HOME >> BIOLOGY >> NEWS
DNA test solving Chesapeake's toxic mysteries

As the summer heats up Chesapeake Bay waters, a new kind of test to detect toxic marine microbes is sharpening Maryland efforts to predict fish-killing Pfiesteria. The test also helps medical studies of illness associated with the microbe.

David Oldach of the University of Maryland Biotechnology Institute (UMBI) reports that the test, applied to samples of mud or water, rapidly identifies Pfiesteria piscicida. In 1997, the microbe was linked with major fish kills in three Maryland rivers as well as previous fish kills in North Carolina. In addition, watermen near the fish kills and laboratory workers handling Pfiesteria cultures have suffered from illness ranging from skin lesions and stomach cramps to temporary memory loss and learning impairment lasting up to seven weeks.

In a recent issue of the Proceedings of the National Academy of Sciences, Oldach writes that the test is based on a "time-tested molecular biology method used commonly in medical research." The method, called HMA, is more often used to tease ut different strains of viruses in studies of Hepatitis C, AIDS, or gene mutations linked with cancer, or genetic diseases, such as cystic fibrosis.

Oldach and colleagues at UMBI's Institute of Human Virology (IHV) applied the method to samples of water and cultures of Pfiesteria-like microbes from Maine, Maryland, and North Carolina. The result is a DNA fingerprint of Pfiesteria used in the new test. The test can be adapted to detect other toxic marine organisms, he adds.

Last year in Maryland, experiments on the new test helped show that P. piscicida existed in at least 14 rivers and increased dramatically in July and August, according to Dave Goshorn, chief of the Maryland Department of Natural Resources' (DNR) Living Resource Assessment Program. "We found that the new test works so well, we will expand from 50 to 100 testing sites in the Bay area in 2000, in addition to any fish kill sites."

The new Pfiesteria test i
'"/>

Contact: Steve Berberich
berberic@umbi.umd.edu
410-385-6315
University of Maryland Biotechnology Institute
30-Jul-2000


Page: 1 2 3

Related biology news :

1. Carnegie Mellon scientists reveal ways of studying, resolving PCB contamination in US rivers
2. Imaging the brain solving problems through insight
3. Saint Louis University researchers make breakthrough towards solving the cause of cancer development
4. Chemistry to play major role in solving 21st century challenges
5. Resolving Conflicts -- What We Can Learn From The Apes
6. Rice finds on-off switch for buckyball toxicity
7. Prion propagation: Avoiding the toxic oligomer
8. Byproduct of water-disinfection process found to be highly toxic
9. Stem cells more vulnerable to toxic chemotherapy when protective molecule is disabled
10. Sediments in many Central Valley streams contain toxic levels of pyrethroid pesticides
11. JGI decodes wood & toxic waste-degrading fungus genome

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/28/2017)... 27. Februar 2017  EyeLock LLC, ein marktführendes Unternehmen ... erstklassige biometrische Lösung zur Iris-Erkennung auf der ... LTE auf dem Mobile World Congress 2017 ... in Halle 3, Stand 3E10, vorstellen. ... Qualcomm Haven™ – eine Kombination aus Hardware, ...
(Date:2/24/2017)... BARCELONA, Spain , Feb. 24, 2017  EyeLock LLC, ... will demonstrate its elite iris biometric solution on ... with X16 LTE at Mobile World Congress ... in Qualcomm,s Booth in Hall 3, Stand ... contains the Qualcomm Haven™ security platform—a combination ...
(Date:2/21/2017)... , February 21, 2017 ... 70 Millionen US-Dollar wachsen. Nach einem Gespräch mit mehr als ... einige Hindernisse zu überwinden gilt, um diese Prognose zu ... ... anderem die Mobilisierung der finanziellen Mittel für die Biobank, ...
Breaking Biology News(10 mins):
(Date:3/22/2017)... --  Boston Biomedical , an industry leader in the ... stemness pathways, today announced its Board of Directors has ... Officer, effective April 24, 2017. Ms. ... FACP, who has led Boston Biomedical since he founded ... Biomedical has grown from a "garage startup" without technology ...
(Date:3/22/2017)... (PRWEB) , ... March 21, 2017 , ... Premier executive ... & Life Science Search Firm by Hunt Scanlon Media. , Hunt Scanlon ... and the most widely referenced global news source in the human capital sector. , ...
(Date:3/22/2017)... ... March 21, 2017 , ... ... acquire information on the desired increase and/or decrease in antibody-dependent cellular cytotoxicity or ... N-glycosylation profiling of therapeutic antibodies. , To meet this demand, the team ...
(Date:3/22/2017)... , ... March 21, 2017 , ... ... , more than tripling its goal and raising over $30,000 in the first ... that grows nutritious veggies & herbs fast, easy, and affordably, anywhere. , “Simply ...
Breaking Biology Technology:
Cached News: