Abstract
Methylobacterium rhodesianum was cultivated using an extended fed-batch regime. After treatments with N-nitroso-methyl-urea or X-rays, colonies showing an irregular morphology or increased heavy-metal sensitivity were selected. Electron micrographs of cells of isolated strains demonstrated the loss of the glycocalyx. Selectants and the parental strain yielded identical PHB amounts.
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Ackermann JU, Müller S, Lösche A, Bley T, Babel W (1995) Methylobacterium rhodesianum cells tend to double the DNA content under growth limitations and accumulate PHB. Biotechnol. 39: 9-20.
Adam D (1993) Ökologische Anforderungen an die produktion. In: Adam D, ed. Schriften zur Unternehmensführung 48: Wiesbaden: Verl. Dr. Th. Gabler, pp 5-31.
Babel W, Riis V, Hainich E (1990) Mikrobielle thermoplast: Biosynthese, eigenschaften und anwendung. Plaste Kautschuk 37: 106-115.
Bormann EJ, Leissner M, Beer B (1997) Growth and formation of poly(hydroxybutyric acid) by Methylobacterium rhodesianum at methanol concentrations of above 25 g l−1. Acta Biotechnol. 17: 275-288.
Chiellini E, Solaro R (1996) Biodegradable polymeric materials. Adv. Mater. 8: 305-313.
Geesey GG, Jang L (1989) Interactions between Metal Ions and Capsular Polymers. In: Beveridge TJ, Doyle RJ, eds. Metal Ions and Bacteria, New York: John Wiley & Sons, pp. 325-357.
Hänggi UJ (1995) Requirements of bacterial polyesters as future substitute for conventional plastics for consumers goods. FEMS Microbiol. Rev. 16: 213-220.
Hilliger M, Driesch D, Wulfes C, Menzel KD, Christner A, Rauchstein KD, Lehmann O (1997) Process development of a polyhydroxyalkanoate fermentation. In: Eggink g, ed. Intern. Symp. on Bacterial Polyhydroxyalkanoates. Davos: ISBN 0-660-17083-3. Poster 8/05.
Kim SW, Kim P, Hyuns S, Lee SY, Sinisterra JV (1996) High production of poly-ß-hydroxybutyrate from Methylobacterium organophilum under potassium limitation. Biotechnol. Lett. 18: 25-30.
Lee SY (1996) Plasic bacteria? Progress and prospects for polyhydroxyalkanoate production in bacteria. Trends Biotechnol. 14: 413-438.
Luzier WD (1992) Material derived from biomass/biodegradable materials. Proc. Nat. Acad. Sci. 89: 839-842.
Neubert M, Bormann EJ, Gebhardt HJ, Wolleschensky E (1982) Extended fed-batch-cultivation of exponential growing microorganisms. Acta Biotechnol. 4: 37-47.
Roberts IS (1996) The biochemistry and genetics of capsular polysaccharide production in bacteria. Ann. Rev. Microbiol. 50: 285-315.
Steinbüchel A, Aerts K, Babel W, Föllner C, Liebergesell M, Madkour MH, Mayer F, Peter-Fürst U, Pries A, Valentin HE, Wiezcorek R (1995) Considerations on the structure and biochemistry of bacterial polyhydroxyalkanoic acid inclusions. Can. J. Microbiol. 41(Suppl): 94-105.
Williamson DH, Wilkinson JF (1958) The isolation and estimation of the poly-ß-hydroxybutyrate inclusions of Bacillus species. J. Gen. Microbiol. 19: 198-209.
Yamamoto Y, Abe H, Doi Y (1996) Development in the area of medical or implantable polymers. In: Eggink B, ed. Intern. Symp. on Bacterial Polyhydroxyalkanoates. Davos: ISBN 0-660-17083-3. Plenary lecture.
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Bormann, E., Roth, M., Linß, W. et al. Selection of capsule deficient strains of Methylobacterium rhodesianum producing polyhydroxybutyrate. Biotechnology Techniques 13, 539–544 (1999). https://doi.org/10.1023/A:1008904814522
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DOI: https://doi.org/10.1023/A:1008904814522