OLS : Record

RECORD NUMBER: 49 OF 810

Main Title Bacterial degredation of dibenzo-p-dioxin and chlorinated dibenzo-p-dioxins {microform} /
Author Kle cka, Gary Michael.; Klecka, G. M.; Gibson, D. T.
CORP Author Texas Univ. at Austin. Dept. of Microbiology.;Environmental Research Lab., Gulf Breeze, FL.
Publisher U.S. Environmental Protection Agency, Environmental Research Laboratory,
Place Published Gulf Breeze, FL :
Year Published 1981
Report Number EPA/600/4-81/016; EPA-R-804525
Stock Number PB81-171639
OCLC Number 48816535
Subjects Biodeterioration; Oxidation; Oxygen heterocyclic compounds; Chlorine aromatic compounds; Pseudomonas; Bacteria; Inhibitors; Growth regulators; Dibenzodioxins; Dibenzofurans; Toxic substances; Dioxins; Beijerinickia; Biodegradation; Metabolites
Subject Added Ent Chlorodibenzodioxins; Organochlorine compounds--Biodegradation; Catechol
Holdings
Library   Call Number Additional Info Location Date Modified
ERBD PB81-171639 NERL/ESD-LV Library/Las Vegas,NV 09/16/2009
NTIS PB81-171639 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 74 p. : ill. ; 29 cm.
Abstract This report sought to determine the initial oxidative pathways for dibenzodioxin and dibenzofuran compounds by bacteria in aquatic systems. Bacterial cultures were isolated and oxidized dibenzo-p-dioxin and mono-chlorinated dibenzo-p-dioxins; however, di-chlorinated dibenzo-p-dioxins, were not metabolized by either strain. The metabolite, 1,2-dihydrodibenzo-p-dioxin, was a potent inhibitor of further oxidation. Pseudomonas sp. N.C.I.B. 9816, strain II, when grown on salicylate in the presence of dibenzo-p-dioxin, accumulated cis-1,2-dihydroxy-1,2-dihydrodibenzo-p-dioxin and 2-hydroxydibenzo-p-dioxin in the culture medium. Crude cell extracts prepared from the parental strain grown with naphthalene oxidized cis-1,2-dihydroxy-1,2-dihyrodibenzo-p-dioxin under both aerobic and anerobic conditions to 1,2-dihydroxydibenzo-p-dioxin. Further degradation of this metabolite was not detected. Whole cells of the parent strain of Beijerinckia, grown with succinate and biphenyl, oxidized dibenzo-p-dioxin and several chlorinated dioxins. The rate of oxidation of the chlorinated dibenzo-p-dioxins decreased with an increasing degree of chlorine substitution. A mutant strain (B8/36) of Beijerinckia oxidized dibenzo-p-dioxin to cis-1,2-dihydroxy-1,2-dihydrodibenzo-p-dioxin.
Notes "March 1981." Bibliography included. Microfiche.
Author Added Ent
Gibson, D. T.
Corporate Au Added Ent Texas University (Austin). Department of Microbiology.
PUB Date Free Form 1981.
Ti Tra Differently Bacterial degradation of dibenzo-p-dioxin and chlorinated dibenzo-p-dioxins.
NTIS Prices PC A04/MF A01
BIB Level m
OCLC Time Stamp 20020118173551
Cataloging Source OCLC/T
Language eng
Origin OCLC
Type MERGE
OCLC Rec Leader 01204nam 2200301Ka 45020