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Applied and Environmental Microbiology, October 2000, p. 4528-4531, Vol. 66, No. 10
0099-2240/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.

Cometabolic Degradation of Dibenzofuran by Biphenyl-Cultivated Ralstonia sp. Strain SBUG 290†

Dörte Becher,1,* Michael Specht,2 Elke Hammer,1 Wittko Francke,2 and Frieder Schauer1

Institut für Mikrobiologie und Molekularbiologie, Ernst-Moritz-Arndt-Universität Greifswald, D-17487 Greifswald,1 and Institut für Organische Chemie, Universität Hamburg, D-20146 Hamburg,2 Germany

Received 18 February 2000/Accepted 13 July 2000

Cells of the gram-negative bacterium Ralstonia sp. strain SBUG 290 grown in the presence of biphenyl are able to cooxidize dibenzofuran which has been 1,2-hydroxylated. Meta cleavage of the 1,2-dihydroxydibenzofuran between carbon atoms 1 and 9b produced 2-hydroxy-4-(3'-oxo-3'H-benzofuran-2'-yliden)but-2-enoic acid, which was degraded completely via salicylic acid. The presence of these intermediates indicates a degradation mechanism for dibenzofuran via lateral dioxygenation by Ralstonia sp. strain SBUG 290.

* Corresponding author. Mailing address: Institut für Mikrobiologie und Molekularbiologie, Ernst-Moritz-Arndt-Universität Greifswald, F.-L.-Jahn-Str. 15, D-17487 Greifswald, Germany. Phone: 49-3834-864235. Fax: 49-3834-864202. E-mail: dbecher{at}biologie.uni-greifswald.de.

dagger Dedicated to Günter Grube and his contribution to science and technology.

Applied and Environmental Microbiology, October 2000, p. 4528-4531, Vol. 66, No. 10
0099-2240/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.


This article has been cited by other articles:

  • Iida, T., Mukouzaka, Y., Nakamura, K., Kudo, T. (2002). Plasmid-Borne Genes Code for an Angular Dioxygenase Involved in Dibenzofuran Degradation by Terrabacter sp. Strain YK3. Appl. Environ. Microbiol. 68: 3716-3723 [Abstract] [Full Text]  


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