Escherichia coli produces linoleic acid during late stationary phase.
AUTOR(ES)
Rabinowitch, H D
RESUMO
Escherichia coli produces linoleic acid in the late stationary phase. This was the case whether the cultures were grown aerobically or anaerobically on a supplemented glucose-salts medium. The linoleic acid was detected by thin-layer chromatography and was measured as the methyl ester by gas chromatography. The linoleic acid methyl ester was identified by its mass spectrum. Lipids extracted from late-stationary-phase cells generated thiobarbituric acid-reactive carbonyl products when incubated with a free radical initiator. In contrast, extracts from log-phase or early-stationary-phase cells failed to do so, in accordance with the presence of polyunsaturated fatty acid only in the stationary-phase cells.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=206585Documentos Relacionados
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