Navigation Links
Genetic adaptations key to microbe's survival in challenging environment

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
University of Delaware

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:
Related Image:
Genetic adaptations key to microbe's survival in challenging environment
(Date:9/30/2015)... , Sept. 30, 2015  The global glucose monitoring device ... 2015. So says a new report on the industry from ... segment dominate the market, followed by continuous glucose monitoring and ... on the market for these products in its latest report, ... , ...
(Date:9/28/2015)... , Sept. 28, 2015 ... today that its expedited traveler service is ... platform transforms travel, bringing a frictionless experience, ... members. "CLEAR offers our travelers ... customer service," said Jim Smith , ...
(Date:9/28/2015)... , September 28, 2015 ... Component (Hardware & Software), Product (Scanner & Others), Application ... & Defense, & Others) & Geography Global - Forecast ... expected to reach USD 3627.90 Million by 2020, at ... Browse 65 market data T ables ...
Breaking Biology News(10 mins):
... and Nanosystems Research (IBN), Austrian Academy of Sciences ... of Technology, Cambridge, USA report the study of ... Designer Lipid-Like Peptide Surfactants” in the May 30th ... Their findings not only help us to ...
... a chronic and progressive lung disorder from which most patients ... by the insidious onset of dyspnea or cough and usually ... coworkers present in an article published in the online, open-access ... that a subset of IPF patients has a short duration ...
... chronic lung disease typically characterized by the slow but ... patients live about five years after diagnosis. However, according ... online journal PLoS ONE, a subset of patients with ... progression to complete pulmonary failure and death without a ...
Cached Biology News:
(Date:10/9/2015)...  Pulmatrix, Inc., (NASDAQ: PULM ) will be webcasting ... th Annual BIO Investor Forum on Tuesday, ... --> th Annual BIO Investor Forum ... pm EDT). --> Pulmatrix will be presenting ... on Thursday, October 15, 2015 at 8:30 am EDT. Additionally, ...
(Date:10/8/2015)... SAN DIEGO , Oct. 8, 2015 /PRNewswire/ ... oncology company developing new treatments for cancer and ... Chief Executive Officer, will be presenting at the ... Las Vegas :Event:Aegis Capital Corporation 2015 ... PDTLocation:Brahms 2 room, The Encore @ The Wynn ...
(Date:10/8/2015)... 2015 .   ... Goldman Small Cap Research, a stock market ... microcap sectors, announced today that it has published ... Inc. (OTCQB - PMCB), a publicly traded, clinical ... treatments for cancer and diabetes. To view the ...
(Date:10/8/2015)... 2015 /PRNewswire/ - RepliCel Life Sciences Inc. (OTCQB: REPCF) (TSX.V: ... the development of autologous cell therapies, today announced its schedule ... place in the month of October: Stem ... RepliCel will be presenting at the annual Partnering Forum, ... to be held October 7-9 in La ...
Breaking Biology Technology:
... sole U.S. supplier of 3M electrosurgical grounding pads ... ... Industries, Inc. and,3M Health Care announce an exclusive license and supply ... agreement,Medline has acquired the exclusive license and sales rights in the ...
... Eastern Time Today, GAITHERSBURG, Md., March 6 ... and corporate progress for,the full year ended December 31, ... further demonstrated that Iomai,s,vaccine and immunostimulant patches can be ... chief executive officer,of Iomai. "This lays the foundation for ...
... (Pink Sheets: VXGN), a biopharmaceutical company, today reported its,year ... a view to,ensuring that stockholders have the most current ... with Raven biotechnologies,inc. VaxGen,s Board of Directors has set ... of Stockholders to vote on the proposed merger., ...
Cached Biology Technology: