Synergistic effects of arbuscular mycorrhizal fungi and phosphate rock on heavy metal uptake and accumulation by an arsenic hyperaccumulator.
Identifieur interne : 002639 ( Main/Curation ); précédent : 002638; suivant : 002640Synergistic effects of arbuscular mycorrhizal fungi and phosphate rock on heavy metal uptake and accumulation by an arsenic hyperaccumulator.
Auteurs : H M Leung [République populaire de Chine] ; F Y Wu ; K C Cheung ; Z H Ye ; M H WongSource :
- Journal of hazardous materials [ 1873-3336 ] ; 2010.
Descripteurs français
- KwdFr :
- MESH :
- composition chimique : Phosphates.
- métabolisme : Cynodon, Mycorhizes, Pteris.
- pharmacocinétique : Arsenic, Métaux lourds, Polluants du sol.
- Dépollution biologique de l'environnement, Synergie des médicaments.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Phosphates.
- chemical , pharmacokinetics : Arsenic, Metals, Heavy, Soil Pollutants.
- metabolism : Cynodon, Mycorrhizae, Pteris.
- Biodegradation, Environmental, Drug Synergism.
Abstract
The effects of arbuscular mycorrhizal (AM) fungi and phosphate rock on the phytorextraction efficiency of a hyperaccumulator (Pteris vittata) and a non-hyperaccumulator (Cynodon dactylon) plant were studied. Both seedlings were planted in As contaminated soil under different treatments [(1) control (contaminated soil only), (2) indigenous mycorrhizas (IM), (3) mixed AM inoculum [indigenous mycorrhiza + Glomus mosseae (IM/Gm)] and (4) IM/Gm + phosphate rock (P rock)] with varying intensities (40%, 70% and 100%) of water moisture content (WMC). Significant As reduction in soil (23.8% of soil As reduction), increase in plant biomass (17.8 g/pot) and As accumulation (2054 mg/kg DW) were observed for P. vittata treated with IM/Gm + PR at 100% WMC level. The overall results indicated that the synergistic effect of mycorrhiza and P rock affected As subcellular distribution of the hyperaccumulator and thereby altered its As removal efficiency under well-watered conditions.
DOI: 10.1016/j.jhazmat.2010.05.042
PubMed: 20541316
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pubmed:20541316Le document en format XML
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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="Ye, Z H" sort="Ye, Z H" uniqKey="Ye Z" first="Z H" last="Ye">Z H Ye</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Arsenic (pharmacokinetics)</term>
<term>Biodegradation, Environmental (MeSH)</term>
<term>Cynodon (metabolism)</term>
<term>Drug Synergism (MeSH)</term>
<term>Metals, Heavy (pharmacokinetics)</term>
<term>Mycorrhizae (metabolism)</term>
<term>Phosphates (chemistry)</term>
<term>Pteris (metabolism)</term>
<term>Soil Pollutants (pharmacokinetics)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Arsenic (pharmacocinétique)</term>
<term>Cynodon (métabolisme)</term>
<term>Dépollution biologique de l'environnement (MeSH)</term>
<term>Mycorhizes (métabolisme)</term>
<term>Métaux lourds (pharmacocinétique)</term>
<term>Phosphates (composition chimique)</term>
<term>Polluants du sol (pharmacocinétique)</term>
<term>Pteris (métabolisme)</term>
<term>Synergie des médicaments (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Phosphates</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="pharmacokinetics" xml:lang="en"><term>Arsenic</term>
<term>Metals, Heavy</term>
<term>Soil Pollutants</term>
</keywords>
<keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Phosphates</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Cynodon</term>
<term>Mycorrhizae</term>
<term>Pteris</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Cynodon</term>
<term>Mycorhizes</term>
<term>Pteris</term>
</keywords>
<keywords scheme="MESH" qualifier="pharmacocinétique" xml:lang="fr"><term>Arsenic</term>
<term>Métaux lourds</term>
<term>Polluants du sol</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Biodegradation, Environmental</term>
<term>Drug Synergism</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr"><term>Dépollution biologique de l'environnement</term>
<term>Synergie des médicaments</term>
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<front><div type="abstract" xml:lang="en">The effects of arbuscular mycorrhizal (AM) fungi and phosphate rock on the phytorextraction efficiency of a hyperaccumulator (Pteris vittata) and a non-hyperaccumulator (Cynodon dactylon) plant were studied. Both seedlings were planted in As contaminated soil under different treatments [(1) control (contaminated soil only), (2) indigenous mycorrhizas (IM), (3) mixed AM inoculum [indigenous mycorrhiza + Glomus mosseae (IM/Gm)] and (4) IM/Gm + phosphate rock (P rock)] with varying intensities (40%, 70% and 100%) of water moisture content (WMC). Significant As reduction in soil (23.8% of soil As reduction), increase in plant biomass (17.8 g/pot) and As accumulation (2054 mg/kg DW) were observed for P. vittata treated with IM/Gm + PR at 100% WMC level. The overall results indicated that the synergistic effect of mycorrhiza and P rock affected As subcellular distribution of the hyperaccumulator and thereby altered its As removal efficiency under well-watered conditions.</div>
</front>
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<Abstract><AbstractText>The effects of arbuscular mycorrhizal (AM) fungi and phosphate rock on the phytorextraction efficiency of a hyperaccumulator (Pteris vittata) and a non-hyperaccumulator (Cynodon dactylon) plant were studied. Both seedlings were planted in As contaminated soil under different treatments [(1) control (contaminated soil only), (2) indigenous mycorrhizas (IM), (3) mixed AM inoculum [indigenous mycorrhiza + Glomus mosseae (IM/Gm)] and (4) IM/Gm + phosphate rock (P rock)] with varying intensities (40%, 70% and 100%) of water moisture content (WMC). Significant As reduction in soil (23.8% of soil As reduction), increase in plant biomass (17.8 g/pot) and As accumulation (2054 mg/kg DW) were observed for P. vittata treated with IM/Gm + PR at 100% WMC level. The overall results indicated that the synergistic effect of mycorrhiza and P rock affected As subcellular distribution of the hyperaccumulator and thereby altered its As removal efficiency under well-watered conditions.</AbstractText>
<CopyrightInformation>Copyright 2010 Elsevier B.V. All rights reserved.</CopyrightInformation>
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