Navigation Links
Tiny marine microbes exert influence on global climate
Date:7/15/2010

e a visual record of microbial behaviour in the presence of DMSP.

"It's important to be able to directly look at an environment in order to understand its ecology," Stocker said. "We can now visualize the behavior of marine microorganisms much like ecologists have done with macro-organisms for a long time."

To do this, the team recreated a microcosm of the ocean environment using a microfluidic device about the size of a flash drive with minuscule channels engraved in a clear rubbery material. The scientists injected DMSP into the channel in a way that mimics the bursting of an algal cell after viral infection a common event in the ocean then, using a camera attached to a microscope, they recorded whether and how microbes swam towards the chemical.

The researchers found that some marine microbes, including bacteria, are attracted to DMSP because they feed on it, whereas others are drawn to the chemical because it signals the presence of prey. This challenges previous theories that this chemical might be a deterrent against predators.

"Our observations clearly show that, for some plankton, DMSP acts as an attractant towards prey rather than a deterrent," said Sim, an expert on the role of DMSP in the sulfur cycle, "By simulating the microscale patches of the chemical cue and directly monitoring the swimming responses of the predators towards these patches, we get a much more accurate perception of these important ecological interactions than can be obtained from traditional bulk approaches."

"These scientists have used impressive technology to study interactions between organisms and their chemical environment at the scales they actually take place," said David Garrison, director of the National Science Foundation (NSF)'s biological oceanography program. "The research will give us new insights on the workings of microbial assemblages in nature."

The research also indicates that marine microorganisms have at l
'/>"/>

Contact: Jennifer Hirsch
jfhirsch@mit.edu
617-253-1682
Massachusetts Institute of Technology
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Marine scientists return with rare creatures from the deep
2. Robot submarine patrols Lake Michigan for climate-change study
3. New online map shows network of protection for North Americas marine ecosystems
4. Oil spill threatens toothy marine predator that is cultural and historic icon
5. Study sheds light on how marine animals survive stress
6. Scientists to study impact of gulf oil spill on marine food webs
7. Scientists use biomedical technique to image marine worm
8. Marine protected areas conserve Mediterranean red coral
9. Hamlet fish sheds light on evolution of marine species
10. Marine Protected Areas Federal Advisory Committee to meet in Charleston, S.C.
11. FSU marine ecologist wins grant to study endangered sawfish
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tiny marine microbes exert influence on global climate
(Date:9/12/2014)... attack from a pathogen, they sometimes respond by killing ... committing "cell suicide" to thwart further damage from the ... microscopic, spots or lesions on the plant. , But ... the plant regulates this "spotty" defense mechanism because the ... North Carolina State University have identified a number of ...
(Date:9/12/2014)... of dendritic cells in human skin have assorted functions ... report researchers in the journal EMBO Molecular Medicine ... the composition of dendritic cells in psoriatic skin lesions ... the disease. , "We urgently need new ways ... to patients and reduce the incidence of known side ...
(Date:9/11/2014)... Northumberland and Durham" by Nathaniel John Winch is re-published ... an example of combining modern information technology together with ... and data re-use. This publication will be supporting ongoing ... be seen as a model for other regions in ... the meticulous detail of old books with the interconnectedness ...
Breaking Biology News(10 mins):Corn spots: Study finds important genes in defense response 2Dendritic cells affect onset and progress of psoriasis 2Re-publication of 'Flora of Northumberland and Durham' (1831): A dramatic account of change 2Re-publication of 'Flora of Northumberland and Durham' (1831): A dramatic account of change 3
... ecosystem below an Antarctic glacier and learned that it survived ... growth. Described in the April 17 issue of ... a pool of brine trapped below Taylor Glacier and next ... Priscu , co-author of the Science article. Priscu ...
... over, Y chromosome it,s time X got some ... chromosome associated with being female, University of California, Berkeley, ... history of the X chromosome is every bit as ... important clues to the origins and benefits of sexual ...
... Sven Enerbck, Professor at the Institute of Biomedicine at the ... scientists who published their results in The New England ... Enerbck and others show that adults use brown fat to ... new possibilities in treating overweight and obesity. It has ...
Cached Biology News:Ancient ecosystem thrives millions of years below Antarctic glacier 2The story of X -- evolution of a sex chromosome 2The story of X -- evolution of a sex chromosome 3The story of X -- evolution of a sex chromosome 4
(Date:9/12/2014)... (PRWEB) September 12, 2014 Advancing ... and decontamination of chemical and biological threats is ... by Worcester Polytechnic Institute (WPI) and the Georgian ... the Science for Peace and Security Programme of ... of NATO’s Advanced Research Workshop series, the event ...
(Date:9/12/2014)... (PRWEB) September 12, 2014 Today, “The ... on Indiegogo. , The film, directed by former ... Aldrin, Shimon Peres, Ashton Kutcher, Will.i.Am, Michio Kaku, and ... and there’s only one university in the world devoted ... change the lives of a billion people: Singularity University. ...
(Date:9/12/2014)... 2014 Sandia Biotech, Inc. announced today ... with STC.UNM (STC) for a technology developed by researchers ... New Mexico, and Queen Mary University of London in ... Recombinant Fluorescent Antibody Technology Platform (RFAP) was developed by ... and Dr. Angray Kang from Queen Mary’s Department of ...
(Date:9/11/2014)... (hiPSCs), researchers have gained new insight into what ... of neuronal signaling associated with this disease. They ... hiPSCs of healthy individuals and of patients with ... cells to release neurotransmitters, such as dopamine, that ... to various disorders. By discovering a simple method ...
Breaking Biology Technology:Worcester Polytechnic Institute to Lead Scientific Workshop on Nanoscale Defenses for Biological and Chemical Threats 2Worcester Polytechnic Institute to Lead Scientific Workshop on Nanoscale Defenses for Biological and Chemical Threats 3Documentary Film that Follows Singularity University Students as They Change the World Launches its IndieGoGo Fundraising Campaign 2Sandia Biotech and STC.UNM Announce Option Agreement to License Novel Recombinant Antibody Technology 2Sandia Biotech and STC.UNM Announce Option Agreement to License Novel Recombinant Antibody Technology 3Sandia Biotech and STC.UNM Announce Option Agreement to License Novel Recombinant Antibody Technology 4Stem cells help researchers understand how schizophrenic brains function 2
... 16 Monogram,Biosciences, Inc. (Nasdaq: MGRM ) ... of the company,s HIV tropism assay were presented ... Drug Resistance Workshop,in Sitges, Spain. Trofile was introduced ... in class CCR5 antagonist, in,August 2007. Recent enhancements ...
... /PRNewswire-FirstCall/ - ProMetic Life Sciences Inc.,(TSX: PLI) ... compound in clinical trial in patients with ... the European Hematology Association,held in Copenhagen, Denmark ... Director R&D, Biology, presented data on,PBI-1402 in ...
... Inc. (Nasdaq: ALXN ) today announced that ... of Alexion,Pharmaceuticals, will present at the William Blair ... a.m., local time (10:10 a.m., eastern) on,Thursday, June ... Sinha,s remarks will be available live. You can,access ...
Cached Biology Technology:Sensitivity Enhancements to Monogram's Trofile(TM) Assay Demonstrate Improved Power to Select Patients for CCR5 Antagonist Therapy 2Sensitivity Enhancements to Monogram's Trofile(TM) Assay Demonstrate Improved Power to Select Patients for CCR5 Antagonist Therapy 3Sensitivity Enhancements to Monogram's Trofile(TM) Assay Demonstrate Improved Power to Select Patients for CCR5 Antagonist Therapy 4Sensitivity Enhancements to Monogram's Trofile(TM) Assay Demonstrate Improved Power to Select Patients for CCR5 Antagonist Therapy 5Sensitivity Enhancements to Monogram's Trofile(TM) Assay Demonstrate Improved Power to Select Patients for CCR5 Antagonist Therapy 6Positive clinical data for PBI-1402 presented at the Annual Congress of the European Hematology Association 2Positive clinical data for PBI-1402 presented at the Annual Congress of the European Hematology Association 3
...
... Lyophilized. Lyophilized from 2 mM sodium ... human liver. Cathepsin D is a major ... as a 52 kDa proenzyme. Overexpression of ... associated with higher risk of relapse and ...
... Grade Thrombin is a highly purified preparation ... with appropriate vectors. The preparation is functionally ... is free of detectable contaminating proteases. Prepared ... by certified tests to be negative for ...
Rat Hepatocytes (RH) (>3,000,000 cells)...
Biology Products: