Navigation Links
Increasing toxicity of algal blooms tied to nutrient enrichment and climate change
Date:10/24/2013

ion.

"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.

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
'/>"/>

Contact: Tim Otten
ottent@onid.orst.edu
541-737-1796
Oregon State University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. New study finds nighttime heat waves increasing in Pacific Northwest
2. Research shows Vitamin D levels drop after pediatric heart surgery, increasing sickness
3. AACR news: Studies show increasing evidence that androgen drives breast cancer
4. New hypothesis: Why bacteria are becoming increasingly more resistant to antibiotics
5. Increasing evidence links high glycemic index foods and dairy products to acne
6. Antibacterial agent used in common soaps found in increasing amounts in freshwater lakes
7. Ornamental fish industry faces increasing problems with antibiotic resistance
8. Community-based nutrition education shown to be successful in increasing calcium intake
9. Fire and ice: Wildfires darkening Greenland snowpack, increasing melting
10. Increasing drought stress challenges vulnerable hydraulic system of plants, GW professor finds
11. Environmental concerns increasing infectious disease in amphibians, other animals
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Increasing toxicity of algal blooms tied to nutrient enrichment and climate change
(Date:4/27/2015)... OXFORD, Conn. , Apr. 27, 2015 ... "Company"), a biometric authentication company focused on the growing ... will commence shipping to pre-order customers the first week ... pre-orders through the month of May. ... is a significant milestone for the company as Wocket® ...
(Date:4/17/2015)... Canada , April 17, 2015 ... growing security concerns, and technological advancement to drive ... until 2020   According ... Saudi Arabia Biometric Systems Market Forecast &  Opportunities, 2020 ", biometric systems ... is projected to register growth at CAGR of ...
(Date:4/10/2015)... , April 10, 2015 Research ... of the "Security Competitive Profiles - NEC" ... , NEC will continue to supply a ... the market, with a company focus on the development ... Winning opportunities in the Asia-Pacific ...
Breaking Biology News(10 mins):Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 2Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 3NEC Security Competitive Profile 2015 2
... To promote the health of at-risk teenagers in Newark and ... The Horizon Foundation for New Jersey. ... to teach middle and high school students about nutrition, physical ... carried out by the Consortium for Pre-College Education in Greater ...
... of Anatomists has chosen Springer to publish its official ... issue will be published at Springer in April 2009. ... Anatomical Science International focuses on the morphological ... cellular, histological and gross anatomical studies. In addition ...
... world, nitrogen compounds are released to the atmosphere ... These pollutants are deposited to ecosystems as precipitation, ... downwind of their release point. The Catskill Mountains ... pointthough they contain little in the way of ...
Cached Biology News:Anatomical Science International joins Springer's publishing program 2Tree species composition influences nitrogen loss from forests 2
(Date:5/1/2015)... , May 1, 2015 ... equities: Genetic Technologies Ltd (NASDAQ: GENE ), ... Fisher Scientific Inc. (NYSE: TMO ), Sequenom ... (NYSE: PKI ). Free research report on ... . On Thursday, April 30, 2015, the NASDAQ ...
(Date:5/1/2015)... and RESEARCH TRIANGLE PARK, N.C. , May ... announced today that Roger Jeffs , Ph.D., President and ... and update on the company,s business at the Deutsche Bank ... Boston, Massachusetts . The presentation will take ... Time, and can be accessed via a live webcast on ...
(Date:4/30/2015)... 2015   Tamir Biotechnology , a leading developer ... its Ebola antiviral therapy program. Clinical ... currently being evaluated and considered by a number of ... During the first quarter of 2015, the company participated ... The Evaluation of Potential Treatments and Vaccines For Ebola ...
(Date:4/30/2015)... Nitto Avecia, a leading biotechnology ... capacity and production capability to serve biotechnology pharmaceutical ... service fulfillment continues to drive Nitto Avecia to ... capacities. , In Fall 2014, Nitto ... equipment at its Milford, MA facility, which is ...
Breaking Biology Technology:Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 2Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 3Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 4Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 5Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 2Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 3Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 4Biotechnology Manufacturer Nitto Avecia Expands Capacity to Meet Client Demand 2
... supercomputer relies on off-the-shelf chips, open-source OS , ,Chippewa ... (SGI) in more ways than one. , ,As the companys ... back door in the final days of its fiscal first ... latest flagship product, the Altix 3000 family of servers and ...
... Madison , ,MADISON, WI- The University of Wisconsin ... eWeek, a weekly magazine for information technology executives, to ... enterprise computing solutions. , ,The testing took place ... the University of Wisconsin-Extension Pyle Center. The testing criteria ...
... Tucked away in a basement at Menasha Advantage, ... center its staff affectionately calls The Skunkworks. There, a ... of Radio Frequency Identification technology, Menasha Advantage is building ... a supply chain to another. The Internet-based system will ...
Cached Biology Technology:SGI banking on Altix to pay the freight 2SGI banking on Altix to pay the freight 3Six Spam Fighters Face Off in Madison 2Six Spam Fighters Face Off in Madison 3Six Spam Fighters Face Off in Madison 4E-Commerce Skunkworks in Menhasa 2E-Commerce Skunkworks in Menhasa 3
... 75 x ... recommended for immunohistochemistry of paraffin-embedded sections, ... at one end, markings ... normal procedures, precleaned, ...
1000X solution used for inducing CopyControl™ based vectors to high copy numbers...
Donor feline serum and plasma...
Request Info...
Biology Products: