Navigation Links
Marine bacteria's mealtime dash is a swimming success
Date:3/10/2008

t Dana Hunt and Associate Professor Martin Polz all of MIT, and Assistant Professor Azadeh Samadani of Brandeis University.

The researchers were able to prove the behavior of P. haloplanktis by recreating a microcosm of the bacterias ocean environment using new technology called microfluidics. Microfluidics consists of patterns of minute channels engraved in a clear rubbery material and sealed with a glass slide. The researchers injected bacteria and nutrients into the microchannels at specific locations and, using video-microscopy, recorded the bacteria as they foraged on two simulated food sources: a lysing algal cell that creates a sudden explosion of dissolved nutrients, and the small nutrient plume trailing behind particles that sink in the ocean.

The question of whether the bacteria could or couldnt put their swimming skills to use in this race against time has generated considerable interest in the scientific community over the past decade, because theres a great deal riding on P. haloplanktis and their relatives ability to reach these nutrients and recycle them for other animals in the food web.

Scientists who study Earths carbon cycle know that accounting for all the organic matter in the marine food web is critical, including the matter that exists in these tiny, discrete nutrient patches bacteria feed on. In fact, the carbon in those patches is so important that some scientists believe marine bacterias capacity to utilize it will determine whether the oceans become a carbon sink or source during global warming.

Until 25 years ago, scientists werent really aware of the microbial loop, the processing of organic material among the smallest creatures in the ocean: bacteria, phytoplankton, nanozooplankton, viruses, etc. Now they know that the roughly 1 million bacteria per milliliter of ocean play a pivotal role in the microbial loop; by recycling that organic matter, they pass it on to larger animals and prevent it from
'/>"/>

Contact: Denise Brehm
brehm@mit.edu
617-253-8069
Massachusetts Institute of Technology, Department of Civil and Environmental Engineering
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. International team announces discovery of massive Jurassic marine reptile
2. Can Dungeness crab and eelgrass help improve management of our marine resources?
3. Genome of marine organism tells of humans unicellular ancestors
4. First map of threats to marine ecosystems shows all the worlds oceans are affected
5. Worlds largest marine protected area created in Pacific Ocean
6. 2008 Pew Fellowship in Marine Conservation awarded to Dr. Marie-Joëlle Rochet from IFREMER
7. 2008 Pew Fellowship in Marine Conservation awarded to Fan Meng; first Chinese fellow
8. 2008 Pew Fellowship in Marine Conservation awarded to Dr. Ussif Rashid Sumaila
9. Dr. Andrew Constable awarded 2008 Pew Fellowship in marine conservation
10. 2008 Pew Fellowship in marine conservation awarded to UM Rosenstiels Dr. Andrew Baker
11. Pew Institute for Ocean Science awards 5 fellowships in support of global marine conservation
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Marine bacteria's mealtime dash is a swimming success
(Date:10/15/2014)... from strains of influenza virus increases with the latest ... complacent that the most substantial threats have been identified, ... arise when a new virus strain – against which ... in the human population. There have been five such ... which – the 1918 Spanish Flu – cost 50 ...
(Date:10/15/2014)... pneumonia in female mice to an enzyme activated by ... more resistant to respiratory infections than males. Now, an ... to bacterial pneumonia in female mice is linked to ... show that this enzyme is ultimately activated by the ... team, lead by Professor Lester Kobzik at the Harvard ...
(Date:10/14/2014)... Like discriminating thieves, prostate cancer tumors scavenge and hoard ... But such avarice may be a fatal weakness. ... to kill prostate cancer cells by delivering a trove ... the diseased cells brimming with the mineral, leaving non-cancer ... drugs already commercially available for other uses, could soon ...
Breaking Biology News(10 mins):Scientists 'must not become complacent' when assessing pandemic threat from flu viruses 2Prostate cancer's penchant for copper may be a fatal flaw 2
... the competition between native and invasive plants growing in deciduous ... the plants cross the finish line in autumn., A new ... leaves of invasive plants continue to function in the fall, ... winter. The findings are counter to conventional wisdom, which held ...
... at the upper end of the typical pain scale ... intensity, pain is debilitating. Yet many sufferers do not ... and commonly prescribed pain medications. Recently, a team ... of biomedical engineering in CCNY,s Grove School of Engineering, ...
... from the IPM in Tehran and the University of Cambridge, ... of disordered, frozen electric charges can make a difference when ... charges induce a twisting force that is strong enough to ... These results, about to be published in EPJ E (1), ...
Cached Biology News:Syracuse University study finds autumn advantage for invasive plants in eastern United States 2Syracuse University study finds autumn advantage for invasive plants in eastern United States 3Technology eases migraine pain in the deep brain 2
(Date:10/18/2014)... October 18, 2014 The Biomass ... in the five years to 2014. The industry's expansion ... energy tax credits that encouraged the use of biomass ... portfolio standards (RPSs), which require local utilities to generate ... total energy portfolio. Increased campaigning for green technology also ...
(Date:10/18/2014)... 2014 The report " Cloud ... Text; Web; Speech; Machine; Video; Predictive Analytics: Global ... Forecasts & Analysis (2013 - 2018) ", defines ... various sub segments with an in-depth analysis and ... the factors driving this market, various restraints, and ...
(Date:10/17/2014)... received a $451,781 Air Force Office of Scientific Research ... and nano-scale level that will provide clues for predicting ... and Aerospace Engineering, said the new technology and process ... of an aircraft,s wing., "We,ll be able to determine ... at it on this scale," Huang said. "Certain patterns ...
(Date:10/17/2014)... and HILDEN, Germany ...   , Translational research in cancer ... being presented at the American Society of Human ... 250,000-plus DNA samples linked to Ingenuity ®  Knowledge ... for genomic analysis  Ingenuity ®  Variant ...
Breaking Biology Technology:Biomass Power in the US Industry Market Research Report from IBISWorld Has Been Updated 2Biomass Power in the US Industry Market Research Report from IBISWorld Has Been Updated 3Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 2Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 3Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 4Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 5UT Arlington project to detect possible damages in aircraft parts early in process 2QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 2QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 3QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 4QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 5QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 6
... the fossil fuels economy, Wisconsin is a donor state. There's ... terrain, so millions of dollars leave Wisconsin every day to ... our fossil fuel age. , ,Wisconsin's donor-state status isn't going ... governments, and citizens to conserve. While part of the answer, ...
... ticking on the 18-month window for Midwest Fiber Networks ... service. , ,After months of indecision and the courting of ... Cellnet , Mayor Tom Barrett decided to sign a contract ... build a $20 million "Wi-Fi" network, starting with a demonstration ...
... Software , a Merge Healthcare company and ... a new version of its digital imaging and communications ... a software development kit (SDK) that now supports Microsoft's ... software applications. , ,DICOM is a set of standards ...
Cached Biology Technology:State should keep open mind on nuclear power 2State should keep open mind on nuclear power 3State should keep open mind on nuclear power 4Milwaukee could be wireless in 18 months 2