Biotransformation of 1,2,3-Tri- and 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin by Sphingomonas wittichii strain RW1
SCIE
SCOPUS
- Title
- Biotransformation of 1,2,3-Tri- and 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin by Sphingomonas wittichii strain RW1
- Authors
- Nam, IH; Kim, YM; Schmidt, S; Chang, YS
- Date Issued
- 2006-01
- Publisher
- AMER SOC MICROBIOLOGY
- Abstract
- Sphingomonas wittichii RW1 is able to catabolize 1,2,3,4-tetrachlorodibenzo-p-dioxin (H. B. Hong, Y. S. Chang, I. H. Nam, P. Fortnagel, and S. Schmidt, Appl. Environ. Microbiol. 68:2584-2588, 2002). Here we demonstrate the aerobic bacterial catabolism of the ubiquitous toxic diaryl ether pollutant 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin by this strain. The products of this biotransformation were identified as tetrachlorocatechol and 2-methoxy-3,4,5,6-tetrachlorophenol by comparing mass spectra recorded before and after n-butylboronate and NO-bis(trimethylsilyl)-trifluoroacetamide derivatization with those of authentic compounds. Additional experiments showed that the less-chlorinated 1,2,3,7,8-pentachlorodibenzo-p-dioxin was not transformed by the strain RW1. The importance of substitution patterns for the degradability of individual congeners was illustrated by the fact that the 1,2,3-trichlorodibenzo-p-dioxin was catabolized to yield 3,4,5-trichlorocatechol, whereas the 2,3,7-trichlorodibenzo-p-dioxin was not attacked.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/9354
- DOI
- 10.1128/AEM.72.1.112-116.2006
- ISSN
- 0099-2240
- Article Type
- Article
- Citation
- APPLIED AND ENVIRONMENTAL MICROBIOLOGY, vol. 72, no. 1, page. 112 - 116, 2006-01
- Files in This Item:
-
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.