Microbial Assimilation of Hydrocarbons II. Fatty Acids Derived from 1-Alkenes
AUTOR(ES)
Makula, R.
RESUMO
The utilization of 1-alkenes by Micrococcus cerificans was investigated with respect to characteristic fatty acid profiles resulting from growth at the expense of these substrates. Saturated fatty acids containing even numbers of carbon atoms were produced from 1-dodecene and 1-tetradecene. Unsaturated fatty acids related to the parent alkene were not detected. The fatty acid profile from 1-pentadecene utilization resulted in the identification of 14-pentadecenoic acid, indicating preferential methyl-group attack. Studies with 1-hexadecene and 1-octadecene indicated simultaneous methyl-group and double-bond attack. Ω-Unsaturated fatty acids related to carbon number of parent alkene and odd-carbon fatty acids one carbon less than the substrate molecule were identified. A mechanism involving double bond epoxidation and oxidative cleavage was supported by measuring the release of formaldehyde. It appears that a dichotomous mechanism is functional in the assimilation of higher carbon number alkenes.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=315141Documentos Relacionados
- Microbial Assimilation of Hydrocarbons I. Fatty Acids Derived from Normal Alkanes
- Microbial Assimilation of Hydrocarbons: Cellular Distribution of Fatty Acids
- Microbial Assimilation of Hydrocarbons: Cellular Distribution of Fatty Acids
- Degradation of Hydrocarbons by Members of the Genus Candida II. Oxidation of n-Alkanes and 1-Alkenes by Candida lipolytica
- Microbial oxidation of gaseous hydrocarbons. II. Hydroxylation of alkanes and epoxidation of alkenes by cell-free particulate fractions of methane-utilizing bacteria.
