Enhanced dissipation of PAHs from soil using mycorrhizal ryegrass and PAH-degrading bacteria.
Identifieur interne : 002468 ( Main/Corpus ); précédent : 002467; suivant : 002469Enhanced dissipation of PAHs from soil using mycorrhizal ryegrass and PAH-degrading bacteria.
Auteurs : X Z Yu ; S C Wu ; F Y Wu ; M H WongSource :
- Journal of hazardous materials [ 1873-3336 ] ; 2011.
English descriptors
- KwdEn :
- Bacteria (metabolism), Biodegradation, Environmental (MeSH), Catechol Oxidase (chemistry), Catechol Oxidase (metabolism), Lolium (metabolism), Mycorrhizae (metabolism), Peroxidases (chemistry), Peroxidases (metabolism), Phenanthrenes (chemistry), Plant Roots (chemistry), Plant Roots (microbiology), Plant Shoots (chemistry), Plant Shoots (microbiology), Polycyclic Aromatic Hydrocarbons (chemistry), Pyrenes (chemistry), Soil (chemistry), Soil Microbiology (MeSH), Solvents (MeSH).
- MESH :
- chemical , chemistry : Catechol Oxidase, Peroxidases, Phenanthrenes, Polycyclic Aromatic Hydrocarbons, Pyrenes, Soil.
- chemistry : Plant Roots, Plant Shoots.
- metabolism : Bacteria, Catechol Oxidase, Lolium, Mycorrhizae, Peroxidases.
- microbiology : Plant Roots, Plant Shoots.
- Biodegradation, Environmental, Soil Microbiology, Solvents.
Abstract
The major aim of this experiment was to test the effects of a multi-component bioremediation system consisting of ryegrass (Lolium multiflorum), polycyclic aromatic hydrocarbons (PAHs)-degrading bacteria (Acinetobacter sp.), and arbuscular mycorrhizal fungi (Glomus mosseae) for cleaning up PAHs contaminated soil. Higher dissipation rates were observed in combination treatments: i.e., bacteria+ryegrass (BR), mycorrhizae+ryegrass (MR), and bacteria+mycorrhizae+ryegrass (BMR); than bacteria (B) and ryegrass (R) alone. The growth of ryegrass significantly (p<0.05) increased soil peroxidase activities, leading to enhanced dissipation of phenanthrene (PHE) and pyrene (PYR) from soil. Interactions between ryegrass with the two microbes further enhanced the dissipation of PHE and PYR. Mycorrhizal ryegrass (MR) significantly enhanced the dissipation of PYR from soil, PYR accumulation by ryegrass roots and soil peroxidase activities under lower PHE and PYR levels (0 and 50+50 mg kg(-1)). The present results highlighted the contribution of mycorrhiza and PAH-degrading bacteria in phytoremediation of PAH contaminated soil, however more detailed studies are needed.
DOI: 10.1016/j.jhazmat.2010.11.116
PubMed: 21176862
Links to Exploration step
pubmed:21176862Le document en format XML
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<author><name sortKey="Yu, X Z" sort="Yu, X Z" uniqKey="Yu X" first="X Z" last="Yu">X Z Yu</name>
<affiliation><nlm:affiliation>Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.</nlm:affiliation>
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<author><name sortKey="Wu, S C" sort="Wu, S C" uniqKey="Wu S" first="S C" last="Wu">S C Wu</name>
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<author><name sortKey="Wu, F Y" sort="Wu, F Y" uniqKey="Wu F" first="F Y" last="Wu">F Y Wu</name>
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<author><name sortKey="Wong, M H" sort="Wong, M H" uniqKey="Wong M" first="M H" last="Wong">M H Wong</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Enhanced dissipation of PAHs from soil using mycorrhizal ryegrass and PAH-degrading bacteria.</title>
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<affiliation><nlm:affiliation>Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.</nlm:affiliation>
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<author><name sortKey="Wong, M H" sort="Wong, M H" uniqKey="Wong M" first="M H" last="Wong">M H Wong</name>
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<series><title level="j">Journal of hazardous materials</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bacteria (metabolism)</term>
<term>Biodegradation, Environmental (MeSH)</term>
<term>Catechol Oxidase (chemistry)</term>
<term>Catechol Oxidase (metabolism)</term>
<term>Lolium (metabolism)</term>
<term>Mycorrhizae (metabolism)</term>
<term>Peroxidases (chemistry)</term>
<term>Peroxidases (metabolism)</term>
<term>Phenanthrenes (chemistry)</term>
<term>Plant Roots (chemistry)</term>
<term>Plant Roots (microbiology)</term>
<term>Plant Shoots (chemistry)</term>
<term>Plant Shoots (microbiology)</term>
<term>Polycyclic Aromatic Hydrocarbons (chemistry)</term>
<term>Pyrenes (chemistry)</term>
<term>Soil (chemistry)</term>
<term>Soil Microbiology (MeSH)</term>
<term>Solvents (MeSH)</term>
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<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Catechol Oxidase</term>
<term>Peroxidases</term>
<term>Phenanthrenes</term>
<term>Polycyclic Aromatic Hydrocarbons</term>
<term>Pyrenes</term>
<term>Soil</term>
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<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Plant Roots</term>
<term>Plant Shoots</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Bacteria</term>
<term>Catechol Oxidase</term>
<term>Lolium</term>
<term>Mycorrhizae</term>
<term>Peroxidases</term>
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<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Roots</term>
<term>Plant Shoots</term>
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<keywords scheme="MESH" xml:lang="en"><term>Biodegradation, Environmental</term>
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<front><div type="abstract" xml:lang="en">The major aim of this experiment was to test the effects of a multi-component bioremediation system consisting of ryegrass (Lolium multiflorum), polycyclic aromatic hydrocarbons (PAHs)-degrading bacteria (Acinetobacter sp.), and arbuscular mycorrhizal fungi (Glomus mosseae) for cleaning up PAHs contaminated soil. Higher dissipation rates were observed in combination treatments: i.e., bacteria+ryegrass (BR), mycorrhizae+ryegrass (MR), and bacteria+mycorrhizae+ryegrass (BMR); than bacteria (B) and ryegrass (R) alone. The growth of ryegrass significantly (p<0.05) increased soil peroxidase activities, leading to enhanced dissipation of phenanthrene (PHE) and pyrene (PYR) from soil. Interactions between ryegrass with the two microbes further enhanced the dissipation of PHE and PYR. Mycorrhizal ryegrass (MR) significantly enhanced the dissipation of PYR from soil, PYR accumulation by ryegrass roots and soil peroxidase activities under lower PHE and PYR levels (0 and 50+50 mg kg(-1)). The present results highlighted the contribution of mycorrhiza and PAH-degrading bacteria in phytoremediation of PAH contaminated soil, however more detailed studies are needed.</div>
</front>
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<Title>Journal of hazardous materials</Title>
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<ArticleTitle>Enhanced dissipation of PAHs from soil using mycorrhizal ryegrass and PAH-degrading bacteria.</ArticleTitle>
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<Abstract><AbstractText>The major aim of this experiment was to test the effects of a multi-component bioremediation system consisting of ryegrass (Lolium multiflorum), polycyclic aromatic hydrocarbons (PAHs)-degrading bacteria (Acinetobacter sp.), and arbuscular mycorrhizal fungi (Glomus mosseae) for cleaning up PAHs contaminated soil. Higher dissipation rates were observed in combination treatments: i.e., bacteria+ryegrass (BR), mycorrhizae+ryegrass (MR), and bacteria+mycorrhizae+ryegrass (BMR); than bacteria (B) and ryegrass (R) alone. The growth of ryegrass significantly (p<0.05) increased soil peroxidase activities, leading to enhanced dissipation of phenanthrene (PHE) and pyrene (PYR) from soil. Interactions between ryegrass with the two microbes further enhanced the dissipation of PHE and PYR. Mycorrhizal ryegrass (MR) significantly enhanced the dissipation of PYR from soil, PYR accumulation by ryegrass roots and soil peroxidase activities under lower PHE and PYR levels (0 and 50+50 mg kg(-1)). The present results highlighted the contribution of mycorrhiza and PAH-degrading bacteria in phytoremediation of PAH contaminated soil, however more detailed studies are needed.</AbstractText>
<CopyrightInformation>Copyright © 2010 Elsevier B.V. All rights reserved.</CopyrightInformation>
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<ForeName>X Z</ForeName>
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<AffiliationInfo><Affiliation>Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.</Affiliation>
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