Navigation Links
Mysterious microbe may play important role in ocean ecology
Date:11/13/2008

led rapid sequencing of the organism's genome. The results showed that it is missing the entire set of genes needed for photosystem II and carbon fixation, essential parts of the molecular machinery that carries out photosynthesis in plants and cyanobacteria.

"That has multiple implications," Zehr said. "It must have a 'lifestyle' that's very different from other cyanobacteria. Ecologically, it's important to understand its role in the ecosystem and how it affects the balance of carbon and nitrogen in the ocean."

During photosynthesis, photosystem II generates oxygen by splitting water molecules. Because oxygen inhibits nitrogen fixation, most nitrogen-fixing cyanobacteria only fix nitrogen at night, or do it in specialized cells. The lack of photosystem II enables the new microbe to fix nitrogen during the day, Zehr said.

But without photosynthesis, it can't take carbon dioxide from the atmosphere and convert it into sugars. So it's not clear how the new microbe feeds itself. Either it has some way of feeding on organic matter in its environment, or it lives in close association with other organisms that provide it with food, Zehr said.

"It would make a perfect symbiont because it could feed nitrogen to its host and live on the carbon provided by the host," he said.

Zehr's team was able to obtain a mostly pure sample of these unique cyanobacteria using a flow cytometer--a device that rapidly sorts individual cells based on size and color. The flow cytometer can take the cell soup from an ocean sample, classify each cell as it passes through laser beams, and sort different cell types into separate containers. A cell type that makes up a small percentage of the original sample can be concentrated to nearly pure levels using flow cytometry.

The team harvested DNA from the concentrated sample of cyanobacteria and sequenced it using the Genome Sequencer FLX system from 454 Life Sciences. The company's new sequenc
'/>"/>

Contact: Tim Stephens
stephens@ucsc.edu
831-459-2495
University of California - Santa Cruz
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. UCSF researchers identify virus behind mysterious parrot disease
2. Mysterious mountain dino may be a new species
3. ESF conference probes waters mysterious interactions at molecular level
4. Biochemists reveal details of mysterious bacterial microcompartments
5. Study helps clarify role of soil microbes in global warming
6. Biosolids microbes pose manageable risk to workers
7. New Systems Biology Awards enable detailed study of microbes
8. Wielding microbe against microbe, beetle defends its food source
9. NSF approves $1.3M for OSU and OU microbes hunt
10. Cataloguing invisible life: Microbe genome emerges from lake sediment
11. Analysis of Lake Washington microbes shows the power of metagenomic approaches
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/17/2014)... PROVIDENCE, R.I. [Brown University] After decades of decline, ... Cod,s saltmarshes. To the eye, the marsh in those ... clear that a key service of the marsh ... aesthetics back but the ecosystem function hasn,t come back," ... and senior author of the study in the journal ...
(Date:9/17/2014)... KNOXVILLEScience has learned a great deal about complex social ... might have something to teach too. , With their ... advanced cognition, parrots live in a complex social environment---not ... as bees or ants, but in a dynamic setting ... the most intelligent mammals: dolphins, whales, primates, and social ...
(Date:9/16/2014)... women in Australia is increased by lower socioeconomic ... September) in BJOG: An International Journal of ... high standards of living; however, existing research has ... indigenous and non indigenous Australians. , This case-control ... socioeconomic position on severe maternal morbidities associated with ...
Breaking Biology News(10 mins):Cape Cod saltmarsh recovery looks good, falls short 2Cape Cod saltmarsh recovery looks good, falls short 3Being social: Learning from the behavior of birds 2New study examines the impact of socioeconomic position & maternal morbidity in Australia 2New study examines the impact of socioeconomic position & maternal morbidity in Australia 3
... sediments laid down shortly after an asteroid plowed into the ... is linked to widespread global extinctions including the demise of ... first fauna to show themselves following the global catastrophe. ... is often on the survival and proliferation of mammals, paleo-botanical ...
... The Dow Chemical Company has awarded UC Santa ... research initiative that will help shape the future of ... Materials Institute at UCSB will educate future scientists and ... with applications that range from novel polymers to next-generation ...
... Assigning environment-related legal cases to specialized tribunals, courts ... experts convene in Malaysia for a two-day United Nations ... and governance systems and sustainable development. High court ... country,s Supreme Court to ensure judges have the expertise ...
Cached Biology News:Worms among first animals to surface after K-T extinction event, CU-led study finds 2Worms among first animals to surface after K-T extinction event, CU-led study finds 3UCSB awarded $15 million by Dow to establish collaborative institute for materials research and education 2UCSB awarded $15 million by Dow to establish collaborative institute for materials research and education 3Specialized courts for environment cases among proposals as law experts mull green governance 2Specialized courts for environment cases among proposals as law experts mull green governance 3Specialized courts for environment cases among proposals as law experts mull green governance 4Specialized courts for environment cases among proposals as law experts mull green governance 5
(Date:9/17/2014)... -- BioClinica®, Inc., a leading provider of outsourced clinical ... its experts are speaking at the 20th Annual ... held September 28 to October 1 in ... the innovative Compass technology, a risk-based monitoring ... earlier this year, is up for the Technology ...
(Date:9/17/2014)... PITTSBURGH , Sept. 17, 2014 ... maker of MD-Cu 29 antimicrobial copper, announces Gilmour ... points to the first EPA-registered antimicrobial solid touch surface ... copper is a reasonably priced surface that kills greater ... 2 hours of exposure. 1 ...
(Date:9/17/2014)... MARLBOROUGH, Mass. , Sept. 17, 2014 /PRNewswire/ ... ), a biotechnology company focused on discovering, developing ... needs using RNA-targeted technologies, today announced that it has ... Patent and Trademark Office on its unique delivery ... ® ) to phagocytic cells for the treatment ...
(Date:9/17/2014)... 2014 First antibacterial ... a truly novel class of anti-infective in ... a biopharmaceutical company developing a truly novel ... has secured £4.0m ($6.4m) to advance the ... a range of Gram-positive infections including  Clostridium ...
Breaking Biology Technology:BioClinica to Present at 20th Annual SCDM Conference 2BioClinica to Present at 20th Annual SCDM Conference 3Innovative Gilmour Academy Ice Arena changes more than 200 fixtures to Hussey Copper's MD-Cu29 antimicrobial copper to help protect against bacteria 2Innovative Gilmour Academy Ice Arena changes more than 200 fixtures to Hussey Copper's MD-Cu29 antimicrobial copper to help protect against bacteria 3RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 2RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 3RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 2MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 3MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 5MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 6MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 7
... Nektar Therapeutics,(Nasdaq: NKTR ) will announce ... December 31, 2008 on Wednesday, February 25, 2009, after ... and chief executive,officer, will host a conference call to ... p.m. Pacific Time (PT). , ...
... Feb. 11 XTL,Biopharmaceuticals Ltd. (Nasdaq: XTLB ... Mr. Boaz Shweiger have been appointed to XTL,s Board ... also be assuming,the role of Co-Chief Executive Officer, with ... alternatives. , Ron Bentsur, Co-Chief ...
... ARLINGTON, Va., Feb. 11 Scientists engaged in biological ... in their 2009 lab budgets. BioInformatics, LLC ( ... the life science market, has released preliminary data from ... Down Market: Strategies for Life Science Suppliers. In ...
Cached Biology Technology:Nektar to Announce Year-End 2008 Financial Results on Wednesday, February 25, 2009 After Close of U.S.-Based Financial Markets 2XTL Biopharmaceuticals Announces Appointment of David Grossman and Boaz Shweiger to Board of Directors 2XTL Biopharmaceuticals Announces Appointment of David Grossman and Boaz Shweiger to Board of Directors 3Life Science Labs Reacting to the Economic Crisis 2
... is a member of a nuclear ... that heterodimerize with retinoic acid-like receptor ... regulation of glucose and lipid metabolism. ... anti-diabetic agents called thiazolidinediones (TZD) or ...
... Preparation Reconstitution: one vial contains ... ficoll and 50 mg PVP; ... water yields a 50concentrate Special ... 1.00 g/mL (20 C) Quality ...
... Antibody Capture Kit eliminates ... optimization steps typically required ... This kit enables the ... multiple antigens based on ...
... This CLS number is a new ... Cornings product number. If showing no ... old Sigma-Aldrich number (R4276) or contact ... cap polystyrene (expanded surface, easy grip) ...
Biology Products: