Navigation Links
Ammonia-loving archaea win landslide majority

A genetic analysis of soil samples indicates that a group of microorganisms called crenarchaeota are the Earth's most abundant land-based creatures that oxidize ammonia, according to an international team of researchers from Norway, Germany, United Kingdom and the United States.

Soil microbes, in a process known as nitrification, combine ammonia with oxygen to form nitrates, which are used as nutrients by plants.

"Ammonia oxidation is an important step in the nitrogen cycle that was believed for the last 100 years to be solely performed by bacteria," says Christa Schleper, full professor of Molecular biology of Archaea at University Bergen, Norway.

The discovery was made possible by a combination of different techniques ranging from molecular biology, biochemistry to metagenomics. Using a novel sequencing technique and bioinformatics tools, Stephan C. Schuster, associate professor of biochemistry and molecular biology at Penn State, and his co-workers accurately measured the quantities of active bacteria and archaea in the complex mixtures of soil organisms. The international research team reports their findings in today's (Aug. 17) issue of Nature.

Archaea are single-celled microbes that, along with bacteria, comprise a category of small organisms whose genetic material, or DNA, is not stored in a nucleus (as it is in animals and plants). Crenarchaeota, which belong to the archaea, are found in various habitats, including soil.

"We think crenarchaeota in soil gain their energy from oxidizing ammonia," said Schuster. "But we don't know yet if they can also gain energy by other means. The bacterial counterparts can only do ammonia (and urea) oxidation, nothing else."

During a recent study of a collection of genes in microorganisms, researchers had stumbled on a particular gene, which is responsible for the production of a key enzyme used for the oxidation of ammonia.

The gene was subseque
'"/>

Source:Penn State


Page: 1 2 3

Related biology news :

1. DOE JGI releases IMG 1.5 with curated archaeal genomes
2. From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Ammonia loving archaea win landslide majority

(Date:1/22/2015)... , Jan. 22, 2015 Infinisource has launched its ... the G2 model. The G2 sets a higher standard for ... human capital management solution. With plug-and-play installation, touch screen interface ... clock provides a robust time collection solution for the small ...
(Date:12/19/2014)... and Markets ( http://www.researchandmarkets.com/research/8kmfcn/iphone_5s ) has announced ... - Apple/AuthenTec TMDR92 & Sapphire - Technology Report" ... http://photos.prnewswire.com/prnh/20130307/600769 Following the acquisition of AuthenTec ... with the iPhone 5S. It is currently the only ...
(Date:12/17/2014)... , Dec. 15, 2014 The Defense Logistics ... to detect and prevent counterfeit microcircuits from entering into ... performing an in-house microcircuit anti-counterfeit initiative dubbed DNA marking. ... while increasing their reliability throughout the supply chain. The ...
Breaking Biology News(10 mins):Infinisource's NXG series sets new time clock standard 2iPhone 5S Fingerprint Sensor - Apple/AuthenTec TMDR92 & Sapphire - Technology Report 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3
... animals such as schooling fish, the loss of their ... according to a finding that such animals rely heavily ... University researchers report in the journal Science ... to evaluate and respond to their environment. Conducted on ...
... ACS Nano published a study by Ali ... biomedical engineering at Brigham and Women,s Hospital, detailing the ... enhance the conductivity of materials to induce cardiac tissue ... a step closer to durable, high-functioning artificial tissues that ...
... ancestor or the grassland encroaching on the forest? A ... change in the cradle of humanity is challenging long-held beliefs ... and, by extension, the impact it had on them. ... from plant leaves with pollen analysis, yielding data of unprecedented ...
Cached Biology News:The effective collective: Grouping could ensure animals find their way in a changing environment 2The effective collective: Grouping could ensure animals find their way in a changing environment 3New Geology study raises questions about long-held theories of human evolution 2
(Date:1/23/2015)... Portal Solutions , a technology consulting ... Microsoft Office 365 and SharePoint platforms , today announces its ... being one of the region’s fastest-growing mid-sized companies based on ... , “To be recognized a second year in a row ...
(Date:1/22/2015)... GEA Niro Soavi the leader in high ... PandaPLUS 2000, which is ideal for new applications for ... disruption . This compact laboratory homogenizer is the perfect ... food additives and ingredients as well as for the ...
(Date:1/22/2015)... Johnston, RI (PRWEB) January 22, 2015 ... State , The growing team of brand-neutral, independent consultants, ... CIO Philip Rogers explained that over the years, his ... including , Moroso, Town of Plainfield, as well as ...
(Date:1/22/2015)... Dr. Greg Leyer of UAS Labs recently was ... Pre-Conference seminar on probiotics in San Diego, CA. , ... conference for health care professionals. This year’s pre-conference seminar was ... in health. Dr. Leyer spoke about the emerging topics and ...
Breaking Biology Technology:Washington SmartCEO Announces Portal Solutions as 2015 Future 50 Award Winner Second Year in a Row 2Washington SmartCEO Announces Portal Solutions as 2015 Future 50 Award Winner Second Year in a Row 3GEA Niro Soavi Announces the PandaPLUS 2000 Homogenizer for Processing New Applications for Nanoemulsions and Cell Disruption 2Protocol Networks Brings Independent Technology Consulting to the Constitution State 2
... , , , , , Multiporator , , , ... Transfection Protocol , Protocol No. 4308 915.020 11/1999 , ... , , , , , ... line), , , ...
... , , Multiporator , , , , , , ... Transfection Protocol , Protocol No. 4308 915.024 11/2001 , , ... , , , Cell ... line), , , ...
... , Multiporator / Electroporator 2510 , , , , , , ... Protocol , Protocol No. 4308 915.513 04/2002 , , ... , , Microorganism , ... Cell type , Bacteria, gram negative, ...
Cached Biology Technology:Jurkat 2Jurkat 3H73C11 2H73C11 3Escherichia coli DH10B 2Escherichia coli DH10B 3
... Mouse monoclonal [APS 26] to Presenilin 2 ... inherited form of the disease carry mutations ... the amyloid precursor protein (APP). These disease-linked ... longer form of amyloid-beta (main component of ...
One-step, microplate or cuvet, colorimetric, linear detection range 0.9 mg/dL to 200 mg/dL. Procedure: 2 min....
...
One-step, microplate or cuvet, colorimetric, detection range 0.1 mg/dL to 3 mg/dL. Procedure: 10 min....
Biology Products: