Document Detail


Chemoattraction to dimethylsulfoniopropionate throughout the marine microbial food web.
MedLine Citation:
PMID:  20647471     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Phytoplankton-produced dimethylsulfoniopropionate (DMSP) provides underwater and atmospheric foraging cues for several species of marine invertebrates, fish, birds, and mammals. However, its role in the chemical ecology of marine planktonic microbes is largely unknown, and there is evidence for contradictory functions. By using microfluidics and image analysis of swimming behavior, we observed attraction toward microscale pulses of DMSP and related compounds among several motile strains of phytoplankton, heterotrophic bacteria, and bacterivore and herbivore microzooplankton. Because microbial DMSP cycling is the main natural source of cloud-forming sulfur aerosols, our results highlight how adaptations to microscale chemical seascapes shape planktonic food webs, while potentially influencing climate at the global scale.
Authors:
Justin R Seymour; Rafel Simó; Tanvir Ahmed; Roman Stocker
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  329     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-21     Completed Date:  2010-08-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  342-5     Citation Subset:  IM    
Affiliation:
Ralph M. Parsons Laboratory, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Justin.Seymour@uts.edu.au
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MeSH Terms
Descriptor/Qualifier:
Algae, Green / physiology
Alphaproteobacteria / physiology
Animals
Bacterial Physiological Phenomena*
Betaine
Chemotactic Factors / metabolism
Chemotaxis*
Cues
Dinoflagellida / physiology
Ecosystem
Food Chain*
Kinetoplastida / physiology
Microfluidic Analytical Techniques
Movement
Phytoplankton / metabolism,  physiology*
Pseudoalteromonas / physiology
Seawater* / microbiology
Sulfonium Compounds* / metabolism
Synechococcus / physiology
Zooplankton / physiology*
Chemical
Reg. No./Substance:
0/Chemotactic Factors; 0/Sulfonium Compounds; 107-43-7/Betaine; 7314-30-9/dimethylpropiothetin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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