Izvestiya of Saratov University.

Chemistry. Biology. Ecology

ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)

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Ignatov V. V., Konnova S. A., Boyko A. S., Fedonenko Y. P., Konnova S. A., Fomina A. A. Characterization of the Fatty-Acid Composition of Lipids A from Azospirillum Lipopolysaccharides . Izvestiya of Saratov University. Chemistry. Biology. Ecology, 2009, vol. 9, iss. 1, pp. 36-41. DOI: 10.18500/1816-9775-2009-9-1-36-41

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
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Russian
Heading: 
Biology
Article type: 
Article
UDC: 
579.84+577.333+577.115
DOI: 
10.18500/1816-9775-2009-9-1-36-41

Characterization of the Fatty-Acid Composition of Lipids A from Azospirillum Lipopolysaccharides

Autors: 
Ignatov V. V., Institute of Biochemistry and Physiology of Plants and Microorganisms of the Russian Academy of Sciences - Subdivision of the Federal State Budgetary Research Institution Saratov Federal Scientific Centre of the Russian Academy of Sciences (IBPPM RAS)
Konnova Svetlana A., Saratov State University
Boyko Alevtina Sergeevna, Institute of Biochemistry and Physiology of Plants and Microorganisms of the Russian Academy of Sciences - Subdivision of the Federal State Budgetary Research Institution Saratov Federal Scientific Centre of the Russian Academy of Sciences (IBPPM RAS)
Fedonenko Yulia P., Institute of Biochemistry and Physiology of Plants and Microorganisms of the Russian Academy of Sciences - Subdivision of the Federal State Budgetary Research Institution Saratov Federal Scientific Centre of the Russian Academy of Sciences (IBPPM RAS)
Konnova Svetlana A., Saratov State University
Fomina A. A., Saratov State University
Abstract: 

On the basis of the results from analyses of lipopolysaccharides of eight Azospirillum strains, we showed that the major fatty-acid contents in these lipopolysaccharides were those of 3-hydroxytetradecanoic, hexadecanoic 3-hydroxyhexadecanoic, and octadecenoic acids. This finding confirms that these microorganisms are correctly assigned to the α-subclass of Proteobacreria. An exception was the fatty-acid profile of the lipopolysaccharide from A. lipoferum type strain Sp59b, in which the predominant contents were those of didecanoic, 2-hydroxydidecanoic, 3-hydroxydidecanoic, 3-hydroxytetradecanoic, hexadecanoic and octadecenoic acids. A correlation was found between the release of lipopolysaccharides from the membrane and the content of unsaturated fatty acids in lipids A. 

Key words: 
Azospirillum
lipopolysaccharide
structure
fatty-acid composition
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Received: 
20.10.2008
Accepted: 
20.03.2009
Published: 
20.04.2009
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