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Does arbuscular mycorrhizal fungus affect cadmium uptake and chemical forms in rice at different growth stages?
Sci Total Environ. 2017 Dec 01; 599-600:1564-1572.ST

Abstract

Effects of the arbuscular mycorrhizal fungus (AMF) - Rhizophagus intraradices (a mix of root pieces, mycelium pieces and spores) on the temporal variation of Cd uptake and chemical forms in rice at four growth periods (tillering, jointing, flowering, and ripening stages) were investigated in soil added with 0, 2 and 10mgCdkg[-1]. Results showed that the interactions amongst rice growth stages, soil Cd concentrations and mycorrhizal inoculation had significant effects (P˂0.001) on root biomass, straw and root Cd concentrations, and straw Cd chemical forms in rice. Root colonization rates fluctuated with growth stages, reaching its peak at jointing stage and then decreasing at flowering and ripening stages. AMF increased the grain yield in rice plant grown in soil added with 10mgCdkg[-1], whereas no effect was found in soil added with 2mgCdkg[-1]. In soil added with 2mgCdkg[-1], the concentrations of ethanol and d-H2O extractable Cd at flowering stage was significantly reduced in mycorrhizal treatments, which subsequently induce less Cd accumulation in grains due to the positive correlations between ethanol or d-H2O extractable Cd and grain Cd concentrations at flowering stage. In soil added with 10mgCdkg[-1], AMF significantly elevated the proportions of NaCl extractable Cd at ripening stage which also lead to the reduced grain Cd concentrations, since there was a negative correlation between the percentage of NaCl extractable Cd and grain Cd concentration at this stage. Our study indicated that flowering and ripening stages were important periods for AMF to limit the grain Cd concentrations in rice, when grown in Cd-contaminated soil.

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Authors+Show Affiliations

Luo N
Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China.
Li X
Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China.
Chen AY
Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China.
Zhang LJ
Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China.
Zhao HM
Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China.
Xiang L
Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China.
Cai QY
Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China.
Mo CH
Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China. Electronic address: tchmo@jnu.edu.cn.
Wong MH
Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China; Consortium on Environment, Health, Education and Research (CHEER), Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong, SAR, PR China.
Li H
Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China. Electronic address: lihuizsu@126.com.

MeSH

CadmiumGlomeromycotaMycorrhizaeOryzaPlant RootsSoilSoil Pollutants

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28531965

Citation

Luo, Na, et al. "Does Arbuscular Mycorrhizal Fungus Affect Cadmium Uptake and Chemical Forms in Rice at Different Growth Stages?" The Science of the Total Environment, vol. 599-600, 2017, pp. 1564-1572.
Luo N, Li X, Chen AY, et al. Does arbuscular mycorrhizal fungus affect cadmium uptake and chemical forms in rice at different growth stages? Sci Total Environ. 2017;599-600:1564-1572.
Luo, N., Li, X., Chen, A. Y., Zhang, L. J., Zhao, H. M., Xiang, L., Cai, Q. Y., Mo, C. H., Wong, M. H., & Li, H. (2017). Does arbuscular mycorrhizal fungus affect cadmium uptake and chemical forms in rice at different growth stages? The Science of the Total Environment, 599-600, 1564-1572. https://doi.org/10.1016/j.scitotenv.2017.05.047
Luo N, et al. Does Arbuscular Mycorrhizal Fungus Affect Cadmium Uptake and Chemical Forms in Rice at Different Growth Stages. Sci Total Environ. 2017 Dec 1;599-600:1564-1572. PubMed PMID: 28531965.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Does arbuscular mycorrhizal fungus affect cadmium uptake and chemical forms in rice at different growth stages? AU - Luo,Na, AU - Li,Xing, AU - Chen,Ao Yu, AU - Zhang,Li Jun, AU - Zhao,Hai Ming, AU - Xiang,Lei, AU - Cai,Quan Ying, AU - Mo,Ce Hui, AU - Wong,Ming Hung, AU - Li,Hui, Y1 - 2017/05/18/ PY - 2017/02/21/received PY - 2017/05/05/revised PY - 2017/05/05/accepted PY - 2017/5/24/pubmed PY - 2018/8/4/medline PY - 2017/5/24/entrez KW - Growth period KW - Heavy metal KW - Oryza sativa L KW - Rhizophagus intraradices SP - 1564 EP - 1572 JF - The Science of the total environment JO - Sci Total Environ VL - 599-600 N2 - Effects of the arbuscular mycorrhizal fungus (AMF) - Rhizophagus intraradices (a mix of root pieces, mycelium pieces and spores) on the temporal variation of Cd uptake and chemical forms in rice at four growth periods (tillering, jointing, flowering, and ripening stages) were investigated in soil added with 0, 2 and 10mgCdkg[-1]. Results showed that the interactions amongst rice growth stages, soil Cd concentrations and mycorrhizal inoculation had significant effects (P˂0.001) on root biomass, straw and root Cd concentrations, and straw Cd chemical forms in rice. Root colonization rates fluctuated with growth stages, reaching its peak at jointing stage and then decreasing at flowering and ripening stages. AMF increased the grain yield in rice plant grown in soil added with 10mgCdkg[-1], whereas no effect was found in soil added with 2mgCdkg[-1]. In soil added with 2mgCdkg[-1], the concentrations of ethanol and d-H2O extractable Cd at flowering stage was significantly reduced in mycorrhizal treatments, which subsequently induce less Cd accumulation in grains due to the positive correlations between ethanol or d-H2O extractable Cd and grain Cd concentrations at flowering stage. In soil added with 10mgCdkg[-1], AMF significantly elevated the proportions of NaCl extractable Cd at ripening stage which also lead to the reduced grain Cd concentrations, since there was a negative correlation between the percentage of NaCl extractable Cd and grain Cd concentration at this stage. Our study indicated that flowering and ripening stages were important periods for AMF to limit the grain Cd concentrations in rice, when grown in Cd-contaminated soil. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/28531965/Does_arbuscular_mycorrhizal_fungus_affect_cadmium_uptake_and_chemical_forms_in_rice_at_different_growth_stages DB - PRIME DP - Unbound Medicine ER -