Ethanol-induced changes in the membrane lipid composition of Clostridium thermocellum.
Biochim Biophys Acta
; 693(1): 195-204, 1982 Dec 08.
Article
em En
| MEDLINE
| ID: mdl-7150588
ABSTRACT
When ethanol is added to the growth medium of Clostridium thermocellum ATCC 27405 and C9, a different membrane composition is observed after the period of growth arrest. Changes in fatty acid composition and some unsaturated, branched hydrocarbons have been monitored by GLC-MS. There is a marked increase in normal and anteiso-branched fatty acids at the expense of isobranched fatty acids and an increase in short and unsaturated fatty acids. Thus, an adaptive response to growth in the presence of ethanol induces a membrane containing fatty acids with lower melting points and produces a more 'fluid' membrane. The suggestion is made that these membrane changes may be maladaptive to the performance of C. thermocellum.
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Base de dados:
MEDLINE
Assunto principal:
Clostridium
/
Etanol
/
Lipídeos de Membrana
Idioma:
En
Revista:
Biochim Biophys Acta
Ano de publicação:
1982
Tipo de documento:
Article