Metabolism of structurally modified acyclic monoterpenes by Pseudomonas incognita

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Abstract
The ability of P. incognita to metabolize some structurally modified acyclic monoterpenes was tested. The 6,7 double bond was essential for these compounds to serve as a substrate for this organism, whereas the same was not true with the 1,2 double bond. Metabolism of dihydrolinalyl acetate by this strain yielded dihydrolinalool, dihydrolinalool-8-carboxylic acid, dihydrolinalyl acetate-8-carboxylic acid and 4-acetoxy-4-methyl hexanoic acid. A cell-free extract prepared from dihydrolinalyl acetate grown cells transformed dihydrolinalyl acetate into dihydrolinalool and dihydrolinalool-8-carboxylic acid. Based on the identification of various metabolites isolated from the culture medium, and on growth and manometric studies carried out with the isolated metabolites and with related synthetic analogs, probable pathways for the biodegradation of dihydrolinalyl acetate are presented.

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