Main Title |
Bacterial degredation of dibenzo-p-dioxin and chlorinated dibenzo-p-dioxins / |
Author |
Klecka, Gary Michael. ;
Klecka, G. M. ;
Gibson, D. T.
|
Other Authors |
|
CORP Author |
Texas Univ. at Austin. Dept. of Microbiology.;Environmental Research Lab., Gulf Breeze, FL. |
Publisher |
U.S. Environmental Protection Agency, Environmental Research Laboratory, |
Year Published |
1981 |
Report Number |
EPA/600/4-81/016; EPA-R-804525 |
Stock Number |
PB81-171639 |
Subjects |
Chlorodibenzodioxins ;
Organochlorine compounds--Biodegradation ;
Catechol
|
Additional Subjects |
Biodeterioration ;
Oxidation ;
Oxygen heterocyclic compounds ;
Chlorine aromatic compounds ;
Pseudomonas ;
Bacteria ;
Inhibitors ;
Growth regulators ;
Dibenzodioxins ;
Dibenzofurans ;
Toxic substances ;
Dioxins ;
Beijerinickia ;
Biodegradation ;
Metabolites
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB81-171639 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
74 pages : illustrations ; 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." Includes bibliographical references. Microfiche. |
Place Published |
Gulf Breeze, FL : |
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 |
Cataloging Source |
OCLC/T |
OCLC Time Stamp |
20020118173551 |
Language |
eng |
Origin |
NTIS |
Type |
MERGE |
OCLC Rec Leader |
01204nam 2200301Ka 45020 |