Navigation Links
Scientists sequence genome of the N2-fixing, soil-living bacterium Azotobacter vinelandii
Date:6/17/2009

Blacksburg, Va. A collaboration of researchers, which includes scientists at the Virginia Bioinformatics Institute (VBI) and Virginia Tech, have completed the genome sequence of Azotobacter vinelandii, uncovering important genetic information that will contribute to a more complete understanding of the biology of this versatile, soil-living bacterium. The work will help advance research on A. vinelandii's role as a model study organism for investigation of nitrogen fixation and other biochemical processes. It will also pave the way for new applications in biotechnology, including the possible use of A. vinelandii as a "factory" for the production of other proteins, in particular those that may be damaged by the presence of oxygen.

A. vinelandii lives in soil and has the ability to convert nitrogen from the atmosphere into ammonia via bacterial enzymes called nitrogenases. Nitrogen fixation is essential for life since different nitrogen-containing molecules are used to produce DNA and the amino acids that are the building blocks of proteins. For most bacteria, the nitrogenase enzymes involved in nitrogen fixation are very susceptible to destruction by oxygen. A. vinelandii is one of the few bacteria that can fix nitrogen in the presence of oxygen, using three distinct nitrogenase systems.

The work of the Azotobacter vinelandii genome project team, which will be featured on the cover of the second July 2009 issue (14) of the Journal of Bacteriology*, identifies unique features of the A. vinelandii genome that explain how the bacteria is involved in oxygen-sensitive reactions such as nitrogen fixation, while maintaining strictly aerobic metabolism.

A. vinelandii has one of the highest respiratory rates of any known bacterium and has the capacity to maintain low levels of cytoplasmic oxygen through a process called respiratory protection. The sequence of the bacteria's g
'/>"/>

Contact: Susan Bland
subland@vbi.vt.edu
540-231-7912
Virginia Tech
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Horse whisperers, lion tamers not needed: Scientists find genetic regions that soothe savage beasts
2. Scientists should look at their own carbon footprint
3. Scientists tackle the mystery of white-nose syndrome in bats
4. Scientists examine perceptions of risk and the spread of disease
5. Scientists discover new genetic immune disorder in children
6. Scientists uncover mode of action of enzyme linked with several types of cancer
7. Scientists unravel the mystery of white-nose syndrome
8. Seventy-three scientists elected to the American Academy of Microbiology
9. Scientists examine human behavior and the threat of disease
10. Singapore scientists elected into National Academy of Sciences
11. Scientists explain how death receptors designed to kill our cells may make them stronger
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/20/2015)...  Acuity Market Intelligence,s latest research "The Global ... and Privacy" forecasts that between 2014 and 2020 ... downloaded to smart mobile devices by 2.2 billion ... projected to generate more than $67.9 billion in ... period.    "Biometrics is at the ...
(Date:7/9/2015)... 2015  Synaptics Inc. (NASDAQ: SYNA ), a leading ... will report financial results for the fourth quarter and ... the close of market. The company will host a ... p.m. PT (5:00 p.m. ET), during which management may ... the live call, analysts and investors should dial 888-455-2260 ...
(Date:7/9/2015)... July 9, 2015  Synaptics Inc. (NASDAQ: ... human interface solutions, today announced a new ... fully hardware encapsulated fingerprint sensor and matching ... is literally off the grid, isolating fingerprint ... within the fingerprint sensor to provide ultimate ...
Breaking Biology News(10 mins):Biometrics on Smart Mobile Devices to Redefine Digital Identity with 12.9 Billion Biometric App Downloads between 2014 and 2020 2Synaptics to Report Fourth Quarter, Fiscal Year 2015 Results on July 30 2Synaptics Announces World's First Match-in-Sensor Fingerprint Authentication Technology 2Synaptics Announces World's First Match-in-Sensor Fingerprint Authentication Technology 3
... More than a century ago, a brilliant young ... Prize for her ground-breaking discoveries in radioactivity. ... of Chemistry, is carrying on Curie,s spirit of trail-blazing ... in Curie,s name. Last summer, Martn Rodrguez was ...
... The shells of marine snails known as pteropods ... ocean acidification according to a new study published this week ... animals are a valuable food source for fish and birds ... During a science cruise in 2008, researchers from ...
... You can see the color white; you can hear white noise. ... white odor. Their research findings appear today in the Proceedings ... The white we see is actually a mixture of light waves ... white noise is made of a combination of assorted sound frequencies. ...
Cached Biology News:Following in Marie Curie's footsteps 2First evidence of ocean acidification affecting live marine creatures in the Southern Ocean 2The smell of white 2
(Date:7/29/2015)... 29, 2015  AsureQuality and Ubiquitome have agreed ... applications in food and primary production sectors. The ... PCR device, the Freedom4. AsureQuality provides ... the supermarket shelf for producers, processors and Competent ... animal disease control and pest management and surveillance ...
(Date:7/29/2015)... July 29, 2015 ... the addition of the "Global Biosimilars Market, ... The Global Biosimilars Market, 2015 - ... rapidly growing biosimilars market. With the blockbuster biologics ... minimize costs, biosimilars are being viewed as viable ...
(Date:7/29/2015)... , July 29, 2015  AmnioChor Inc., an early ... is very pleased to announce that the Musculoskeletal Transplant ... agreed to invest in their seed round of development ... tissue storage capabilities. AmnioChor,s technology allows ... the human stem cells living within those tissues. Amnion ...
(Date:7/29/2015)... 29, 2015  Pfenex Inc. (NYSE MKT: PFNX) announced ... be released on Thursday, August 13, 2015, before the ... management will host a conference call to discuss the ... release outlining the financial results and business update will ... Please call 1-866-376-8058 (US) or 1-412-542-4131 (international) and reference ...
Breaking Biology Technology:AsureQuality and Ubiquitome Partner on Applications for Mobile Molecular Food Safety Testing 2Global Biosimilars Market to 2025: Monoclonal Antibodies (mAbs), Insulin, Interferons, G-CSF/ GM-CSF, Erythropoietins and Others 2Global Biosimilars Market to 2025: Monoclonal Antibodies (mAbs), Insulin, Interferons, G-CSF/ GM-CSF, Erythropoietins and Others 3The Musculoskeletal Transplant Foundation Agrees to Invest in AmnioChor 2Pfenex To Report Second Quarter 2015 Results and Provide Business Update on Thursday, August 13, 2015 2
... , Catalog #732-6340 , ... Method , Cell Lysis ... mg frozen , tissue (which may be finely ground with a mortar ... a 50 ml tube. Work quickly , and keep tissue cold to ...
... PhD, Clinical , Virology Group, Institute of Virology, ... 1, A 1210 Vienna, Austria , , ... The purity of the DNA template employed in sequencing PCR ... in nucleotide sequencing. The presence of , contaminants ...
... L. A. Knapp, 1, 2 E. Lehmann, 2 L. Hennes, 3 ... 2, 3 , 1 Department of Biological ... Primate Research Center, University of Wisconsin, , , ... Wisconsin Hospital and Clinics, Madison, Wisconsin, U.S.A. , ...
Cached Biology Technology:DNA Isolation From 300 to 450 mg Dried or 600 to 1,200 mg Fresh Leaf Tissue 2Comparison of PCR Kleen Spin Columns to Traditional Methods for Purification of PCR Products Prior to Sequencing, Rev A 2Comparison of PCR Kleen Spin Columns to Traditional Methods for Purification of PCR Products Prior to Sequencing, Rev A 3Comparison of PCR Kleen Spin Columns to Traditional Methods for Purification of PCR Products Prior to Sequencing, Rev A 4Separation of HLA-DRB Alleles by Denaturing Gradient Gel Electrophoresis using the DCode System 2Separation of HLA-DRB Alleles by Denaturing Gradient Gel Electrophoresis using the DCode System 3Separation of HLA-DRB Alleles by Denaturing Gradient Gel Electrophoresis using the DCode System 4