Document Detail


Anaerobic biodegradation of 4-alkylphenols in a paddy soil microcosm supplemented with nitrate.
MedLine Citation:
PMID:  17408723     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Anaerobic degradation of phenol, p-cresol, 4-n-propylphenol (n-PP), 4-i-propylphenol (i-PP), 4-n-butylphenol (n-BP) and 4-sec-butylphenol (sec-BP) was observed in a paddy soil supplemented with nitrate. We detected the metabolites 4'-hydroxypropiophenone (HPP) from n-PP, 4-i-propenylphenol from i-PP, and 4-(1-butenyl)phenol and 4'-hydroxybutyrophenone (HBP) from n-BP. Compared with the original soils, Betaproteobacteria became predominant in the microcosm during the degradation of phenol and p-cresol whereas no remarkable change was observed in the community degrading propylphenols and butylphenols. The microcosm, however, did not degrade 4-t-butylphenol (t-BP), 4-t-octylphenol (t-OP) and 4-n-octylphenol (n-OP). Paddy soil supplemented with sulfate or iron (III) as electron acceptors did not degrade phenol and 4-alkylphenols with the exception of the degradation of p-cresol in sulfate-reducing conditions. It was demonstrated for the first time that anaerobic microbial degradation of alkylphenols, in a paddy soil supplemented with nitrate as an electron acceptor, occurred via oxidation of the alpha carbon in the alkyl chain.
Authors:
Atsushi Shibata; Koki Toyota; Katsuhide Miyake; Arata Katayama
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-04-03
Journal Detail:
Title:  Chemosphere     Volume:  68     ISSN:  0045-6535     ISO Abbreviation:  Chemosphere     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-07-30     Completed Date:  2007-11-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  England    
Other Details:
Languages:  eng     Pagination:  2096-103     Citation Subset:  IM    
Affiliation:
Department of Geotechnical and Environmental Engineering, Nagoya University, Chikusa, Nagoya 464-8603, Japan.
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MeSH Terms
Descriptor/Qualifier:
Agriculture
Anaerobiosis
Bacteria, Anaerobic / metabolism*
Biodegradation, Environmental*
Molecular Structure
Nitrates / chemistry*
Oxidation-Reduction
Soil / analysis*
Soil Microbiology*
Chemical
Reg. No./Substance:
0/Nitrates; 0/Soil

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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