Navigation Links
Microbe fixes nitrogen at a blistering 92 C

A heat-loving archaeon capable of fixing nitrogen at a surprisingly hot 92 degrees Celsius, or 198 Fahrenheit, may represent Earth’s earliest lineages of organisms capable of nitrogen fixation, perhaps even preceding the kinds of bacteria today's plants and animals rely on to fix nitrogen.

The genetic analysis reported in the Dec. 15 issue of Science supports the notion that the gene needed to produce nitrogenase ?an enzyme capable of converting nitrogen gas, that's unusable by life, to a form like ammonia that is useable ?arose before the three main branches of life ?bacteria, archaea and eukaryotes ?diverged some 3.5 billion years ago, according to oceanographer Mausmi Mehta, who recently received her doctorate from the UW, and John Baross, UW professor of oceanography. This is opposed to the theory that the nitrogenase system arose within archaea and was later transferred laterally to bacteria.

"There's been lots of evidence that point to high-temperature archaea as the first life on Earth but the question has been, 'So why can’t we find archaea that fix nitrogen at high temperatures"'" says Baross, who’s been on a 20-year quest to find just such a microbe. Archaea are single-celled organisms that live under extreme environmental conditions, such as the high temperatures and crushing pressures below the seafloor. If heat-loving archaea were the first life on the planet, they would have needed a usable source of nitrogen, Baross says.

Known as FS406-22 because of the fluid and culture samples it came from, the archaeon discovered by the UW researchers is the first from a deep-sea hydrothermal vent that can fix nitrogen, says Mehta, first author on the Science paper.

It was collected at Axial Volcano on the Juan de Fuca Ridge off the coast of Washington and Oregon. Fixing nitrogen at 92 C smashes the previous record by 28 C, a record held by Methanothermococcus thermolithotrophicus, an archaeon that was isolated from geothermally
'"/>

Source:University of Washington


Page: 1 2 3

Related biology news :

1. Researchers Discover That Microbes Can Produce Miniature Electrical Wires
2. Microbe has huge role in ocean life, carbon cycle
3. Microbes under Greenland Ice may be preview of what scientists find under Mars surface
4. Microbes convert Styrofoam? into biodegradable plastic
5. Microbes hitchhike across Atlantic on desert dust
6. Microbes transform safest PBDEs into more harmful compounds
7. Microbes compete with animals for food by making it stink
8. Microbes start immune response by sneaking inside cells
9. Gene therapy for muscular dystrophy fixes frail muscle cells in animal model, Stanford study finds
10. Plant hemoglobins: Oxygen handlers critical for nitrogen fixation
11. Anammox bacteria produce nitrogen gas in oceans snackbar
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Microbe fixes nitrogen blistering

(Date:4/17/2015)... 2015 Increasing adoption ... advancement to drive biometric systems market in ... According to a recently released TechSci ... ", biometric systems market in Saudi ... at CAGR of over 22% through 2020. The ...
(Date:4/13/2015)... 2015 According to a ... Market Forecast & Opportunities, 2020", the global biometrics market ... 14% till 2020. The biometrics market is garnering ... and review of biometric management systems. The constant ... with greater efficiency, are resulting in increasing installation ...
(Date:4/9/2015)... Calif. , April 9, 2015 Synaptics ... interface solutions, announced today that it will report financial ... Thursday, April 23, 2015, after the close of market. ... analysts and investors at 2:00 p.m. PT (5:00 p.m. ... To participate on the live call, analysts ...
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 3Global Biometrics Market to Cross US$ 21 Billion by 2020: TechSci Research 2Synaptics to Report Third Quarter Results on April 23 2
... science data from a NASA and U.S. Geological Survey satellite ... to tease out the small events that can cause big ... is able to find patterns previously buried within vast amounts ... seeing for the first time in satellite imagery an obscured, ...
... well known that violent adults often have a history ... very real, physical alterations in a part of the ... between such early trauma and neurological changes has been ... January 15 edition of Translational Psychiatry , EPFL ...
... Calif. Exposing pregnant mice to low doses of the ... and PVC plastic can lead to obesity for multiple ... After exposing pregnant mice to TBT in concentrations similar ... fat, liver fat and fat-specific gene expression in their "children," ...
Cached Biology News:Landsat senses a disturbance in the forest 2Landsat senses a disturbance in the forest 3Landsat senses a disturbance in the forest 4Childhood trauma leaves its mark on the brain 2
(Date:4/18/2015)... , April 18, 2015 ... CRIS ) will be presenting data at the ... Associate of Cancer Research Annual Meeting (April 18-22 ...      (Logo: http://photos.prnewswire.com/prnh/20130418/608115 ) , ... Nicotinamide phosphoribosyltransferase (NAMPT) small molecule inhibitors program, which ...
(Date:4/17/2015)... 2015 Reed Technology and Information ... data management, preparation, and submission to the U.S. Food ... a new Lot Distribution Report (LDR) service for manufacturers ... compliant with the FDA’s new rule on electronic submission ... monitor the volume and timing of particular biologics introduced ...
(Date:4/17/2015)... , April 17, 2015 /PRNewswire/ - SQI Diagnostics Inc. ... diagnostics company that develops and commercializes proprietary technologies ... announced that it has received approval from the ... 5,126,044 outstanding common share purchase warrants ("the Warrants") ... with the Company,s May 2013 private placement financing. ...
(Date:4/17/2015)... -- US-Australian drug discovery company, Novogen, today announced that ... the Feinstein Institute for Medical Research (,Feinstein Institute,) ... collaborate with the objective of developing effective treatments ... together the drug discovery expertise of Novogen and ... Institute in neurosciences and oncology. At ...
Breaking Biology Technology:Aurigene to Present its NAMPT and IRAK-4 Inhibitors Programs at AACR 2015 2Reed Tech Announces FDA Lot Distribution Report (LDR) Service for Manufacturers of Biologic Products 2Reed Tech Announces FDA Lot Distribution Report (LDR) Service for Manufacturers of Biologic Products 3SQI Diagnostics to Extend Warrant Expiry 2SQI Diagnostics to Extend Warrant Expiry 3Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 2Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 3Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 4Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 5Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 6
... NANTONG CITY, China, Oct. 21 /PRNewswire-Asia-FirstCall/ -- Sinobiopharma,Inc. (OCT ... present the following highlights from the unaudited financial results ... The highlights feature record revenues and ... Company milestone of posting its first overall net,profitable quarter ...
... plane passengers have not been able to carry bottles of ... airport and others having expensive toiletries confiscated, but work by ... to eliminate this necessary nuisance. Research published ... and Technology explains how a new form of spectroscopy, ...
... German . , More than 120 years after ... Heinrich Hertz, wireless data transmission dominates information technology. Higher and ... shorter periods of time. Some years ago, scientists found that ... far, however, manufacture of the small antennas has required an ...
Cached Biology Technology:Sinobiopharma Presents Highlights from Unaudited First Quarter Financial Results for the 3 Month Period Ended August 31, 2009 2Sinobiopharma Presents Highlights from Unaudited First Quarter Financial Results for the 3 Month Period Ended August 31, 2009 30.2 second test for explosive liquids 2Smallest nanoantennas for high-speed data networks 2Smallest nanoantennas for high-speed data networks 3
...
Indoleamine 2,3-dioxygenase [IDO]...
... [F30 P7 D7 F5] to RYK ... applications). Antigen: ... corresponding to amino acids 462 - ... Entrez Gene ID: 6259 ...
Recognizes the 41 and 43 kDa G-proteins present in liver plasma membranes and Gq/11alpha expressed in the Sf9 insect cell expression system. Negative for recombinant G(I)alpha subtypes....
Biology Products: