Navigation Links
Scientists discover animal-like urea cycle in tiny diatoms in the ocean
Date:5/11/2011

Scientists have discovered that marine diatoms, tiny phytoplankton abundant in the sea, have an animal-like urea cycle, and that this cycle enables the diatoms to efficiently use carbon and nitrogen from their environment.

The researchers, from the J. Craig Venter Institute (JCVI) and other institutions, published their findings in this week's issue of the journal Nature.

The team, led by lead author Andrew Allen from JCVI and co-author Chris Bowler, Institute of Biology, Ecole Normale Suprieure, Paris, believes that the cycle could be a reason for the domination of diatoms in marine environments, especially after upwelling events--the upward movement of nutrient rich waters from the deep ocean to the surface.

In response to ocean upwelling, diatoms are able to quickly recover from prolonged periods of nutrient deprivation and rapidly proliferate.

"This study provides fascinating insights into how diatoms have evolved to become the dominant primary producers in many ocean regions," says David Garrison, program director in the National Science Foundation's (NSF) Division of Ocean Sciences, which funded the research along with NSF's Division of Molecular and Cellular Biosciences.

Diatoms have unique cell walls made of silica. They are key organisms for understanding the environmental health of marine ecosystems, and are responsible for much of the carbon and oxygen production in the ocean.

Diatom photosynthesis in ocean environments is also responsible for about one fifth of the oxygen in the atmosphere.

In previous research, Allen, Bowler and colleagues sequenced the genome of the first pennate diatom, Phaeodactylum tricornutum.

In that research, they developed new methods for determining the origin of diatom genes. They also looked at nutrient metabolism in diatoms, beginning with iron metabolism.

Building on that work, Allen and colleagues explored the evolutionary history
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Smithsonian scientists report changes in vegetation determine how animals migrate
2. Johns Hopkins scientists reveal nerve cells navigation system
3. BC scientists link to European Consortium studying human genome
4. Antibodies help protect monkeys from HIV-like virus, NIH scientists show
5. More than 20 percent of atheist scientists are spiritual
6. Scientists sequence genomes of 2 major threats to American food and fuel
7. Hitting target in cancer fight now easier with new nanoparticle platform, UCLA scientists say
8. UCSF scientists honored by National Academy of Sciences
9. Weizmann Institute scientists discover: A protein that contributes to obesity
10. Scientists track evolution and spread of deadly fungus, one of the worlds major killers
11. Scripps Research scientists create new genetic model of premature aging diseases
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists discover animal-like urea cycle in tiny diatoms in the ocean
(Date:9/30/2014)... (PCE) in drinking water may increase the risk ... new study led by a Boston University School ... in the journal Environmental Health , compared ... 1,766 women in Cape Cod, Ma., where water ... early 1980s by the installation of vinyl-lined asbestos ...
(Date:9/30/2014)... FRANKFURT. Truffles, along ... world. Because they grow underground, people use trained dogs or ... is not only of interest to gourmets. A group of ... University Frankfurt have discovered that the smell of white truffles ... truffle fruiting bodies. , White truffles from the Piedmont region ...
(Date:9/30/2014)... Researchers of Ludwig-Maximilians-Universitaet (LMU) in Munich report that ... cells more sensitive to chemotherapeutic drugs. They have ... a new target for anti-tumor agents. , ... Professor Stephan Sieber of the Technische Universitt Mnchen ... a potential new weapon in the fight against ...
Breaking Biology News(10 mins):Contaminated water linked to pregnancy complications, BU study finds 2On the trail of the truffle flavor 2Cancer therapy: Driving cancer cells to suicide 2
... minds about the head size of an ancient human ancestor, ... may have been. Found in Gona, Ethiopia, not far from ... of the famed Australopithecus afarensi "Lucy," the pelvis indicates that ... ago, had a larger birth canal than originally suspected and ...
... , 2008 Arbor Vita Corporation (AVC), a ... its rapid, point-of-care prototype HPV test with a high ... for use throughout the developing world, this diagnostic test ... presentation, "Development of a Rapid Diagnostic Test for Cervical ...
... to make cancer treatment safer A new piece ... (NPL) today will help improve the success rates of ... (linac) will help ensure patients are treated with accurate ... using ionising radiation such as high-energy X-rays or electron ...
Cached Biology News:Arbor Vita presents new data on cancer diagnostic at EUrogin 2NPL unveils new equipment to make cancer treatment safer 2
(Date:10/1/2014)... (PRWEB) October 01, 2014 Weighing ... quality of the final product. However, while the ... regulatory frameworks such as Good Manufacturing Practices (GMP) ... responsibility of the manufacturer to interpret these guidelines ... weighing performance quality. METTLER TOLEDO experts have created ...
(Date:10/1/2014)... The participants committed to not only creating ... own time adjusting, tweaking and testing virtual models and ... for judging. , “I enjoyed being involved as a ... “The entries showed a commendable range exploring the technical ... print medium and the creativity of the contestants.” , ...
(Date:10/1/2014)... September 30, 2014 Award winning ... announces four new-hosted collaboration bundles that combine ... high quality conferencing experiences for low, flat rate ... choose from, businesses have optimized solutions to meet ... include audio only minutes (1K, 5K, 10K ...
(Date:10/1/2014)... -- This report analyzes the worldwide markets ... the following Product Segments: Proteases, Polymerases, Carbohydrases, ... also analyzed are Pharmaceuticals & Diagnostics, Research/Biotechnology, ... separate comprehensive analytics for the US, Canada, ... America. Annual estimates and forecasts are provided ...
Breaking Biology Technology:Comply with Weighing-Related Regulations in Pharma Manufacturing 2Array Architects Challenges Staff to Create with 3D Printer 2SoundConnect Launches New Audio, Web and Video Bundles 2Global Specialty Enzymes Industry 2Global Specialty Enzymes Industry 3Global Specialty Enzymes Industry 4Global Specialty Enzymes Industry 5Global Specialty Enzymes Industry 6Global Specialty Enzymes Industry 7Global Specialty Enzymes Industry 8Global Specialty Enzymes Industry 9Global Specialty Enzymes Industry 10Global Specialty Enzymes Industry 11Global Specialty Enzymes Industry 12Global Specialty Enzymes Industry 13Global Specialty Enzymes Industry 14Global Specialty Enzymes Industry 15Global Specialty Enzymes Industry 16Global Specialty Enzymes Industry 17Global Specialty Enzymes Industry 18Global Specialty Enzymes Industry 19Global Specialty Enzymes Industry 20Global Specialty Enzymes Industry 21Global Specialty Enzymes Industry 22Global Specialty Enzymes Industry 23Global Specialty Enzymes Industry 24Global Specialty Enzymes Industry 25Global Specialty Enzymes Industry 26
... WASHINGTON, Oct. 5 The Coalition for a,Competitive ... the Food and Drug Administration,s announcement regarding its,"Generic ... consumers, employers, insurers, and policymakers grappling with,how to ... that FDA,and Congress continue to focus on ways ...
... Lexicon,Pharmaceuticals, Inc. (Nasdaq: LXRX ) today announced that ... officer, will present,at the BIO InvestorForum at The Palace ... at 11:00 a.m. Pacific Time. A live webcast ... at http://www.lexpharma.com . An archived version of the,webcast ...
... Pharmasset, Inc.,(Nasdaq: VRUS ) has entered into ... Subject to certain terms and conditions of,the agreement, Horizon ... At its option, Pharmasset may receive a second loan ... loan of $10 million by November 30, 2008,provided conditions ...
Cached Biology Technology:CCPM Issues Statement on FDA's GIVE Initiative 2Lexicon Pharmaceuticals to Present at Bio InvestorForum 2Pharmasset Accesses up to $30 Million of Working Capital 2Pharmasset Accesses up to $30 Million of Working Capital 3
... you reduce the chance of error. Thats ... Developed using Beckman Coulters extensive experience in ... technology, the CEQ 8000 is a fully ... fills the capillary array with a patented ...
... Chemicon Detergent-OUT Kit is a simple high ... solutions. Removes detergents without significant dilution ... protein solution on the Detergent-OUT Spin column ... columns are suitable for removing detergent from ...
... The standard electrophoresis hood is ... documentation systems. Placed on the ... in place and provides a ... on the lab bench. This ...
... SDS Kit is a simple high performance ... Removes detergents without significant dilution of ... solution on the Detergent-OUT Spin column and ... columns are suitable for removing detergent from ...
Biology Products: