Arsenic uptake by arbuscular mycorrhizal maize (Zea mays L.) grown in an arsenic-contaminated soil with added phosphorus.
Identifieur interne : 003078 ( Main/Exploration ); précédent : 003077; suivant : 003079Arsenic uptake by arbuscular mycorrhizal maize (Zea mays L.) grown in an arsenic-contaminated soil with added phosphorus.
Auteurs : Yun-Sheng Xia [République populaire de Chine] ; Bao-Dong Chen ; Peter Christie ; F Andrew Smith ; You-Shan Wang ; Xiao-Lin LiSource :
- Journal of environmental sciences (China) [ 1001-0742 ] ; 2007.
Descripteurs français
- KwdFr :
- Arsenic (métabolisme), Concentration en ions d'hydrogène (MeSH), Dépollution biologique de l'environnement (effets des médicaments et des substances chimiques), Microbiologie du sol (MeSH), Mycorhizes (croissance et développement), Mycorhizes (effets des médicaments et des substances chimiques), Mycorhizes (métabolisme), Phosphore (pharmacologie), Polluants du sol (métabolisme), Racines de plante (effets des médicaments et des substances chimiques), Racines de plante (microbiologie), Racines de plante (métabolisme), Zea mays (effets des médicaments et des substances chimiques), Zea mays (microbiologie), Zea mays (métabolisme).
- MESH :
- croissance et développement : Mycorhizes.
- effets des médicaments et des substances chimiques : Dépollution biologique de l'environnement, Mycorhizes, Racines de plante, Zea mays.
- microbiologie : Racines de plante, Zea mays.
- métabolisme : Arsenic, Mycorhizes, Polluants du sol, Racines de plante, Zea mays.
- pharmacologie : Phosphore.
- Concentration en ions d'hydrogène, Microbiologie du sol.
English descriptors
- KwdEn :
- Arsenic (metabolism), Biodegradation, Environmental (drug effects), Hydrogen-Ion Concentration (MeSH), Mycorrhizae (drug effects), Mycorrhizae (growth & development), Mycorrhizae (metabolism), Phosphorus (pharmacology), Plant Roots (drug effects), Plant Roots (metabolism), Plant Roots (microbiology), Soil Microbiology (MeSH), Soil Pollutants (metabolism), Zea mays (drug effects), Zea mays (metabolism), Zea mays (microbiology).
- MESH :
- chemical , metabolism : Arsenic, Soil Pollutants.
- drug effects : Biodegradation, Environmental, Mycorrhizae, Plant Roots, Zea mays.
- growth & development : Mycorrhizae.
- metabolism : Mycorrhizae, Plant Roots, Zea mays.
- microbiology : Plant Roots, Zea mays.
- chemical , pharmacology : Phosphorus.
- Hydrogen-Ion Concentration, Soil Microbiology.
Abstract
The effects of arbuscular mycorrhizal (AM) fungus (Glomus mosseae) and phosphorus (P) addition (100 mg/kg soil) on arsenic (As) uptake by maize plants (Zea mays L.) from an As-contaminated soil were examined in a glasshouse experiment. Non-mycorrhizal and zero-P addition controls were included. Plant biomass and concentrations and uptake of As, P, and other nutrients, AM colonization, root lengths, and hyphal length densities were determined. The results indicated that addition of P significantly inhibited root colonization and development of extraradical mycelium. Root length and dry weight both increased markedly with mycorrhizal colonization under the zero-P treatments, but shoot and root biomass of AM plants was depressed by P application. AM fungal inoculation decreased shoot As concentrations when no P was added, and shoot and root As concentrations of AM plants increased 2.6 and 1.4 times with P addition, respectively. Shoot and root uptake of P, Mn, Cu, and Zn increased, but shoot Fe uptake decreased by 44.6%, with inoculation, when P was added. P addition reduced shoot P, Fe, Mn, Cu, and Zn uptake of AM plants, but increased root Fe and Mn uptake of the nonmycorrhizal ones. AM colonization therefore appeared to enhance plant tolerance to As in low P soil, and have some potential for the phytostabilization of As-contaminated soil, however, P application may introduce additional environmental risk by increasing soil As mobility.
DOI: 10.1016/s1001-0742(07)60203-4
PubMed: 18062425
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Arsenic (metabolism)</term>
<term>Biodegradation, Environmental (drug effects)</term>
<term>Hydrogen-Ion Concentration (MeSH)</term>
<term>Mycorrhizae (drug effects)</term>
<term>Mycorrhizae (growth & development)</term>
<term>Mycorrhizae (metabolism)</term>
<term>Phosphorus (pharmacology)</term>
<term>Plant Roots (drug effects)</term>
<term>Plant Roots (metabolism)</term>
<term>Plant Roots (microbiology)</term>
<term>Soil Microbiology (MeSH)</term>
<term>Soil Pollutants (metabolism)</term>
<term>Zea mays (drug effects)</term>
<term>Zea mays (metabolism)</term>
<term>Zea mays (microbiology)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Arsenic (métabolisme)</term>
<term>Concentration en ions d'hydrogène (MeSH)</term>
<term>Dépollution biologique de l'environnement (effets des médicaments et des substances chimiques)</term>
<term>Microbiologie du sol (MeSH)</term>
<term>Mycorhizes (croissance et développement)</term>
<term>Mycorhizes (effets des médicaments et des substances chimiques)</term>
<term>Mycorhizes (métabolisme)</term>
<term>Phosphore (pharmacologie)</term>
<term>Polluants du sol (métabolisme)</term>
<term>Racines de plante (effets des médicaments et des substances chimiques)</term>
<term>Racines de plante (microbiologie)</term>
<term>Racines de plante (métabolisme)</term>
<term>Zea mays (effets des médicaments et des substances chimiques)</term>
<term>Zea mays (microbiologie)</term>
<term>Zea mays (métabolisme)</term>
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<term>Soil Pollutants</term>
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</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Biodegradation, Environmental</term>
<term>Mycorrhizae</term>
<term>Plant Roots</term>
<term>Zea mays</term>
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<term>Mycorhizes</term>
<term>Racines de plante</term>
<term>Zea mays</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Mycorrhizae</term>
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<term>Plant Roots</term>
<term>Zea mays</term>
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<term>Zea mays</term>
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<term>Zea mays</term>
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<term>Mycorhizes</term>
<term>Polluants du sol</term>
<term>Racines de plante</term>
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<keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Phosphore</term>
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<keywords scheme="MESH" xml:lang="en"><term>Hydrogen-Ion Concentration</term>
<term>Soil Microbiology</term>
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<front><div type="abstract" xml:lang="en">The effects of arbuscular mycorrhizal (AM) fungus (Glomus mosseae) and phosphorus (P) addition (100 mg/kg soil) on arsenic (As) uptake by maize plants (Zea mays L.) from an As-contaminated soil were examined in a glasshouse experiment. Non-mycorrhizal and zero-P addition controls were included. Plant biomass and concentrations and uptake of As, P, and other nutrients, AM colonization, root lengths, and hyphal length densities were determined. The results indicated that addition of P significantly inhibited root colonization and development of extraradical mycelium. Root length and dry weight both increased markedly with mycorrhizal colonization under the zero-P treatments, but shoot and root biomass of AM plants was depressed by P application. AM fungal inoculation decreased shoot As concentrations when no P was added, and shoot and root As concentrations of AM plants increased 2.6 and 1.4 times with P addition, respectively. Shoot and root uptake of P, Mn, Cu, and Zn increased, but shoot Fe uptake decreased by 44.6%, with inoculation, when P was added. P addition reduced shoot P, Fe, Mn, Cu, and Zn uptake of AM plants, but increased root Fe and Mn uptake of the nonmycorrhizal ones. AM colonization therefore appeared to enhance plant tolerance to As in low P soil, and have some potential for the phytostabilization of As-contaminated soil, however, P application may introduce additional environmental risk by increasing soil As mobility.</div>
</front>
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<Abstract><AbstractText>The effects of arbuscular mycorrhizal (AM) fungus (Glomus mosseae) and phosphorus (P) addition (100 mg/kg soil) on arsenic (As) uptake by maize plants (Zea mays L.) from an As-contaminated soil were examined in a glasshouse experiment. Non-mycorrhizal and zero-P addition controls were included. Plant biomass and concentrations and uptake of As, P, and other nutrients, AM colonization, root lengths, and hyphal length densities were determined. The results indicated that addition of P significantly inhibited root colonization and development of extraradical mycelium. Root length and dry weight both increased markedly with mycorrhizal colonization under the zero-P treatments, but shoot and root biomass of AM plants was depressed by P application. AM fungal inoculation decreased shoot As concentrations when no P was added, and shoot and root As concentrations of AM plants increased 2.6 and 1.4 times with P addition, respectively. Shoot and root uptake of P, Mn, Cu, and Zn increased, but shoot Fe uptake decreased by 44.6%, with inoculation, when P was added. P addition reduced shoot P, Fe, Mn, Cu, and Zn uptake of AM plants, but increased root Fe and Mn uptake of the nonmycorrhizal ones. AM colonization therefore appeared to enhance plant tolerance to As in low P soil, and have some potential for the phytostabilization of As-contaminated soil, however, P application may introduce additional environmental risk by increasing soil As mobility.</AbstractText>
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<name sortKey="Li, Xiao Lin" sort="Li, Xiao Lin" uniqKey="Li X" first="Xiao-Lin" last="Li">Xiao-Lin Li</name>
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<name sortKey="Wang, You Shan" sort="Wang, You Shan" uniqKey="Wang Y" first="You-Shan" last="Wang">You-Shan Wang</name>
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<country name="République populaire de Chine"><noRegion><name sortKey="Xia, Yun Sheng" sort="Xia, Yun Sheng" uniqKey="Xia Y" first="Yun-Sheng" last="Xia">Yun-Sheng Xia</name>
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