Enhanced phytoremediation of uranium-contaminated soils by arbuscular mycorrhiza and rhizobium.
Identifieur interne : 000667 ( Main/Corpus ); précédent : 000666; suivant : 000668Enhanced phytoremediation of uranium-contaminated soils by arbuscular mycorrhiza and rhizobium.
Auteurs : Cheng-Gang Ren ; Cun-Cui Kong ; Shuo-Xiang Wang ; Zhi-Hong XieSource :
- Chemosphere [ 1879-1298 ] ; 2019.
English descriptors
- KwdEn :
- Aminoacyltransferases (metabolism), Biodegradation, Environmental (MeSH), Biomass (MeSH), Fabaceae (metabolism), Mycorrhizae (metabolism), Plant Roots (metabolism), Rhizobium (metabolism), Sesbania (enzymology), Sesbania (metabolism), Sesbania (microbiology), Soil Pollutants (analysis), Soil Pollutants (pharmacokinetics), Symbiosis (MeSH), Uranium (pharmacokinetics).
- MESH :
- chemical , analysis : Soil Pollutants.
- chemical , metabolism : Aminoacyltransferases.
- enzymology : Sesbania.
- metabolism : Fabaceae, Mycorrhizae, Plant Roots, Rhizobium, Sesbania.
- microbiology : Sesbania.
- chemical , pharmacokinetics : Soil Pollutants, Uranium.
- Biodegradation, Environmental, Biomass, Symbiosis.
Abstract
Uranium phytoextraction is a promising technology, however, facing difficult that limited plant biomass due to nutrient deficiency in the contaminated sites. The aim of this study is to evaluate the potential of a symbiotic associations of a legume Sesbania rostrata, rhizobia and arbuscular mycorrhiza fungi (AMF) for reclamation of uranium contaminated soils. Results showed AMF and rhizobia had a mutual beneficial relations in the triple symbiosis, which significantly increased plant biomass and uranium accumulation in S. rostrata plant. The highest uranium removal rates was observed in plant-AMF-rhizobia treated soils, in which 50.5-73.2% had been extracted, whereas 7.2-23.3% had been extracted in plant-treated soil. Also, the S. rostrata phytochelatin synthase (PCS) genes expression were increased in AMF and rhizobia plants compared with the plants. Meantime, content of malic acid, succinic acid and citric acid were elevated in S. rostrata root exudates of AMF and rhizobia inoculated plants. The facts suggest that the mutual interactions in the triple symbiosis help to improve phytoremediation efficiency of uranium by S. rostrata.
DOI: 10.1016/j.chemosphere.2018.11.085
PubMed: 30448757
Links to Exploration step
pubmed:30448757Le document en format XML
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<author><name sortKey="Ren, Cheng Gang" sort="Ren, Cheng Gang" uniqKey="Ren C" first="Cheng-Gang" last="Ren">Cheng-Gang Ren</name>
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<author><name sortKey="Kong, Cun Cui" sort="Kong, Cun Cui" uniqKey="Kong C" first="Cun-Cui" last="Kong">Cun-Cui Kong</name>
<affiliation><nlm:affiliation>College of Marine Life Sciences, Ocean University of China, Qingdao, PR China.</nlm:affiliation>
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<author><name sortKey="Wang, Shuo Xiang" sort="Wang, Shuo Xiang" uniqKey="Wang S" first="Shuo-Xiang" last="Wang">Shuo-Xiang Wang</name>
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<term>Fabaceae (metabolism)</term>
<term>Mycorrhizae (metabolism)</term>
<term>Plant Roots (metabolism)</term>
<term>Rhizobium (metabolism)</term>
<term>Sesbania (enzymology)</term>
<term>Sesbania (metabolism)</term>
<term>Sesbania (microbiology)</term>
<term>Soil Pollutants (analysis)</term>
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<front><div type="abstract" xml:lang="en">Uranium phytoextraction is a promising technology, however, facing difficult that limited plant biomass due to nutrient deficiency in the contaminated sites. The aim of this study is to evaluate the potential of a symbiotic associations of a legume Sesbania rostrata, rhizobia and arbuscular mycorrhiza fungi (AMF) for reclamation of uranium contaminated soils. Results showed AMF and rhizobia had a mutual beneficial relations in the triple symbiosis, which significantly increased plant biomass and uranium accumulation in S. rostrata plant. The highest uranium removal rates was observed in plant-AMF-rhizobia treated soils, in which 50.5-73.2% had been extracted, whereas 7.2-23.3% had been extracted in plant-treated soil. Also, the S. rostrata phytochelatin synthase (PCS) genes expression were increased in AMF and rhizobia plants compared with the plants. Meantime, content of malic acid, succinic acid and citric acid were elevated in S. rostrata root exudates of AMF and rhizobia inoculated plants. The facts suggest that the mutual interactions in the triple symbiosis help to improve phytoremediation efficiency of uranium by S. rostrata.</div>
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<Abstract><AbstractText>Uranium phytoextraction is a promising technology, however, facing difficult that limited plant biomass due to nutrient deficiency in the contaminated sites. The aim of this study is to evaluate the potential of a symbiotic associations of a legume Sesbania rostrata, rhizobia and arbuscular mycorrhiza fungi (AMF) for reclamation of uranium contaminated soils. Results showed AMF and rhizobia had a mutual beneficial relations in the triple symbiosis, which significantly increased plant biomass and uranium accumulation in S. rostrata plant. The highest uranium removal rates was observed in plant-AMF-rhizobia treated soils, in which 50.5-73.2% had been extracted, whereas 7.2-23.3% had been extracted in plant-treated soil. Also, the S. rostrata phytochelatin synthase (PCS) genes expression were increased in AMF and rhizobia plants compared with the plants. Meantime, content of malic acid, succinic acid and citric acid were elevated in S. rostrata root exudates of AMF and rhizobia inoculated plants. The facts suggest that the mutual interactions in the triple symbiosis help to improve phytoremediation efficiency of uranium by S. rostrata.</AbstractText>
<CopyrightInformation>Copyright © 2018 Elsevier Ltd. All rights reserved.</CopyrightInformation>
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