Remediation of PAH-contaminated soil by the combination of tall fescue, arbuscular mycorrhizal fungus and epigeic earthworms.
Identifieur interne : 001610 ( Main/Corpus ); précédent : 001609; suivant : 001611Remediation of PAH-contaminated soil by the combination of tall fescue, arbuscular mycorrhizal fungus and epigeic earthworms.
Auteurs : Yan-Fei Lu ; Mang LuSource :
- Journal of hazardous materials [ 1873-3336 ] ; 2015.
English descriptors
- KwdEn :
- Animals (MeSH), Biodegradation, Environmental (MeSH), Catechol Oxidase (metabolism), DNA, Bacterial (analysis), Festuca (growth & development), Festuca (metabolism), Festuca (microbiology), Genes, Bacterial (MeSH), Glomeromycota (metabolism), Mycorrhizae (metabolism), Oligochaeta (metabolism), Plant Roots (growth & development), Plant Roots (metabolism), Plant Roots (microbiology), Plant Shoots (growth & development), Plant Shoots (metabolism), Plant Shoots (microbiology), Polycyclic Aromatic Hydrocarbons (metabolism), Soil Microbiology (MeSH), Soil Pollutants (metabolism).
- MESH :
- chemical , analysis : DNA, Bacterial.
- chemical , metabolism : Catechol Oxidase, Polycyclic Aromatic Hydrocarbons, Soil Pollutants.
- growth & development : Festuca, Plant Roots, Plant Shoots.
- metabolism : Festuca, Glomeromycota, Mycorrhizae, Oligochaeta, Plant Roots, Plant Shoots.
- microbiology : Festuca, Plant Roots, Plant Shoots.
- Animals, Biodegradation, Environmental, Genes, Bacterial, Soil Microbiology.
Abstract
A 120-day experiment was performed to investigate the effect of a multi-component bioremediation system consisting of tall fescue (Festuca arundinacea), arbuscular mycorrhizal fungus (AMF) (Glomus caledoniun L.), and epigeic earthworms (Eisenia foetida) for cleaning up polycyclic aromatic hydrocarbons (PAHs)-contaminated soil. Inoculation with AMF and/or earthworms increased plant yield and PAH accumulation in plants. However, PAH uptake by tall fescue accounted for a negligible portion of soil PAH removal. Mycorrhizal tall fescue significantly enhanced PAH dissipation, PAH degrader density and polyphenol oxidase activity in soil. The highest PAH dissipation (93.4%) was observed in the combination treatment: i.e., AMF+earthworms+tall fescue, in which the soil PAH concentration decreased from an initial value of 620 to 41 mg kg(-1) in 120 days. This concentration is below the threshold level required for Chinese soil PAH quality (45 mg kg(-1) dry weight) for residential use.
DOI: 10.1016/j.jhazmat.2014.07.021
PubMed: 25534968
Links to Exploration step
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<author><name sortKey="Lu, Yan Fei" sort="Lu, Yan Fei" uniqKey="Lu Y" first="Yan-Fei" last="Lu">Yan-Fei Lu</name>
<affiliation><nlm:affiliation>School of Information and Engineering, Jiangxi Agricultural University, Nanchang 330045, China. Electronic address: luyanfei819@163.com.</nlm:affiliation>
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<author><name sortKey="Lu, Mang" sort="Lu, Mang" uniqKey="Lu M" first="Mang" last="Lu">Mang Lu</name>
<affiliation><nlm:affiliation>School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, China.</nlm:affiliation>
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<author><name sortKey="Lu, Yan Fei" sort="Lu, Yan Fei" uniqKey="Lu Y" first="Yan-Fei" last="Lu">Yan-Fei Lu</name>
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<author><name sortKey="Lu, Mang" sort="Lu, Mang" uniqKey="Lu M" first="Mang" last="Lu">Mang Lu</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals (MeSH)</term>
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<term>Catechol Oxidase (metabolism)</term>
<term>DNA, Bacterial (analysis)</term>
<term>Festuca (growth & development)</term>
<term>Festuca (metabolism)</term>
<term>Festuca (microbiology)</term>
<term>Genes, Bacterial (MeSH)</term>
<term>Glomeromycota (metabolism)</term>
<term>Mycorrhizae (metabolism)</term>
<term>Oligochaeta (metabolism)</term>
<term>Plant Roots (growth & development)</term>
<term>Plant Roots (metabolism)</term>
<term>Plant Roots (microbiology)</term>
<term>Plant Shoots (growth & development)</term>
<term>Plant Shoots (metabolism)</term>
<term>Plant Shoots (microbiology)</term>
<term>Polycyclic Aromatic Hydrocarbons (metabolism)</term>
<term>Soil Microbiology (MeSH)</term>
<term>Soil Pollutants (metabolism)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>DNA, Bacterial</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Catechol Oxidase</term>
<term>Polycyclic Aromatic Hydrocarbons</term>
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<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Festuca</term>
<term>Plant Roots</term>
<term>Plant Shoots</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Festuca</term>
<term>Glomeromycota</term>
<term>Mycorrhizae</term>
<term>Oligochaeta</term>
<term>Plant Roots</term>
<term>Plant Shoots</term>
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<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Festuca</term>
<term>Plant Roots</term>
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<keywords scheme="MESH" xml:lang="en"><term>Animals</term>
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<front><div type="abstract" xml:lang="en">A 120-day experiment was performed to investigate the effect of a multi-component bioremediation system consisting of tall fescue (Festuca arundinacea), arbuscular mycorrhizal fungus (AMF) (Glomus caledoniun L.), and epigeic earthworms (Eisenia foetida) for cleaning up polycyclic aromatic hydrocarbons (PAHs)-contaminated soil. Inoculation with AMF and/or earthworms increased plant yield and PAH accumulation in plants. However, PAH uptake by tall fescue accounted for a negligible portion of soil PAH removal. Mycorrhizal tall fescue significantly enhanced PAH dissipation, PAH degrader density and polyphenol oxidase activity in soil. The highest PAH dissipation (93.4%) was observed in the combination treatment: i.e., AMF+earthworms+tall fescue, in which the soil PAH concentration decreased from an initial value of 620 to 41 mg kg(-1) in 120 days. This concentration is below the threshold level required for Chinese soil PAH quality (45 mg kg(-1) dry weight) for residential use.</div>
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<Abstract><AbstractText>A 120-day experiment was performed to investigate the effect of a multi-component bioremediation system consisting of tall fescue (Festuca arundinacea), arbuscular mycorrhizal fungus (AMF) (Glomus caledoniun L.), and epigeic earthworms (Eisenia foetida) for cleaning up polycyclic aromatic hydrocarbons (PAHs)-contaminated soil. Inoculation with AMF and/or earthworms increased plant yield and PAH accumulation in plants. However, PAH uptake by tall fescue accounted for a negligible portion of soil PAH removal. Mycorrhizal tall fescue significantly enhanced PAH dissipation, PAH degrader density and polyphenol oxidase activity in soil. The highest PAH dissipation (93.4%) was observed in the combination treatment: i.e., AMF+earthworms+tall fescue, in which the soil PAH concentration decreased from an initial value of 620 to 41 mg kg(-1) in 120 days. This concentration is below the threshold level required for Chinese soil PAH quality (45 mg kg(-1) dry weight) for residential use.</AbstractText>
<CopyrightInformation>Copyright © 2014 Elsevier B.V. All rights reserved.</CopyrightInformation>
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<ForeName>Yan-Fei</ForeName>
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