Degradation and mineralization of DDT by the ectomycorrhizal fungi, Xerocomus chrysenteron.
Identifieur interne : 001C31 ( Main/Corpus ); précédent : 001C30; suivant : 001C32Degradation and mineralization of DDT by the ectomycorrhizal fungi, Xerocomus chrysenteron.
Auteurs : Yi Huang ; Jie WangSource :
- Chemosphere [ 1879-1298 ] ; 2013.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : DDT, Dichlorodiphenyl Dichloroethylene, Dichlorodiphenyldichloroethane, Soil Pollutants.
- metabolism : Basidiomycota, Mycorrhizae.
- Biodegradation, Environmental, Gas Chromatography-Mass Spectrometry.
Abstract
One strain of ectomycorrhizal fungi, Xerocomus chrysenteron, had been investigated for its ability to degrade 1,1,1-trichloro-2,2-bis(4-chlorophe-nyl) ethane (DDT) by measuring unlabeled DDT and identifying its metabolites, and determining the mineralization of [(13)C]DDT in pure cultures. After 45d incubation, about 55% of the added DDT disappeared from the culture system, less than 5% remained in the nutrient solution, and about 44% was retained in the mycelium. Inoculation with mycelium enhanced the degradation of DDT in soil, and alleviated enrichment of DDT in plants. The metabolites identified by gas chromatography-mass spectrometry were 1,1-dichloro-2,2-bis(4-chlorophenyl) ethane (DDD), 1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene (DDE), and 4,4'-dichlorobenzophenone (DBP). There were significant differences in the δ(13)C of released CO2 between [(13)C]DDT and DDT cultures, which indicated X. chrysenteron was able to mineralize DDT to CO2.
DOI: 10.1016/j.chemosphere.2013.04.002
PubMed: 23651556
Links to Exploration step
pubmed:23651556Le document en format XML
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<author><name sortKey="Huang, Yi" sort="Huang, Yi" uniqKey="Huang Y" first="Yi" last="Huang">Yi Huang</name>
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<author><name sortKey="Wang, Jie" sort="Wang, Jie" uniqKey="Wang J" first="Jie" last="Wang">Jie Wang</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Basidiomycota (metabolism)</term>
<term>Biodegradation, Environmental (MeSH)</term>
<term>DDT (metabolism)</term>
<term>Dichlorodiphenyl Dichloroethylene (metabolism)</term>
<term>Dichlorodiphenyldichloroethane (metabolism)</term>
<term>Gas Chromatography-Mass Spectrometry (MeSH)</term>
<term>Mycorrhizae (metabolism)</term>
<term>Soil Pollutants (metabolism)</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>DDT</term>
<term>Dichlorodiphenyl Dichloroethylene</term>
<term>Dichlorodiphenyldichloroethane</term>
<term>Soil Pollutants</term>
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<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Basidiomycota</term>
<term>Mycorrhizae</term>
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<front><div type="abstract" xml:lang="en">One strain of ectomycorrhizal fungi, Xerocomus chrysenteron, had been investigated for its ability to degrade 1,1,1-trichloro-2,2-bis(4-chlorophe-nyl) ethane (DDT) by measuring unlabeled DDT and identifying its metabolites, and determining the mineralization of [(13)C]DDT in pure cultures. After 45d incubation, about 55% of the added DDT disappeared from the culture system, less than 5% remained in the nutrient solution, and about 44% was retained in the mycelium. Inoculation with mycelium enhanced the degradation of DDT in soil, and alleviated enrichment of DDT in plants. The metabolites identified by gas chromatography-mass spectrometry were 1,1-dichloro-2,2-bis(4-chlorophenyl) ethane (DDD), 1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene (DDE), and 4,4'-dichlorobenzophenone (DBP). There were significant differences in the δ(13)C of released CO2 between [(13)C]DDT and DDT cultures, which indicated X. chrysenteron was able to mineralize DDT to CO2. </div>
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<ArticleTitle>Degradation and mineralization of DDT by the ectomycorrhizal fungi, Xerocomus chrysenteron.</ArticleTitle>
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<Abstract><AbstractText>One strain of ectomycorrhizal fungi, Xerocomus chrysenteron, had been investigated for its ability to degrade 1,1,1-trichloro-2,2-bis(4-chlorophe-nyl) ethane (DDT) by measuring unlabeled DDT and identifying its metabolites, and determining the mineralization of [(13)C]DDT in pure cultures. After 45d incubation, about 55% of the added DDT disappeared from the culture system, less than 5% remained in the nutrient solution, and about 44% was retained in the mycelium. Inoculation with mycelium enhanced the degradation of DDT in soil, and alleviated enrichment of DDT in plants. The metabolites identified by gas chromatography-mass spectrometry were 1,1-dichloro-2,2-bis(4-chlorophenyl) ethane (DDD), 1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene (DDE), and 4,4'-dichlorobenzophenone (DBP). There were significant differences in the δ(13)C of released CO2 between [(13)C]DDT and DDT cultures, which indicated X. chrysenteron was able to mineralize DDT to CO2. </AbstractText>
<CopyrightInformation>Copyright © 2013 Elsevier Ltd. All rights reserved.</CopyrightInformation>
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