Navigation Links
Genetic adaptations key to microbe's survival in challenging environment
Date:2/10/2009

The genome of a marine bacterium living 2,500 meters below the ocean's surface is providing clues to how life adapts in extreme thermal and chemical gradients, according to an article published Feb. 6 in the journal PLoS Genetics, an open-access publication published by the Public Library of Science.

The research focused on the bacterium Nautilia profundicola, a microbe that survives near deep-sea hydrothermal vents. Microorganisms that thrive at these geysers on the sea floor must adapt to fluctuations in temperature and oxygen levels, ranging from the hot, sulfide- and heavy metal-laden plume at the vents' outlets to cold seawater in the surrounding region.

The study combined genome analysis with physiological and ecological observations to investigate the importance of one gene in N. profundicola. That gene, called rgy, allows the bacterium to manufacture a protein called reverse gyrase when it encounters extremely hot fluids from the Earth's interior.

Previous studies found the gene only in microorganisms growing in temperatures greater than 80C, but N. profundicola thrives best at much lower temperatures.

"The gene's presence in N. profundicola suggests that it might play a role in the bacterium's ability to survive rapid and frequent temperature fluctuations in its environment," said Assistant Professor of Marine Biosciences Barbara Campbell, the study's lead scientist.

Additional University of Delaware contributors were Professor of Marine Biosciences Stephen Craig Cary, Assistant Professor of Marine Biosciences Thomas Hanson, and Julie Smith, marine biosciences doctoral student. Also collaborating on the project were researchers from the Davis and Riverside campuses of the University of California; the University of Louisville; the University of Waikato in Hamilton, New Zealand; and the J. Craig Venter Institute in Rockville, Md.

The researchers also uncovered
'/>"/>

Contact: Elizabeth Boyle
boylee@udel.edu
302-831-0465
University of Delaware
Source:Eurekalert  

Page: 1 2

Related biology news :

1. CSHL scientists discover how companion cells to sperm protect them from genetic damage
2. Genetic study shows direct link between vitamin D and MS susceptibility gene
3. Effectiveness of progesterone in reducing preterm births may be altered by genetic predisposition
4. CSHL scientists clarify editing error underlying genetic neurodegenerative disease
5. Researchers identify 4 genetic hotspots associated with psoriasis
6. Scientists uncover new genetic variations linked to psoriasis
7. Consumers desire more genetic testing, but not designer babies
8. Far-reaching genetics topics to be addressed: 2009 Annual Clinical Genetics Meeting, March 25-29
9. Scientists unlock possible aging secret in genetically altered fruit fly
10. Researchers genetically link Lou Gehrigs disease in humans to dog disease
11. Genetic testing not cost-effective in guiding initial dosing of common blood thinner
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Genetic adaptations key to microbe's survival in challenging environment
(Date:10/15/2014)... Fred Alt will be awarded the 44th Rosenstiel Award ... for his pioneering research exploring the mechanisms of genomic ... cancer cells. Alt is the second alumnus to win ... Nobel Prize in 2003. , Alt is the Charles ... at Harvard Medical School and an investigator at the ...
(Date:10/14/2014)... 14, 2014)—It,s been millions of years since T. ... led by Ohio University scientists is breathing life back ... through dinosaur snouts. The research has important implications for ... but to enhance the sense of smell and cool ... said Ohio University doctoral student Jason Bourke, lead author ...
(Date:10/14/2014)... oil supplements, rich in omega-3 fatty acids, do not reduce ... the heart can beat as fast as 150 beats a ... Montreal Heart Institute were published in the Journal of ... For the trial, 337 patients with atrial fibrillation not receiving ... fish oil a day or to placebo for up to ...
Breaking Biology News(10 mins):Brandeis awards 44th Rosenstiel Award to pioneering geneticist Fred Alt 2Dinosaur breathing study shows that noses enhanced smelling and cooled brain 2Dinosaur breathing study shows that noses enhanced smelling and cooled brain 3
... Symposium on Multimodality Cardiovascular Molecular Imaging ... cell therapy, leading-edge research in imaging technology and ... of cardiovascular receptors, vascular biology, myocardial metabolism and ... Partnership for Critical Markers of Disease will host ...
... million year old fossils reveal much earlier origins of modern ... The chances of an octopus corpse surviving long enough to ... only a single fossil species was known, and from fewer ... octopus is. Even if you have never encountered one in ...
... - NASA scientists analyzing the dust of meteorites have discovered ... on its most basic, molecular level. "We found more ... created in space and brought to Earth by meteorite impacts ... of NASA,s Goddard Space Flight Center in Greenbelt, Md. "By ...
Cached Biology News:SNM Symposium on Multimodality Cardiovascular Molecular Imaging 2Cretaceous octopus with ink and suckers -- the world's least likely fossils? 2NASA researchers find clues to a secret of life 2NASA researchers find clues to a secret of life 3
(Date:10/22/2014)... KONG , Oct. 22, 2014  aTyr Pharma ... that rare disease expert John C. McKew , ... McKew brings more than two decades of expertise in ... Institutes of Health, Wyeth Research and Genetics Institute, Inc. ... aTyr,s efforts to expand and translate its novel Physiocrine ...
(Date:10/20/2014)... Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced four new ... and provides a good start to Q4.  The orders are for ... and one in the Middle East . ... Peter Bruijns , President & CEO. "Total bidding activity and ... have been for any complete year since the company has tracked ...
(Date:10/20/2014)... Earle Martin , Chief ... that Ellen Teplitzky, an experienced attorney specializing in ... industry, has joined the firm as Director of ... practice. NDA Partners provides legal services, including ... to top law firms and their clients in ...
(Date:10/19/2014)... The Asia-Pacific Bromine Market report defines and segments ... forecast of revenue. , Browse through the TOC ... get an idea of the in-depth analysis provided. ... in the Asia-Pacific bromine market, and is supported ... http://www.micromarketmonitor.com/market/asia-pacific-bromine-6741503144.html , Bromine is a volatile and ...
Breaking Biology Technology:aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3NDA Partners Appoints Ellen Teplitzky, JD as Director of its Legal Services Practice 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 3
... Reportlinker.com announces that a new market research ... Enzymes: Sustainable Alternatives with Remarkable ... Enzymes are among the most ... host of different roles in a wide ...
... Oppenheimer & Co. Inc., a unit of Oppenheimer Holdings, ... the firm as Managing Director in the Healthcare group of ... its life science business. He will report to Brian McCarthy, ... Since 2003, Matthias had worked at JMP Securities, where ...
... 2011 Children at Paterson Public School No. 5 ... of more than 200 volunteers from Roche, New Jersey ... organizers from non-profit KaBOOM!. The new playground provides the ... as well as children living in the neighborhood with ...
Cached Biology Technology:Reportlinker Adds Enzymes: Sustainable Alternatives with Remarkable Scope 2Reportlinker Adds Enzymes: Sustainable Alternatives with Remarkable Scope 3Designed by Kids, Built by Volunteers: Roche, New Jersey Community Development Corporation, and KaBOOM! Build New Playground in Just One Day for Paterson Public School Children 2Designed by Kids, Built by Volunteers: Roche, New Jersey Community Development Corporation, and KaBOOM! Build New Playground in Just One Day for Paterson Public School Children 3Designed by Kids, Built by Volunteers: Roche, New Jersey Community Development Corporation, and KaBOOM! Build New Playground in Just One Day for Paterson Public School Children 4
...
Request Info...
Human RUNX2/CBFA1 MAb (Clone 232902)...
... Peroxidase Conjugate, 2 ml. ... enzyme molecules for use ... situ hybridization applications.High specificity ... Labeling & Detection, Protein ...
Biology Products: