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

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researchers say, and today are once again adapting to new conditions in a way that threatens some of the life they originally made possible.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, they're the uninvited guest that just won't leave," said Timothy Otten, a postdoctoral scholar in the OSU College of Science and College of Agricultural Sciences. His work has been supported by the National Science Foundat
'/>"/>

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:4/17/2015)... 17, 2015 Increasing ... technological advancement to drive biometric systems market in ...   According to a recently released ... &  Opportunities, 2020 ", biometric systems market in ... growth at CAGR of over 22% through 2020. ...
(Date:4/14/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or ... growing mobile commerce market, announces that its Wocket® smart ... Design Awards under the category  ,Product Design – Technology,. ... are part of a global multi-disciplinary awards program. The ... marketplace, industry and judging panel. Winners will be announced ...
(Date:4/13/2015)... CHICAGO , April 13, 2015  higi, a ... with ways to more fully engage with their communities ... its industry-leading, privacy protected and secure API.  ... API enables the most accessible, affordable, and convenient vehicle ... The API will ...
Breaking Biology News(10 mins):Saudi 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 3NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3
... expressions of different types are detected in a crowd ... faces are a priority for visual processing ?particularly for ... of the Massachusetts Institute of Technology and Jason Mattingley ... the June 6th issue of Current Biology. , ...
... demonstrated that learning about the appearance of their parents ... parental traits, rather than traits that more exactly match ... help drive the evolution of exaggerated traits and strong ... and other animals. The findings are reported by Carel ...
... of Michigan Kellogg Eye Center have gained new insight into ... itself to a specific role. They have observed a small ... to play a particular role, but has not yet begun ... vantage point for understanding how a healthy visual system develops. ...
Cached Biology News:Zebra finch males prefer females with exaggerated maternal traits 2Study provides first look at the 'birth' of a retina cell 2Study provides first look at the 'birth' of a retina cell 3
(Date:6/1/2015)... , June 1, 2015 ... ) has announced the addition of the ... (Consumables, Instruments, Services), Test Type (Indirect, Enzyme-based, ... Flow Cytometry), End Users - Global Forecast ...      (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ...
(Date:6/1/2015)... 2015 /PRNewswire/ - BIOREM Inc. (TSX-V: BRM) ("Biorem" or "the Company") today ... Biorem,s complete 2015 first quarter financial statements and MD&A have been ... March 31,(in CDN$,000 except per share data) , ... 1,974 Gross profit , 1,531 , 329 ... , 528 , (531) Basic earnings (loss) per ...
(Date:6/1/2015)... , May 29, 2015 Research ... addition of the "Global Bioinformatics Market 2015-2019" ... analysts forecast the global bioinformatics market to grow ... 2014-2019. Bioinformatics is a field of science ... consists of information stored in DNA form and ...
(Date:6/1/2015)... Frederick MD (PRWEB) June 01, 2015 ... that they have entered into a commercial collaboration ... both companies will combine their technologies and work ... cell (MSC) regenerative technology. RoosterBio and Sistemic will ... and technologies to build more precise and relevant ...
Breaking Biology Technology:Oxidative Stress Assay Market 2015 - Global Forecast to 2020 2Biorem Reports Increased Revenues and Earnings for First Quarter 2Biorem Reports Increased Revenues and Earnings for First Quarter 3Global Bioinformatics Market 2015-2019 - Rapid Developments in Molecular Diagnostics 2Global Bioinformatics Market 2015-2019 - Rapid Developments in Molecular Diagnostics 3Sistemic and RoosterBio Inc Announce Broad Collaboration Agreement to Advance miRNA and Mesenchymal Stem/Stromal Cell (MSC) Regenerative Technology 2Sistemic and RoosterBio Inc Announce Broad Collaboration Agreement to Advance miRNA and Mesenchymal Stem/Stromal Cell (MSC) Regenerative Technology 3Sistemic and RoosterBio Inc Announce Broad Collaboration Agreement to Advance miRNA and Mesenchymal Stem/Stromal Cell (MSC) Regenerative Technology 4
... Biotechnology, Inc. (OTC: CSBR) ("Champions") announced today the ... Inc. in which Champions will conduct low passage ... an inhibitor of mutant B-Raf, and CEP-37440, a ... determine the activity or response in potential clinical ...
... Laboratory, Inc. (HDL, Inc.) and BG Medicine, Inc. (Nasdaq: ... Inc. will offer galectin-3 testing services based on the BG ... Test was recently cleared by the FDA as an aid ... Elevated galectin-3 levels are associated with an inherently progressive form ...
... The Ontario Institute for Cancer Research (OICR) ... accelerate commercialization of a potentially revolutionary high-throughput screening ... The technology, Smart Well Plate™, developed at the ... utilizes digital microfluidics (DMF), a technique that allows ...
Cached Biology Technology:Champions Announces Technology Collaboration Utilizing Champions' Tumorgraft™ Technology Platform for Oncology Drug Development 2Champions Announces Technology Collaboration Utilizing Champions' Tumorgraft™ Technology Platform for Oncology Drug Development 3Health Diagnostic Laboratory, Inc. (HDL, Inc.) Announces Availability of Galectin-3 Testing Service in Partnership With BG Medicine 2Health Diagnostic Laboratory, Inc. (HDL, Inc.) Announces Availability of Galectin-3 Testing Service in Partnership With BG Medicine 3Health Diagnostic Laboratory, Inc. (HDL, Inc.) Announces Availability of Galectin-3 Testing Service in Partnership With BG Medicine 4Ontario Institute for Cancer Research Announces Investment in Microfluidics Technology for the Discovery of Anti-Cancer Drugs 2Ontario Institute for Cancer Research Announces Investment in Microfluidics Technology for the Discovery of Anti-Cancer Drugs 3
Tracker Datamatrix TRxD reads any 1D and 2D barcodes within 0.5 seconds....
Complete cell culture media with cytokines...
... BioChain's monkey normal multiple tissue ... specific cellular localization of genes or ... tissues. Tissues are mounted on positively ... Blots are available in the identical ...
8 different frozen tissues are mounted on positively charged glass slides...
Biology Products: