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联苯培养的罗尔斯通氏菌属菌株SBUG 290对二苯并呋喃的共代谢降解

Cometabolic degradation of dibenzofuran by biphenyl-cultivated Ralstonia sp. strain SBUG 290.

作者信息

Becher D, Specht M, Hammer E, Francke W, Schauer F

机构信息

Institut für Mikrobiologie und Molekularbiologie, Ernst-Moritz-Arndt-Universität Greifswald, D-17487 Greifswald, Germany.

出版信息

Appl Environ Microbiol. 2000 Oct;66(10):4528-31. doi: 10.1128/AEM.66.10.4528-4531.2000.

DOI:10.1128/AEM.66.10.4528-4531.2000
PMID:11010910
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC92336/
Abstract

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.

摘要

在联苯存在下生长的革兰氏阴性细菌罗尔斯通氏菌属菌株SBUG 290的细胞能够共氧化已被1,2-羟基化的二苯并呋喃。1,2-二羟基二苯并呋喃在碳原子1和9b之间的间位裂解产生2-羟基-4-(3'-氧代-3'H-苯并呋喃-2'-亚基)丁-2-烯酸，其通过水杨酸完全降解。这些中间体的存在表明罗尔斯通氏菌属菌株SBUG 290通过侧向双加氧作用降解二苯并呋喃的机制。

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