| Effects of crude oil on phospholipid fatty acid compositions of marine hydrocarbon degraders: estimation of the bacterial membrane fluidity. | |
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MedLine Citation:
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PMID: 15589239 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In this study, we investigated, in vitro, the effects of petroleum hydrocarbons on the phospholipid ester-linked fatty acid composition of Corynebacterium sp. Strain 8. The usual ratio of monounsaturated fatty acids E/Z (or trans/cis) was calculated. This ratio led to unexpected results because we found similar values for growths on either a hydrophobic substrate (crude oil) or a soluble carbon source (rich medium). The use of such an indicator seemed limited for monitoring an environmental stress, so we proposed an index based on the homeoviscous adaptation theory. A membrane viscosity index was defined and applied to Corynebacterium sp. Strain 8 (in vitro growth) and to a sedimentary community (in situ experiment). The results allowed us to estimate the membrane fluidity of both an isolated strain and a bacterial community in accordance with the medium hydrophobicity. |
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Authors:
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N Mazzella; A D Syakti; J Molinet; M Gilewicz; P Doumenq; J Artaud; J-C Bertrand |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Environmental research Volume: 97 ISSN: 0013-9351 ISO Abbreviation: Environ. Res. Publication Date: 2005 Mar |
Date Detail:
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Created Date: 2004-12-13 Completed Date: 2005-02-03 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0147621 Medline TA: Environ Res Country: United States |
Other Details:
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Languages: eng Pagination: 300-11 Citation Subset: IM |
Affiliation:
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Laboratoire de Chimie Analytique de l'Environnement, Université d'Aix Marseille, UMR 6171, IFR PMSE 112, Europôle de l'Arbois, BP 80, 13545 Aix-en-Provence Cedex 4, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Biodegradation, Environmental Corynebacterium / drug effects*, metabolism Gas Chromatography-Mass Spectrometry Humans Membrane Fluidity Petroleum / toxicity* Phospholipids / metabolism* |
| Chemical | |
Reg. No./Substance:
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0/Petroleum; 0/Phospholipids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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