Navigation Links
Hot-spring bacteria flip a metabolic switch

Scientists at the Carnegie Institution's Department of Plant Biology have found that photosynthetic bacteria living in scalding Yellowstone hot springs have two radically different metabolic identities. As the sun goes down, these cells quit their day job of photosynthesis and unexpectedly begin to fix nitrogen, converting nitrogen gas (N2) into compounds that are useful for cell growth.

The study, published January 30 in the early online edition of the Proceedings of the National Academy of Sciences, is the first to document an organism that can juggle both metabolic tasks within a single cell at high temperatures, and also helps answer longstanding questions about how hot-spring microbial communities get essential nitrogen compounds.

Carnegie's Arthur Grossman, Devaki Bhaya, and Anne-Soisig Steunou, along with colleagues from four partner institutions*, are studying the tiny, single-celled cyanobacterium Synechococcus. Cyanobacteria evolved about three billion years ago, and are the oldest organisms on the planet that can turn solar energy and carbon dioxide into sugars and oxygen via photosynthesis. In fact, ancient cyanobacteria produced most of the oxygen that allows animals to survive on Earth.

Cyanobacteria such as Synechococcus are often found in the microbial mats that carpet hot springs, where life exists at near-boiling temperatures. These mats are highly organized communities where different organisms split up the work, with cyanobacteria serving as the main photosynthetic power plants. Microbial mats in Yellowstone National Park's Octopus Spring contain Synechococcus that can grow in waters up to around 160°F, while other microbes in the hot spring can tolerate temperatures that exceed 175°F. But until now, it was unclear which organisms could fix nitrogen--especially in the hotter regions of the mat.

"The cyanobacteria are true multitaskers within the mat community," Grossman said. "We had assumed that the single-celled c
'"/>

Source:Carnegie Institution


Page: 1 2 3

Related biology news :

1. Anti-bacterial additive widespread in U.S. waterways
2. A bacterial genome reveals new targets to combat infectious disease
3. Discovery of key proteins shape could lead to improved bacterial pneumonia vaccine
4. Scientists discover that host cell lipids facilitate bacterial movement
5. Family trees of ancient bacteria reveal evolutionary moves
6. Drug-resistant bacteria on poultry products differ by brand
7. Programmable cells: Engineer turns bacteria into living computers
8. NASA links nanobacteria to kidney stones and other diseases
9. Substance protects resilient staph bacteria
10. Physiological effects of reduced gravity on bacteria
11. Anammox bacteria produce nitrogen gas in oceans snackbar
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Hot spring bacteria flip metabolic switch

(Date:9/17/2014)... learned a great deal about complex social behavior by ... something to teach too. , With their unusually large ... parrots live in a complex social environment---not merely in ... or ants, but in a dynamic setting of alliances ... intelligent mammals: dolphins, whales, primates, and social carnivores, like ...
(Date:9/16/2014)... September, 2014)More than $100 trillion in cumulative public ... carbon dioxide (CO2)a 40 percent reduction of urban ... the world expands public transportation, walking and cycling ... by the University of California, Davis, and the ... , Further, an estimated 1.4 million early deaths ...
(Date:9/16/2014)... Ore. -- Each tree species has its own bacterial ... and colleagues from other institutions who studied the genetic ... on a Panamanian island. , "This study demonstrates for ... families and with different ecological strategies possess very different ... W. Kembel, a former postdoctoral researcher in the UO,s ...
Breaking Biology News(10 mins):Being social: Learning from the behavior of birds 2Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 2Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 3Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 4Global shift away from cars saves US$100 trillion, eliminates 1,700 MT of CO2 pollution 5Microbiome research shows each tree species has a unique bacterial identity 2
... up a large fraction of known plant viruses and ... to crop plants throughout the world. New details of ... by scientists using a variety of sophisticated imaging techniques ... and collaborating institutions. These findings, just published in ...
... GSK company focused on discovering and developing small molecule ... 2 Diabetes, announced today that it published a new ... and its potential to treat diseases of aging such ... heart disease. Entitled "SIRTUINS Novel Therapeutic Targets ...
... articles that will be published in the October 2008 ... Community Ecology: A Hybrid Beast with a Molecular Master. ... Thomas D. Bruns. , DNA-based techniques have in recent ... the first time. Results show extremely high diversity and ...
Cached Biology News:Structures of important plant viruses determined 2Structures of important plant viruses determined 3Sirtris' review of sirtuin therapeutics for diseases of aging in Nature Reviews Drug Discovery 2BioScience tip sheet, October 2008 2BioScience tip sheet, October 2008 3
(Date:9/17/2014)... 17, 2014 RXi Pharmaceuticals Corporation (NASDAQ: ... on discovering, developing and commercializing innovative therapies addressing ... that it has been granted a patent by ... its unique delivery system for delivering its "original" ... for the treatment of diseases with an inflammatory ...
(Date:9/17/2014)... Cary, N.C. (PRWEB) September 17, 2014 ... solutions that advances science and healthcare, has renewed its ... term. , As part of the agreement, Personify will ... with a sustained emphasis on recruitment analytics, including time-to-fill, ... decision to renew our agreement with Personify was based ...
(Date:9/17/2014)... , September 17, 2014 ... of action from a truly novel class ... MGB Biopharma, a biopharmaceutical company developing ... today that it has secured £4.0m ($6.4m) ... antibacterial, MGB-BP-3, against a range of Gram-positive ...
(Date:9/17/2014)... Wilmington, DE (PRWEB) September 17, 2014 ... profit organization committed to lowering the barriers to ... has announced the appointment of Carmen Nitsche as ... organization looks to expand its global reach. , ... she was Vice President, Corporate Development. At Accelrys, ...
Breaking Biology Technology:RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 2RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 3RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 4Beckman Coulter Signs 3-year RPO Contract with Personify 2Beckman Coulter Signs 3-year RPO Contract with Personify 3MGB 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 7Pistoia Alliance Expands Business Development with Appointment of Carmen Nitsche 2
... France, October 13 ,Following fulfillment of all the ... all outstanding shares of Satisloh Holding,AG, the world ... and markets antireflective coating units and surfacing,machines, as ... million in revenue in 2007 and employs more ...
... 12 Mentice, Inc., a,leading developer and ... systems and Education Management Solutions, Inc. (EMS), ... software solutions, today,announced at the Transcatheter Cardiovascular ... that enables Mentice to market,MenticeSIM(TM) as a ...
... Cell Therapeutics, Inc.,(CTI) (Nasdaq and MTA: CTIC) announced ... with the NASDAQ Listing Qualifications Panel to present ... 4450(b)(1)(A),which requires a minimum market value of listed ... Letter from The NASDAQ Stock Market LLC,on October ...
Cached Biology Technology:Mentice, Inc. and Education Management Solutions, Inc. Form OEM Partnership 2Mentice, Inc. and Education Management Solutions, Inc. Form OEM Partnership 3Cell Therapeutics to Request a Hearing With NASDAQ Following Receipt of Staff Determination Letter 2Cell Therapeutics to Request a Hearing With NASDAQ Following Receipt of Staff Determination Letter 3
... Printing Kit contains choice of Printing Surface (3 glass ... Ti adhesion layer, 1 silicon wafer coated with 1000 ... plain glass slides) and PDMS Stamps (3 PDMS micropatterned ... or 100 um x 10 mm or 200 um ...
LTBP-1 (E-20)...
Anti-human CD48/BLAST-1, clone MEM102, Monoclonal Antibody...
Recognizes Kir4.1. The epitope does not share homology with any other known proteins.,SPECIES REACTIVITIES: The antibody is also expected to work with mouse and human due to sequence homology. Oth...
Biology Products: