Iron ore weathering potentials of ectomycorrhizal plants.
Identifieur interne : 002065 ( Main/Corpus ); précédent : 002064; suivant : 002066Iron ore weathering potentials of ectomycorrhizal plants.
Auteurs : R A Adeleke ; T E Cloete ; A. Bertrand ; D P KhasaSource :
- Mycorrhiza [ 1432-1890 ] ; 2012.
English descriptors
- KwdEn :
- Biological Transport (MeSH), Citric Acid (analysis), Citric Acid (metabolism), Hydrogen-Ion Concentration (MeSH), Iron (metabolism), Iron Compounds (metabolism), Laccaria (growth & development), Laccaria (metabolism), Microbiological Techniques (methods), Mycorrhizae (growth & development), Mycorrhizae (metabolism), Oxalic Acid (analysis), Oxalic Acid (metabolism), Phosphorus (metabolism), Pinus (growth & development), Pinus (metabolism), Pinus (microbiology), Plant Roots (metabolism), Plant Roots (microbiology), Potassium (metabolism), Soil (analysis), Soil Microbiology (MeSH), Species Specificity (MeSH), Symbiosis (MeSH).
- MESH :
- chemical , analysis : Citric Acid, Oxalic Acid, Soil.
- chemical , metabolism : Citric Acid, Iron, Iron Compounds, Oxalic Acid, Phosphorus, Potassium.
- growth & development : Laccaria, Mycorrhizae, Pinus.
- metabolism : Laccaria, Mycorrhizae, Pinus, Plant Roots.
- methods : Microbiological Techniques.
- microbiology : Pinus, Plant Roots.
- Biological Transport, Hydrogen-Ion Concentration, Soil Microbiology, Species Specificity, Symbiosis.
Abstract
Plants in association with soil microorganisms play an important role in mineral weathering. Studies have shown that plants in symbiosis with ectomycorrhizal (ECM) fungi have the potential to increase the uptake of mineral-derived nutrients. However, it is usually difficult to study many of the different factors that influence ectomycorrhizal weathering in a single experiment. In the present study, we carried out a pot experiment where Pinus patula seedlings were grown with or without ECM fungi in the presence of iron ore minerals. The ECM fungi used included Pisolithus tinctorius, Paxillus involutus, Laccaria bicolor and Suillus tomentosus. After 24 weeks, harvesting of the plants was carried out. The concentration of organic acids released into the soil, as well as potassium and phosphorus released from the iron ore were measured. The results suggest that different roles of ectomycorrhizal fungi in mineral weathering such as nutrient absorption and transfer, improving the health of plants and ensuring nutrient circulation in the ecosystem, are species specific, and both mycorrhizal roots and non-mycorrhizal roots can participate in the weathering process of iron ore minerals.
DOI: 10.1007/s00572-012-0431-5
PubMed: 22349958
Links to Exploration step
pubmed:22349958Le document en format XML
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<author><name sortKey="Adeleke, R A" sort="Adeleke, R A" uniqKey="Adeleke R" first="R A" last="Adeleke">R A Adeleke</name>
<affiliation><nlm:affiliation>Department of Microbiology and Plant Pathology, University of Pretoria, New Agriculture Building, Lunnon Road, Hillcrest, 0083 Pretoria, South Africa. rasheed.adeleke@tuks.co.za</nlm:affiliation>
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<author><name sortKey="Cloete, T E" sort="Cloete, T E" uniqKey="Cloete T" first="T E" last="Cloete">T E Cloete</name>
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<author><name sortKey="Bertrand, A" sort="Bertrand, A" uniqKey="Bertrand A" first="A" last="Bertrand">A. Bertrand</name>
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<author><name sortKey="Khasa, D P" sort="Khasa, D P" uniqKey="Khasa D" first="D P" last="Khasa">D P Khasa</name>
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<author><name sortKey="Bertrand, A" sort="Bertrand, A" uniqKey="Bertrand A" first="A" last="Bertrand">A. Bertrand</name>
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<author><name sortKey="Khasa, D P" sort="Khasa, D P" uniqKey="Khasa D" first="D P" last="Khasa">D P Khasa</name>
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<series><title level="j">Mycorrhiza</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biological Transport (MeSH)</term>
<term>Citric Acid (analysis)</term>
<term>Citric Acid (metabolism)</term>
<term>Hydrogen-Ion Concentration (MeSH)</term>
<term>Iron (metabolism)</term>
<term>Iron Compounds (metabolism)</term>
<term>Laccaria (growth & development)</term>
<term>Laccaria (metabolism)</term>
<term>Microbiological Techniques (methods)</term>
<term>Mycorrhizae (growth & development)</term>
<term>Mycorrhizae (metabolism)</term>
<term>Oxalic Acid (analysis)</term>
<term>Oxalic Acid (metabolism)</term>
<term>Phosphorus (metabolism)</term>
<term>Pinus (growth & development)</term>
<term>Pinus (metabolism)</term>
<term>Pinus (microbiology)</term>
<term>Plant Roots (metabolism)</term>
<term>Plant Roots (microbiology)</term>
<term>Potassium (metabolism)</term>
<term>Soil (analysis)</term>
<term>Soil Microbiology (MeSH)</term>
<term>Species Specificity (MeSH)</term>
<term>Symbiosis (MeSH)</term>
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<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Citric Acid</term>
<term>Oxalic Acid</term>
<term>Soil</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Citric Acid</term>
<term>Iron</term>
<term>Iron Compounds</term>
<term>Oxalic Acid</term>
<term>Phosphorus</term>
<term>Potassium</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Laccaria</term>
<term>Mycorrhizae</term>
<term>Pinus</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Laccaria</term>
<term>Mycorrhizae</term>
<term>Pinus</term>
<term>Plant Roots</term>
</keywords>
<keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Microbiological Techniques</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Pinus</term>
<term>Plant Roots</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Biological Transport</term>
<term>Hydrogen-Ion Concentration</term>
<term>Soil Microbiology</term>
<term>Species Specificity</term>
<term>Symbiosis</term>
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<front><div type="abstract" xml:lang="en">Plants in association with soil microorganisms play an important role in mineral weathering. Studies have shown that plants in symbiosis with ectomycorrhizal (ECM) fungi have the potential to increase the uptake of mineral-derived nutrients. However, it is usually difficult to study many of the different factors that influence ectomycorrhizal weathering in a single experiment. In the present study, we carried out a pot experiment where Pinus patula seedlings were grown with or without ECM fungi in the presence of iron ore minerals. The ECM fungi used included Pisolithus tinctorius, Paxillus involutus, Laccaria bicolor and Suillus tomentosus. After 24 weeks, harvesting of the plants was carried out. The concentration of organic acids released into the soil, as well as potassium and phosphorus released from the iron ore were measured. The results suggest that different roles of ectomycorrhizal fungi in mineral weathering such as nutrient absorption and transfer, improving the health of plants and ensuring nutrient circulation in the ecosystem, are species specific, and both mycorrhizal roots and non-mycorrhizal roots can participate in the weathering process of iron ore minerals.</div>
</front>
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<Abstract><AbstractText>Plants in association with soil microorganisms play an important role in mineral weathering. Studies have shown that plants in symbiosis with ectomycorrhizal (ECM) fungi have the potential to increase the uptake of mineral-derived nutrients. However, it is usually difficult to study many of the different factors that influence ectomycorrhizal weathering in a single experiment. In the present study, we carried out a pot experiment where Pinus patula seedlings were grown with or without ECM fungi in the presence of iron ore minerals. The ECM fungi used included Pisolithus tinctorius, Paxillus involutus, Laccaria bicolor and Suillus tomentosus. After 24 weeks, harvesting of the plants was carried out. The concentration of organic acids released into the soil, as well as potassium and phosphorus released from the iron ore were measured. The results suggest that different roles of ectomycorrhizal fungi in mineral weathering such as nutrient absorption and transfer, improving the health of plants and ensuring nutrient circulation in the ecosystem, are species specific, and both mycorrhizal roots and non-mycorrhizal roots can participate in the weathering process of iron ore minerals.</AbstractText>
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