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Appl Environ Microbiol. Aug 1989; 55(8): 1949–1954.
PMCID: PMC202985

Synthesis of poly-3-hydroxyalkanoates is a common feature of fluorescent pseudomonads.


The fluorescent pseudomonads are classified as a group, one characteristic of which is that they do not accumulate poly-3-hydroxybutyrate (PHB) during nutrient starvation in the presence of excess carbon source. In this paper we show that prototype strains from this subclass, such as Pseudomonas aeruginosa, Pseudomonas putida, and Pseudomonas fluorescens, do accumulate poly-3-hydroxyalkanoates (PHA) when grown on fatty acids. These PHAs are composed of medium-chain-length (C6 to C12) 3-hydroxy fatty acids. The ability to form these polyesters does not depend on the presence of plasmids. A specificity profile of the enzymes involved in the biosynthesis of PHA was determined by growing Pseudomonas oleovorans on fatty acids ranging from C4 to C18. In all cases, PHAs were formed which contained C6 to C12 3-hydroxy fatty acids, with a strong preference for 3-hydroxyoctanoate when Ceven fatty acids were supplied and 3-hydroxynonanoate when Codd fatty acids were the substrate. These results indicate that the formation of PHAs depends on a specific enzyme system which is distinct from that responsible for the synthesis of PHB. While the fluorescent pseudomonads are characterized by their inability to make PHB, they appear to share the capacity to produce PHAs. This characteristic may be helpful in classifying pseudomonads. It may also be useful in the optimization of PHA production for biopolymer applications.

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Selected References

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  • Bagdasarian M, Lurz R, Rückert B, Franklin FC, Bagdasarian MM, Frey J, Timmis KN. Specific-purpose plasmid cloning vectors. II. Broad host range, high copy number, RSF1010-derived vectors, and a host-vector system for gene cloning in Pseudomonas. Gene. 1981 Dec;16(1-3):237–247. [PubMed]
  • Brandl H, Gross RA, Lenz RW, Fuller RC. Pseudomonas oleovorans as a Source of Poly(beta-Hydroxyalkanoates) for Potential Applications as Biodegradable Polyesters. Appl Environ Microbiol. 1988 Aug;54(8):1977–1982. [PMC free article] [PubMed]
  • Byng GS, Johnson JL, Whitaker RJ, Gherna RL, Jensen RA. The evolutionary pattern of aromatic amino acid biosynthesis and the emerging phylogeny of pseudomonad bacteria. J Mol Evol. 1983;19(3-4):272–282. [PubMed]
  • Dawes EA, Senior PJ. The role and regulation of energy reserve polymers in micro-organisms. Adv Microb Physiol. 1973;10:135–266. [PubMed]
  • de Smet MJ, Eggink G, Witholt B, Kingma J, Wynberg H. Characterization of intracellular inclusions formed by Pseudomonas oleovorans during growth on octane. J Bacteriol. 1983 May;154(2):870–878. [PMC free article] [PubMed]
  • Eggink G, van Lelyveld PH, Arnberg A, Arfman N, Witteveen C, Witholt B. Structure of the Pseudomonas putida alkBAC operon. Identification of transcription and translation products. J Biol Chem. 1987 May 5;262(13):6400–6406. [PubMed]
  • Grund A, Shapiro J, Fennewald M, Bacha P, Leahy J, Markbreiter K, Nieder M, Toepfer M. Regulation of alkane oxidation in Pseudomonas putida. J Bacteriol. 1975 Aug;123(2):546–556. [PMC free article] [PubMed]
  • Holloway BW. Genetics of Pseudomonas. Bacteriol Rev. 1969 Sep;33(3):419–443. [PMC free article] [PubMed]
  • Jenkins LS, Nunn WD. Genetic and molecular characterization of the genes involved in short-chain fatty acid degradation in Escherichia coli: the ato system. J Bacteriol. 1987 Jan;169(1):42–52. [PMC free article] [PubMed]
  • Lageveen RG, Huisman GW, Preusting H, Ketelaar P, Eggink G, Witholt B. Formation of Polyesters by Pseudomonas oleovorans: Effect of Substrates on Formation and Composition of Poly-(R)-3-Hydroxyalkanoates and Poly-(R)-3-Hydroxyalkenoates. Appl Environ Microbiol. 1988 Dec;54(12):2924–2932. [PMC free article] [PubMed]
  • MARCUS PI, TALALAY P. Induction and purification of alpha- and beta-hydroxysteroid dehydrogenases. J Biol Chem. 1956 Feb;218(2):661–674. [PubMed]
  • Nunn WD. A molecular view of fatty acid catabolism in Escherichia coli. Microbiol Rev. 1986 Jun;50(2):179–192. [PMC free article] [PubMed]
  • Schwartz RD, McCoy CJ. Pseudomonas oleovorans hydroxylation-epoxidation system: additional strain improvements. Appl Microbiol. 1973 Aug;26(2):217–218. [PMC free article] [PubMed]
  • Stanier RY, Palleroni NJ, Doudoroff M. The aerobic pseudomonads: a taxonomic study. J Gen Microbiol. 1966 May;43(2):159–271. [PubMed]
  • VOGEL HJ, BONNER DM. Acetylornithinase of Escherichia coli: partial purification and some properties. J Biol Chem. 1956 Jan;218(1):97–106. [PubMed]
  • Witholt B. Method for isolating mutants overproducing nicotinamide adenine dinucleotide and its precursors. J Bacteriol. 1972 Jan;109(1):350–364. [PMC free article] [PubMed]

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