PMID: 2504698Sep 1, 1989Paper

Plasmid control of the Pseudomonas aeruginosa and Pseudomonas putida phenotypes and of linalool and p-cymene oxidation

Journal of Bacteriology
M J de SmetI C Gunsalus

Abstract

Two Pseudomonas strains (PpG777 and PaG158) were derived from the parent isolate Pseudomonas incognita (putida). Strain PpG777 resembles the parental culture in growth on linalool as a source of carbon and slight growth on p-cymene, whereas PaG158 grows well on p-cymene, but not on linalool or other terpenes tested, and has a P. aeruginosa phenotype. Curing studies indicate that linalool metabolism is controlled by an extrachromosomal element whose loss forms a stable strain PaG158 with the p-cymene growth and P. aeruginosa phenotype characters. The plasmid can be transferred by PpG777 to both P. putida and P. aeruginosa strains. Surprisingly, the latter assume the P. putida phenotype. We conclude that the genetic potential to oxidize p-cymene is inherent in PpG777 but expression is repressed. Similarly, this observation implies that support of linalool oxidation effectively conceals the P. aeruginosa character.

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Citations

Dec 1, 1994·Applied and Environmental Microbiology·F Reichlin, H P Kohler

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