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:9/30/2014)... know what goes wrong with your muscles because of age, ... "normal" actually is. That,s where a new research report published ... Journal comes in. In the report, a team ... that can help scientists "see" which genes are active in ... never-before-detected gene activity and that men have approximately 400 more ...
(Date:9/30/2014)... release is available in German . ... their behavioural response to risky situations such as exposure ... Ornithology now found in a long-term study on different ... both metabolic rate and ambient temperature. High metabolic rates ... as in these scenarios birds were more likely to ...
(Date:9/30/2014)... a suite of perilous threats in today,s ocean. ... climate change, fragile coral ecosystems are disappearing at ... some species of corals surrounding the island of ... in their tropical environment: coral guard-crabs. New research ... Marine Station scientist Seabird McKeon and the museum,s ...
Breaking Biology News(10 mins):Scientists identify which genes are active in muscles of men and women 2Risky metabolism 2Smithsonian scientists discover coral's best defender against an army of sea stars 2
... , Jan. 24, 2013 /PRNewswire-iReach/ -- The companion diagnostics ... has become one of the most promising areas within ... companies are now entering the highly attractive market of ... developing a combination product. The explosive M&A trend in ...
... their mother,s diet during gestation and lactation were found to ... than those not exposed to the chemical, researchers at the ... BPA is a chemical most commonly found in the lining ... in many hard plastic bottles, including baby bottles, but many ...
... Researchers at the University of Pittsburgh School of ... key HIV protein. In findings published online today in ... this vulnerable spot could stop the virus from replicating, ... Previous research demonstrated that a small HIV protein ...
Cached Biology News:Global Companion Diagnostic Market Worth $19.3 billion by 2023: What it Takes to Become a Major Companion Diagnostic Player 2Global Companion Diagnostic Market Worth $19.3 billion by 2023: What it Takes to Become a Major Companion Diagnostic Player 3Global Companion Diagnostic Market Worth $19.3 billion by 2023: What it Takes to Become a Major Companion Diagnostic Player 4Global Companion Diagnostic Market Worth $19.3 billion by 2023: What it Takes to Become a Major Companion Diagnostic Player 5Female mice exposed to BPA by mothers show unexpected characteristics 2Female mice exposed to BPA by mothers show unexpected characteristics 3Pitt team finds 'Achilles Heel' of key HIV replication protein 2
(Date:10/1/2014)... 30, 2014 In response to ... to address sales, training and consumer engagement challenges, ... innovative mobile applications to turn their clients’ visions ... latest customized mobile app creations, are now featured ... In partnership with Toyota, StudioPMG created a robust ...
(Date:10/1/2014)... The U.S. Department of Labor has ... Edwardsville as part of the Trade Adjustment Assistance Community ... co-administered by the Department of Labor and Department of ... Thomas E. Perez and Secretary of Education Arne Duncan ... grants to nearly 270 colleges across the country. ...
(Date:9/30/2014)... available in German . ... Mnchen (TUM) have demonstrated a new kind of building ... future computer chips could be based on three-dimensional arrangements ... enabling technology of the semiconductor industry CMOS fabrication ... researchers and collaborators at the University of Notre Dame ...
(Date:9/30/2014)... Sept. 30, 2014 Nematicide is a ... Nematodes are microscopic parasitic roundworms, found in massive ... other plants and animals. Nematicides have tended to ... properties promoting migration through the soil. A single ... plant-parasitic nematodes. With more than 10,000 species classified, ...
Breaking Biology Technology:Digital Agency Studio PMG Launches New Case Studies on Website 2U.S. Dept. of Labor Awards SIUE Nearly $10-Million Grant 2U.S. Dept. of Labor Awards SIUE Nearly $10-Million Grant 3U.S. Dept. of Labor Awards SIUE Nearly $10-Million Grant 4A new dimension for integrated circuits: 3-D nanomagnetic logic 2A new dimension for integrated circuits: 3-D nanomagnetic logic 3Nematicides Market by Types (Fumigants, Organophosphates, Carbamate and Bio-Nematicides), Applications (Agrochemicals, Industrial, and Others), and Geography (North America, Europe, Asia-Pacific & ROW) - Global Trends & Forecasts to 2019 2
... Calif. and MONROVIA, Calif., Jan. 6, 2011 Amgen ... today that they will collaborate to develop XmAb ® ... and CD32b.  XmAb5871 is currently in late-stage preclinical development ... Under the terms of the agreement, Amgen has the ...
... SAN FRANCISCO, Jan. 6, 2011 Vista Partners ... Therapeutics, Inc. (Nasdaq: OPXA ) and raised ... Silver, Principal Analyst at Vista Partners stated, "Opexa announced yesterday ... for the treatment of Multiple sclerosis , is now ...
... 6, 2011 BioInformatics, LLC announces the release of ... Technologies:  Market Insights for Life Science Suppliers (#10-005) This ... respond in a timely fashion to the rapidly changing ... LLC quantifies and characterizes the market for genetic analysis ...
Cached Biology Technology:Amgen and Xencor Enter Option Deal to Co-Develop Xencor's Novel Antibody for Autoimmune Diseases 2Amgen and Xencor Enter Option Deal to Co-Develop Xencor's Novel Antibody for Autoimmune Diseases 3Vista Partners Updates Coverage on Opexa Therapeutics, Inc.; Raises Target Price From $4.40 to $6.50 2BioInformatics, LLC New Market Report - Genomics Technologies 2
Mouse monoclonal antibody to ALAS2 - aminolevulinate, delta-, synthase 2 (sideroblastic/hypochromic anemia)...
Mouse monoclonal antibody to PDK2 - pyruvate dehydrogenase kinase, isoenzyme 2...
Mouse monoclonal antibody raised against a partial recombinant FBXO24. NCBI Entrez Gene ID = FBXO24...
Mouse polyclonal antibody raised against a partial recombinant WRB. NCBI Entrez Gene ID = 7485...
Biology Products: