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:11/21/2014)... , Nov. 20, 2014   Atmel® Corporation ... microcontroller (MCU) and touch technology solutions, today launched the ... with the widest V cc range from ... accuracy and faster I 2 C bus communication speeds, ... EEPROM memory making them ideal for consumer, industrial, computer, ...
(Date:11/18/2014)... BETHESDA, Md. , Nov. 17, 2014 The ... European and U.S. regulatory agencies will speak and at least ... Quality Metrics Conference at the Omni Shoreham Hotel in ... is pleased once again to have significant support from the ... and Europe in our effort to ...
(Date:11/12/2014)... Nov. 12, 2014 Crossmatch™, a leading provider ... U.are.U ® fingerprint readers have been deployed throughout ... Central Mexico . The bakery chain implemented ... payroll issues caused by employees clocking in for each ... fingerprint readers, Montparnasse relied on paper timecards and a ...
Breaking Biology News(10 mins):Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 2Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 3Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 4FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Montparnasse Pasteleria Achieves Time and Attendance Transparency with Crossmatch U.are.U Fingerprint Readers 2
... M.D., director of the National Institute of Allergy and Infectious ... been awarded the 2007 Mary Woodard Lasker Award for Public ... health programs, in AIDS and biodefense. The award will be ... New York City. , Dr. Fauci is honored for his ...
... in conjunction with the National Evolutionary Synthesis Center, will ... 1, 2007, at the Hyatt Regency Hotel in Atlanta, ... and Populations, is part of the 2007 Professional Development ... The aim of the symposium is ...
... National Institutes of Health has awarded one of 12 ... a team based at the University of Chicago Medical ... 2006, form the core of an NIH effort to ... "transform how clinical and translational research is conducted," ultimately ...
Cached Biology News:Anthony S. Fauci awarded Lasker Award for Public Service 2Anthony S. Fauci awarded Lasker Award for Public Service 3Anthony S. Fauci awarded Lasker Award for Public Service 4AIBS to cohost symposium on evolution, disease and human health 2AIBS to cohost symposium on evolution, disease and human health 3AIBS to cohost symposium on evolution, disease and human health 4NIH awards nearly $23M to University of Chicago for translational research 2NIH awards nearly $23M to University of Chicago for translational research 3NIH awards nearly $23M to University of Chicago for translational research 4
(Date:12/19/2014)... LayerBio is an MIT spin-off developing novel drug ... Eye Institute (NEI) at the National Institutes of Health ... to develop a drug-eluting intraocular lens (IOL) for cataract ... vision loss in people over age 40 and the ... Mandell, LayerBio’s Founder and CEO, "There is a critical ...
(Date:12/19/2014)... In contrast to traditional LED lights where the spectrum ... proprietary LED technology to incorporate their spectra in a ... critical in low proximity installations. The Valoya L-series offers ... which is up to four times longer than commonly ... was clearly higher when compared to traditional fluorescent or ...
(Date:12/19/2014)... MILLBROOK, N.Y. , Dec. 18, 2014 Egenix, ... has been elected Chairman of the Board, to succeed ... President and CEO, but will continue as a member of ... that he has added to the company over almost twenty ... The Board of Directors has established a Search ...
(Date:12/17/2014)... Based on the revenues gained from ... is dominated by four major players contributing to ... players include GE Healthcare (U.K.), Siemens AG (Germany), ... Full Report Copy at http://www.marketsandmarkets.com/Market-Reports/surgical-imaging-market-210534462.html , ... attributed to its strong product portfolio, which includes ...
Breaking Biology Technology:LayerBio Awarded NIH Grant to Develop a Drug Delivery Device for Cataract Surgery 2Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 2Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 4
... in a lab dish to the steroid DHEA, exhibit a ... play a role in helping the brain produce new cells, ... online editions of the Proceedings of the National Academy of ... of scientists at the University of Wisconsin-Madison, provides some of ...
... , a data quality solutions provider, announced today ... Information Quality Suite to work with Oracle Warehouse ... intelligence integration design tool that manages data lifecycles. ... intelligence application and customize the way data quality ...
... Inc. announced Tuesday that its genetic analysis ... chromosomal analysis, opening a new market to the ... extension of the Invader technology, Madison-based Third Wave ... (ASRs) for prenatal chromosomal analysis to the University ...
Cached Biology Technology:DHEA Boosts Growth Rate of Human Neural Stem Cells 2DHEA Boosts Growth Rate of Human Neural Stem Cells 3