Document Detail


Biomarker techniques to screen for bacteria that produce polyunsaturated fatty acids.
MedLine Citation:
PMID:  11777566     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The production of polyunsaturated fatty acids (PUFA) by bacteria has been firmly established for over two decades although it is still commonly ignored. Investigations of Antarctic sea ice have revealed a high diversity of novel bacterial taxa with the ability to produce PUFA. The majority are psychrophilic (requiring low temperatures for growth) and halophilic (requiring the presence of salts for growth), in contrast to the bacterial community present in the underlying water column. Specific fatty acids may be used as indicators of PUFA-producing bacteria in environmental samples. Structural studies of bacterial phospholipids have been particularly revealing in suggesting biomarkers specific for prokaryotic PUFA input. The use of negative ion fast atom bombardment tandem mass spectrometry for the analysis of bacterial phospholipids has identified species specific for certain groups of bacterial PUFA producers. The phylogeny of PUFA production in the gamma-Proteobacteria also suggests the future use of PUFA genes for the assessment of marine bacterial biodiversity.
Authors:
David S Nichols; Tom A McMeekin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of microbiological methods     Volume:  48     ISSN:  0167-7012     ISO Abbreviation:  J. Microbiol. Methods     Publication Date:  2002 Feb 
Date Detail:
Created Date:  2002-01-04     Completed Date:  2002-02-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8306883     Medline TA:  J Microbiol Methods     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  161-70     Citation Subset:  IM    
Affiliation:
School of Agricultural Science, University of Tasmania, GPO Box 252-54, Hobart, Tasmania 7001, Australia. D.Nichols@utas.edu.au
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MeSH Terms
Descriptor/Qualifier:
Bacteria / chemistry,  classification,  metabolism*
Biological Markers
Fatty Acids, Unsaturated / analysis,  biosynthesis*
Phylogeny
Chemical
Reg. No./Substance:
0/Biological Markers; 0/Fatty Acids, Unsaturated

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


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