Degradation and bioconversion of aliphatic and aromatic hydrocarbons by Rhodococcus ruber 219 |
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| Authors: | C. Bock R. M. Kroppenstedt H. Diekmann |
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| Affiliation: | Institut für Mikrobiologie, Universit?t Hannover, Schneiderberg 50, D-30167 Hannover, Germany. Fax: +49 511 7625287, DE
Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Mascheroder Weg 1B, D-38124 Braunschweig, Germany, DE
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| Abstract: | A tetrahydrofuran-degrading bacterial strain, which had previously been tentatively assigned as Rhodococcus sp. strain 219, has now been identified as Rhodococcus ruber using physiological and chemotaxonomical tests. A comparison with the type strain DSM 43338 has revealed that the new strain differs in its ability to degrade or convert tetrahydrofuran and compounds of similar structure such as 2,5-dimethyltetrahydrofuran or tetrahydropyran. Tetrahydrofuran acts as an inducer for its degradation. When tetrahydrofuran-induced cells were incubated with 2,5-dimethyltetrahydrofuran two primary metabolites could be detected by gas chromatography, and 2-hydroxyhexane-5-one and hexane-2,5-dione were isolated and characterized by 1H-NMR spectroscopy or as dinitrophenylhydrazones. The formation of these intermediates is consistent with an initial 2hydroxylation of the cyclic ether, which has not yet been described in microorganisms. Received: 19 July 1995/Received last revision: 31 October 1995/Accepted: 6 November 1995 |
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