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Effects of node restriction on cadmium accumulation in eight Chinese wheat (Triticum turgidum) cultivars.
Sci Total Environ. 2020 Jul 10; 725:138358.ST

Abstract

Minimization of cadmium (Cd) accumulation in wheat is an effective method to prevent Cd-related health risks to humans. To understand the underlying mechanisms of restricting Cd transport, the role of nodes in Cd restriction was studied in eight Chinese wheat cultivars. The Cd accumulation differed significantly among the cultivars. The grain Cd concentrations were mainly dependent on the Cd concentrations in the roots and shoots. The Cd transport in the shoots controlled the wheat grain Cd accumulations. Nodes in the wheat stem have distinct functions in the transfer, distribution, and restriction of Cd. The node connected to the panicle showed the lowest translocation factors. The area of the vascular bundles, especially the diffuse vascular bundles, in the junctional node with the flag leaf was the key factor in restricting Cd transfer to the wheat grain. There was a significant relation between these areas and the grain Cd concentrations. The conclusion of this study is that screening or breeding cultivars with low Cd concentrations in the roots or with smaller areas of diffuse vascular bundles in the junctional nodes with the flag leaf is an effective strategy to decrease Cd concentration in wheat grains.

Authors+Show Affiliations

Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China. Electronic address: zhligan@ahau.edu.cn.Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China; Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.Nanjing Institute of Environmental Sciences, Ministry of Ecological Environment, Nanjing 210042, China.Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China. Electronic address: zhoujun@issas.ac.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32464746

Citation

Zhang, Ligan, et al. "Effects of Node Restriction On Cadmium Accumulation in Eight Chinese Wheat (Triticum Turgidum) Cultivars." The Science of the Total Environment, vol. 725, 2020, p. 138358.
Zhang L, Zhang C, Du B, et al. Effects of node restriction on cadmium accumulation in eight Chinese wheat (Triticum turgidum) cultivars. Sci Total Environ. 2020;725:138358.
Zhang, L., Zhang, C., Du, B., Lu, B., Zhou, D., Zhou, J., & Zhou, J. (2020). Effects of node restriction on cadmium accumulation in eight Chinese wheat (Triticum turgidum) cultivars. The Science of the Total Environment, 725, 138358. https://doi.org/10.1016/j.scitotenv.2020.138358
Zhang L, et al. Effects of Node Restriction On Cadmium Accumulation in Eight Chinese Wheat (Triticum Turgidum) Cultivars. Sci Total Environ. 2020 Jul 10;725:138358. PubMed PMID: 32464746.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of node restriction on cadmium accumulation in eight Chinese wheat (Triticum turgidum) cultivars. AU - Zhang,Ligan, AU - Zhang,Chen, AU - Du,Buyun, AU - Lu,Bingxin, AU - Zhou,Dongmei, AU - Zhou,Jing, AU - Zhou,Jun, Y1 - 2020/04/01/ PY - 2020/02/20/received PY - 2020/03/28/revised PY - 2020/03/30/accepted PY - 2020/5/30/entrez PY - 2020/5/30/pubmed PY - 2020/7/11/medline KW - Cadmium KW - Diffuse vascular bundle KW - Internode KW - Node KW - Translocation factor KW - Vascular bundle SP - 138358 EP - 138358 JF - The Science of the total environment JO - Sci Total Environ VL - 725 N2 - Minimization of cadmium (Cd) accumulation in wheat is an effective method to prevent Cd-related health risks to humans. To understand the underlying mechanisms of restricting Cd transport, the role of nodes in Cd restriction was studied in eight Chinese wheat cultivars. The Cd accumulation differed significantly among the cultivars. The grain Cd concentrations were mainly dependent on the Cd concentrations in the roots and shoots. The Cd transport in the shoots controlled the wheat grain Cd accumulations. Nodes in the wheat stem have distinct functions in the transfer, distribution, and restriction of Cd. The node connected to the panicle showed the lowest translocation factors. The area of the vascular bundles, especially the diffuse vascular bundles, in the junctional node with the flag leaf was the key factor in restricting Cd transfer to the wheat grain. There was a significant relation between these areas and the grain Cd concentrations. The conclusion of this study is that screening or breeding cultivars with low Cd concentrations in the roots or with smaller areas of diffuse vascular bundles in the junctional nodes with the flag leaf is an effective strategy to decrease Cd concentration in wheat grains. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/32464746/Effects_of_node_restriction_on_cadmium_accumulation_in_eight_Chinese_wheat__Triticum_turgidum__cultivars_ DB - PRIME DP - Unbound Medicine ER -