- Studies of soil liquefaction, which can greatly reduce the strength of soils and lead to road, bridge, building and other critical infrastructure facility failure;
- Cost effective improvements that could be done to existing and older infrastructure;
- Evacuation routes for Oregonians to use following a major earthquake;
- Tools to plan for hazards and anticipate risks;
- Where and how earthquakes could trigger landslides in Oregon.
Ashford said the consortium will seek additional federal support for the needed research, and also more partners both in government and private industry.
OSU will also continue its collaboration with PEER, the Pacific Earthquake Engineering Research Center, which includes work by the leading academic institutions in this field on the West Coast. The Cascadia Lifelines Program will add an emphasis on subduction zone earthquakes, which can behave quite differently and produce shaking that lasts for minutes, instead of the type of strike-slip quakes most common in California that last for tens of seconds. And the utility lifelines work will be focused on the specific challenges facing Oregon.
Aside from some of the infrastructure not being built to withstand major earthquakes, Oregon and the Willamette Valley may face particular risks from liquefaction, in which soil can develop the consistency of “pea soup” and lose much of its strength. Liquefaction helped cause much of the damage in Japan, which has still not recovered from the destruction more than two years after the event.College of Engineering Media Contact: David Stauth Source:
Scott Ashford, 541-737-4934Multimedia Downloads Multimedia:
Video of liquefaction in Japan:
CORVALLIS, Ore. – If you call yourself a "gardening geek" or simply want to know more about the natural world, now's the time to sign up for the Oregon State University Extension Service's annual Master Gardener training.
But don't be intimidated by the "master" part of a title that describes a dedicated volunteer force, said Gail Langellotto, the statewide coordinator of the Master Gardener program.
"The class is meant to be accessible to people from across a variety of educational backgrounds who have a passion for learning more about horticulture," Langellotto said. "The 'Master' title is used to designate volunteers for Oregon State University Extension Service, such as Master Food Preservers. More than anything, Master Gardeners have a good understanding of how to use research-based information to help people plan, plant and maintain sustainable gardens."
Master Gardeners are trained by the OSU Extension Service and offer reliable, relevant and reachable information and educational opportunities. They answer questions at OSU Extension offices, farmers markets and community events. They create and manage demonstration gardens, school gardens and community gardens. They also coordinate gardens at correctional facilities, health care centers and libraries. In addition, they host garden tours, workshops and classes.
A total of 4,160 Master Gardeners donated 194,898 hours of their time across Oregon in 2012, according to Langellotto.
The OSU Extension Service offers its Master Gardener training in 30 of Oregon's 36 counties. For a list of trainings and local coordinators, go to http://bit.ly/OSU_MGLocations. Registration deadlines vary by county.
Master Gardener training typically kicks off in January, though starting dates vary by county. Trainees take a series of classes from local and OSU experts on subjects ranging from botany basics to pest identification.
Master Gardeners volunteer their time so that they can teach others in their community about sustainable gardening. Master Gardener training fees vary by county and reflect local costs. OSU Extension requires a basic application. Those who want to work with children as part of their volunteer service must also undergo a background history check. Candidates must explain in a statement their reasons for volunteering and describe their volunteer history.
For those who work during the day, Extension offices in Lane County, central Oregon and Hood River offer night and Saturday classes. OSU's Professional and Noncredit Education unit offers an online version of the training at https://pne.oregonstate.edu/catalog/master-gardener-online.
Sign up to receive more information by e-mail about Master Gardener training at http://extension.oregonstate.edu/mg/signup. OSU Extension also offers the following publications on the topic: "An Introduction to Being a Master Gardener Volunteer" at http://bit.ly/Intro_MG and a brochure at http://bit.ly/MG_Brochure.Extension Service Media Contact: Denise Ruttan Source:
Gail Langellotto, 541-737-5175Multimedia Downloads Multimedia:
A new review suggests that excess omega-3 fatty acids could have unintended health consequences, and that evidence-based dietary standards need to be established.
CORVALLIS, Ore. – A new review suggests that omega-3 fatty acids taken in excess could have unintended health consequences in certain situations, and that dietary standards based on the best available evidence need to be established.
“What looked like a slam dunk a few years ago may not be as clear cut as we thought,” said Norman Hord, associate professor in OSU’s College of Public Health and Human Sciences and a coauthor on the paper.
“We are seeing the potential for negative effects at really high levels of omega-3 fatty acid consumption. Because we lack valid biomarkers for exposure and knowledge of who might be at risk if consuming excessive amounts, it isn’t possible to determine an upper limit at this time.”
Previous research led by Michigan State University’s Jenifer Fenton and her collaborators found that feeding mice large amounts of dietary omega-3 fatty acids led to increased risk of colitis and immune alteration. Those results were published in Cancer Research in 2010.
As a follow-up, in the current issue of the journal Prostaglandins, Leukotrienes & Essential Fatty Acids, Fenton and her co-authors, including Hord, reviewed the literature and discuss the potential adverse health outcomes that could result from excess consumption of omega-3 fatty acids.
Studies have shown that omega-3s, also known as long chain polyunsaturated fatty acids (LCPUFAs), are associated with lower risk of sudden cardiac death and other cardiovascular disease outcomes.
“We were inspired to review the literature based on our findings after recent publications showed increased risk of advanced prostate cancer and atrial fibrillation in those with high blood levels of LCPUFAs,” Fenton said.
Omega-3 fatty acids have anti-inflammatory properties, which is one of the reasons they can be beneficial to heart health and inflammatory issues. However, the researchers said excess amounts of omega-3 fatty acids can alter immune function sometimes in ways that may lead to a dysfunctional immune response to a viral or bacterial infection.
“The dysfunctional immune response to excessive omega-3 fatty acid consumption can affect the body’s ability to fight microbial pathogens, like bacteria,” Hord said.
Generally, the researchers point out that the amounts of fish oil used in most studies are typically above what one could consume from foods or usual dosage of a dietary supplement. However, an increasing amount of products, such as eggs, bread, butters, oils and orange juice, are being “fortified” with omega-3s. Hord said this fortified food, coupled with fish oil supplement use, increases the potential for consuming these high levels.
“Overall, we support the dietary recommendations from the American Heart Association to eat fish, particularly fatty fish like salmon, mackerel, lake trout or sardines, at least two times a week, and for those at risk of coronary artery disease to talk to their doctor about supplements,” he said.
“Our main concern here is the hyper-supplemented individual, who may be taking high-dose omega-3 supplements and eating four to five omega-3-enriched foods per day,” Hord added. “This could potentially get someone to an excessive amount. As our paper indicates, there may be subgroups of those who may be at risk from consuming excess amounts of these fatty acids.”
Hord said there are no evidence-based standards for omega-3 intake and no way to tell who might be at health risk if they consume too high a level of these fatty acids.
“We’re not against using fish oil supplements appropriately, but there is a potential for risk,” Hord said. “As is all true with any nutrient, taking too much can have negative effects. We need to establish clear biomarkers through clinical trials. This is necessary in order for us to know who is eating adequate amounts of these nutrients and who may be deficient or eating too much.
“Until we establish valid biomarkers of omega-3 exposure, making good evidence-based dietary recommendations across potential dietary exposure ranges will not be possible.”
Sanjoy Ghosh from University of BC-Okanagan, Canada and Eric Gurzell from Michigan State University also contributed to this study, which was supported by grants from the National Institutes of Health and the Canadian Diabetes Association.College of Public Health and Human Sciences Media Contact: Angela Yeager Source:
Norman Hord, 541-737-5923
Researchers have discovered a new way to study aqueous aluminum - a fundamental advance that should open doors to many new technologies and products.
CORVALLIS, Ore. – Researchers at Oregon State University and the University of Oregon today announced a scientific advance that has eluded researchers for more than 100 years – a platform to study and fully understand the aqueous chemistry of aluminum, one of the world’s most important metals.
The findings, reported in Proceedings of the National Academy of Sciences, should open the door to significant advances in electronics and many other fields, ranging from manufacturing to construction, agriculture and drinking water treatment.
Aluminum, in solution with water, affects the biosphere, hydrosphere, geosphere and anthrosphere, the scientists said in their report. It may be second only to iron in its importance to human civilization. But for a century or more, and despite the multitude of products based on it, there has been no effective way to explore the enormous variety and complexity of compounds that aluminum forms in water.
Now there is.
“This integrated platform to study aqueous aluminum is a major scientific advance,” said Douglas Keszler, a distinguished professor of chemistry in the OSU College of Science, and director of the Center for Sustainable Materials Chemistry.
“Research that can be done with the new platform should have important technological implications,” Keszler said. “Now we can understand aqueous aluminum clusters, see what’s there, how the atomic structure is arranged.”
Chong Fang, an assistant professor of chemistry in the OSU College of Science, called the platform “a powerful new toolset.” It’s a way to synthesize aqueous aluminum clusters in a controlled way; analyze them with new laser techniques; and use computational chemistry to interpret the results. It’s simple and easy to use, and may be expanded to do research on other metal atoms.
“A diverse team of scientists came together to solve an important problem and open new research opportunities,” said Paul Cheong, also an OSU assistant professor of chemistry.
The fundamental importance of aluminum to life and modern civilization helps explain the significance of the advance, researchers say. It’s the most abundant metal in the Earth’s crust, but almost never is found in its natural state. The deposition and migration of aluminum as a mineral ore is controlled by its aqueous chemistry. It’s found in all drinking water and used worldwide for water treatment. Aqueous aluminum plays significant roles in soil chemistry and plant growth.
Aluminum is ubiquitous in cooking, eating utensils, food packaging, construction, and the automotive and aircraft industries. It’s almost 100 percent recyclable, but in commercial use is a fairly modern metal. Before electrolytic processes were developed in the late 1800s to produce it inexpensively, it was once as costly as silver.
Now, aluminum is increasingly important in electronics, particularly as a “green” component that’s cheap, widely available and environmentally benign.
Besides developing the new platform, this study also discovered one behavior for aluminum in water that had not been previously observed. This is a “flat cluster” of one form of aluminum oxide that’s relevant to large scale productions of thin films and nanoparticles, and may find applications in transistors, solar energy cells, corrosion protection, catalytic converters and other uses.
Ultimately, researchers say they expect new technologies, “green” products, lowered equipment costs, and aluminum applications that work better, cost less and have high performance.
The research was made possible, in part, by collaboration between chemists at OSU and the University of Oregon, through the Center for Sustainable Materials Chemistry. This is a collaboration of six research universities, which is sponsored and funded by the National Science Foundation.College of Science Media Contact: David Stauth Source:
Douglas Keszler, 541-737-6736Multimedia Downloads Multimedia:
In an effort to encourage bike and pedestrian safety, Oregon State University is inviting the public to the Memorial Union quad on Wednesday, Oct. 30, from 11 a.m. to 2 p.m., for a special Be Bright! Be Seen! event.
CORVALLIS, Ore. – In an effort to encourage bike and pedestrian safety on campus and around Corvallis, Oregon State University is inviting the public to the Memorial Union quad on Wednesday, Oct. 30, from 11 a.m. to 2 p.m., for a special Be Bright! Be Seen! event.
Just in time for Daylight Saving Time on Nov. 3, the Be Bright! event will feature a variety of illuminated giveaways, educational materials, and the chance to get bicycles registered by Campus Public Safety. Additionally, a number of OSU, city and county organizations will be on-hand to give out prizes and discuss a variety of alternative transportation programs available for OSU students, staff and faculty, as well as the general public.
Bike lights, reflective gear and even some coveted illuminated umbrellas will be given away during the event.
According to the National Highway Traffic Safety Administration, 70 percent of pedestrian deaths occur at night, and three out of four occur in urban areas. Making yourself visible as a pedestrian or bicyclist can be a life or death issue.
The Be Bright! Be Seen! public safety campaign is sponsored by OSU and the city of Corvallis, and includes a variety of partners, including the OSU Student Sustainability Initiative, Campus Public Safety and the Alternative Transportation Advisory Committee.
For more information, visit http://oregonstate.edu/main/be-brightGeneric OSU Media Contact: Theresa Hogue Source:
Steve Clark, 541-737-3808
CORVALLIS, Ore. – Students across the state are getting their hands dirty in school gardens and learning where their food comes from with the help of the Oregon State University Extension Service.
A 22-page report, "Oregon State University School and Youth Gardens," describes the OSU Extension Service's role in supporting 132 gardens in 27 counties from Seaside to Portland to Ontario with 154 staffers and volunteers. The report lists each garden, school and town served by OSU Extension.
"This report shows that school gardens are important not just in teaching kids about nutrition and health, but also in learning valuable skills in agriculture, biology, leadership development and making a difference in their communities," said Maureen Hosty, 4-H youth development faculty with OSU Extension and lead author of the report.
Hotsy developed the report as part of her work representing OSU on the steering committee for the Oregon Farm to School and School Garden Network. OSU Extension staffers and volunteers with all program areas, including 4-H, Master Gardeners and Family and Community Health, are involved. They help plan, implement and organize projects, provide on-site consultations, train teachers and students, develop curriculum and support after-school clubs.
School gardens such as the one run by Walt Morey Middle School in Troutdale have benefited. The school built a 9,000-square-foot rain garden in 2008 to manage stormwater runoff. An Extension-trained Master Gardener helped organize the project, and students selected and planted the landscape in 2008. The school also works with 4-H Wildlife Stewards, an OSU Extension 4-H program of trained volunteers who help students and teachers create wildlife habitats for schools.
Sixth-grade science teacher Michele O'Brien said children collect weather data, observe the garden's natural environment, identify wildlife, study wetlands, write about their experiences in journals and make charts and graphs of their observations. Master Gardeners help maintain the rain garden in the summer and work alongside students during the school year.
"That first class of students who helped build it in 2008 has now graduated from high school," O'Brien said. "When I periodically run into them, they ask about the rain garden. Some of them have gone onto career paths in environmental science in college, and I think the rain garden got them thinking about that. The impact has been tremendous. Without Master Gardeners working with us between their volunteer hours and expertise, it would have been extremely difficult to do this project."
Lea Bates, a coach with Lookingglass Elementary School in Roseburg, coordinated the school's garden for more than 20 years with the support of OSU Extension and other community partners. The large garden includes vegetables, fruit trees, grapes, ornamental plants and even a butterfly garden. Children learn about horticulture, nutrition, math, science and language arts as they weed, plant, water and participate in an after-school 4-H club.
"It's been a wonderful project for the kids and an opportunity for them to supplement what they're learning in the classroom," Bates said. "It's real world experience and an educational opportunity that gets kids out of doors. Everyone says it's fun even though it's also work."
And at Springwater Trail High School in Gresham, English teacher and garden coordinator Paul Kramer receives logistical advice from Extension's 4-H faculty as well as support in curriculum development at the school's one-year-old vegetable garden. Kramer volunteers to coordinate an after-school garden club in which high school students are finishing harvesting lettuce and radishes and learning about cooking and nutrition. They made their own homemade salad dressing, roast beets and pickle cucumbers.
In the process of learning about horticulture, Kramer sees his students gaining aptitude in problem solving and critical thinking. They're also building patience and discipline.
"The most interesting thing they got from the garden was camaraderie and the companionship," Kramer said. "I wasn’t expecting that. Students who would never have hung out together the past were now spending time outside, interacting with another and helping each other."
To download a copy of the report, go to http://bit.ly/OSU_SchoolGardenReport13.Extension Service Media Contact: Denise Ruttan Source:
Maureen Hosty, 541-916-6075Multimedia Downloads Multimedia:
A student at Concord Elementary School in Milwaukie shows off produce from the school garden to Maggie Thornton Farrington, a Master Naturalist with the Oregon State University Extension Service. OSU Extension supports 132 school and youth gardens throughout Oregon. (Photo by Lynn Ketchum.)
Poets Charles Goodrich and Mary Szybist will read from their most recent poetry collections at Oregon State University on Friday, Nov. 8, beginning at 7:30 p.m. in the Valley Library rotunda.
CORVALLIS, Ore. – Poets Charles Goodrich and Mary Szybist will read from their most recent poetry collections at Oregon State University on Friday, Nov. 8, beginning at 7:30 p.m. in the Valley Library rotunda.
A question and answer session and book signing will follow. This is the first reading of the 2013-2014 Literary Northwest Series.
Goodrich is the author of three volumes of poems, “A Scripture of Crows” (2013), “Going to Seed: Dispatches from the Garden” (2010), and “Insects of South Corvallis” (2003), and a collection of essays, “The Practice of Home” (2004). Goodrich is director for the Spring Creek Project for Ideas, Nature, and the Written Word at OSU.
Joseph Bednarik of The Oregonian wrote, “What is so utterly gorgeous about ‘Going to Seed’ is that Goodrich utilizes the obvious metaphors of a garden – growth, decay, work, interdependence, cycles – and ushers them into eye-opening, heart-expanding, humorous and heady territory.”
Szybist is a 2013 National Book Award Finalist and the author of “Granted” (2003), which was a finalist for the National Book Critics Circle Award, and “Incarnadine” (2013). Szybist teaches at Lewis & Clark College and the Warren Wilson MFA Program for Writers.
Craig Morgan Teicher of NPR says, “Szybist is a humble and compassionate observer of the complicated glory of the world and humanity's ambivalent role in it, as inheritors and interlopers.”
Each year the Literary Northwest Series brings Pacific Northwest writers to OSU. This program is made possible by support from The Valley Library, OSU Press, the OSU School of Writing, Literature, and Film, the College of Liberal Arts, Kathy Brisker and Tim Steele, and Grass Roots Books and Music.College of Liberal Arts Media Contact: Angela Yeager Source:
Rachel Ratner, 516-652-5817
Climate change and an overload of nutrients are increasing the toxicity of some algal blooms in lakes around the world.
CORVALLIS, Ore. – Nutrient enrichment and climate change are posing yet another concern of growing importance – an apparent increase in the toxicity of some algal blooms in freshwater lakes and estuaries around the world, which threatens aquatic organisms, ecosystem health and human drinking water safety.
As this nutrient enrichment, or “eutrophication” increases, so will the proportion of toxin-producing strains of cyanobacteria in harmful algal blooms, scientists said.
Researchers from Oregon State University and the University of North Carolina at Chapel Hill will outline recent findings in an analysis Friday in the journal Science.
Cyanobacteria are some of the oldest microorganisms on Earth, dating back about 3.5 billion years to a time when the planet was void of oxygen and barren of most life. These bacteria are believed to have produced the oxygen that paved the way for terrestrial life to evolve. They are highly adaptive and persistent, researchers say, and today are once again adapting to new conditions in a way that threatens some of the life they originally made possible.
A particular concern is Microcystis sp., a near-ubiquitous cyanobacterium that thrives in warm, nutrient-rich and stagnant waters around the world. Like many cyanobacteria, it can regulate its position in the water column, and often forms green, paint-like scums near the surface.
In a high-light, oxidizing environment, microcystin-producing cyanobacteria have a survival advantage over other forms of cyanobacteria that are not toxic. Over time, they can displace the nontoxic strains, resulting in blooms that are increasingly toxic.
“Cyanobacteria are basically the cockroaches of the aquatic world,” said Timothy Otten, a postdoctoral scholar in the OSU College of Science and College of Agricultural Sciences, whose work has been supported by the National Science Foundation. “They're the uninvited guest that just won't leave.”
“When one considers their evolutionary history and the fact that they've persisted even through ice ages and asteroid strikes, it's not surprising they're extremely difficult to remove once they’ve taken hold in a lake,” he said. “For the most part, the best we can do is to try to minimize the conditions that favor their proliferation.”
Researchers lack an extensive historical record of bloom events and their associated toxicities to put current observations into a long-term context. However, Otten said, “If you go looking for toxin-producing cyanobacteria, chances are you won't have to look very long until you find some.”
There are more than 123,000 lakes greater than 10 acres in size spread across the United States, and based on the last EPA National Lakes Assessment, at least one-third may contain toxin-producing cyanobacteria. Dams; rising temperatures and carbon dioxide concentrations; droughts; and increased runoff of nutrients from urban and agricultural lands are all compounding the problem.
Many large, eutrophic lakes such as Lake Erie are plagued each year by algal blooms so massive that they are visible from outer space. Dogs have died from drinking contaminated water.
Researchers studying cyanobacterial toxins say it’s improbable that their true function was to be toxic, since they actually predate any predators. New research suggests that the potent liver toxin and possible carcinogen, microcystin, has a protective role in cyanobacteria and helps them respond to oxidative stress. This is probably one of the reasons the genes involved in its biosynthesis are so widespread across cyanobacteria and have been retained over millions of years.
Because of their buoyancy and the location of toxins primarily within the cell, exposure risks are greatest near the water's surface, which raises concerns for swimming, boating and other recreational uses.
Also, since cyanobacteria blooms become entrenched and usually occur every summer in impacted systems, chronic exposure to drinking water containing these compounds is an important concern that needs more attention, Otten said.
“Water quality managers have a toolbox of options to mitigate cyanobacteria toxicity issues, assuming they are aware of the problem and compelled to act,” Otten said. “But there are no formal regulations in place on how to respond to bloom events.
“We need to increase public awareness of these issues,” he said. “With a warming climate, rising carbon dioxide levels, dams on many rivers and overloading of nutrients into our waterways, the magnitude and duration of toxic cyanobacterial blooms is only going to get worse.”College of Science Media Contact: David Stauth Source:
Tim Otten, 541-737-1796Multimedia Downloads Multimedia: