Pseudomonas geraniol

Hdschle B, D Jendrossek (2005) Utilization of geraniol is dependent on molybdenum in Pseudomonas aeruginosa. evidence for different metabolic routes for oxidation of geraniol and citronellol. Microbiology (UK) 151 2277-2283. 

Fig. (4). Microbial degradation of citronellol, nerol and geraniol by Pseudomonas citronellolis (after [32])...

In 1977, a Pseudomonad was isolated from soil by enrichment culture technique with linalool as the sole source of carbon and energy [36]. The bacterial strain was later identified as Pseudomonas incognita and given the name linalool strain . It was also capable of growing on geraniol, nerol and limonene. The biotransformation of geraniol by this... 

As mentioned before, a Pseudomonas incognita was isolated by enrichment technique on the monoterpene alcohol linalool that was also able to grow on geraniol, nerol and limonene [36]. The metabolism of limonene by this bacterium was also investigated [37]. After fermentation the medium yielded as main product a crystallic acid, perillic acid, together with unmetabolised limonene, and some oxygenated compounds dihydrocarvone, carvone, carveol, p-menth-8-en-1 -ol-2-one, p-menth-8-ene-1,2-diol or p-menth-1 -ene-6,9-diol (structure not fully elucidated) and finally / -isopropenyl pimelic acid. 

The first data about the bioconversion of farnesol date back to the sixties its degradation pathway is similar to that of geraniol and nerol. Seubert [139] showed that the degradation of farnesol by Pseudomonas citronellolis proceeds through the oxidation of C-l to give famesic acid, followed by carboxylation of the -methyl group. Subsequently, the 2,3-double bond of the dicarboxylic acid is hydrated to a 3-hydroxy acid which is then acted upon by a lyase resulting in the formation of a /Tketo acid and acetic acid. The /Tketo acid readily enters the fatty acid oxidation pathway [29]. 

Rama-Devi, J. and Battacharyya, P.K. 1977. Microbial transformation of terpenes Part XXIV. Pathways of degradation of geraniol, nerol and limonene by Pseudomonas incognita (linalool strain). Indian J. Biochem. Biophys. 14 359-363. 

FIGURE 19.7 Metabolism of geraniol (271) hy Pseudomonas incognita. (Modi ed from Madyastha, K.M., Proc. Indian Acad. Sci. Chem. Sci), 93, 677, 1984.)... 

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