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Heavy metal distribution in wheat plant components following foliar Cd application.
Chemosphere. 2023 May; 322:138177.C

Abstract

Atmospheric deposition of Cd, from anthropogenic activities, can be directly deposited onto and absorbed into wheat plants, yet, how foliar absorbed Cd is translocated in wheat plants is not well understood. A pot experiment investigated foliar Cd application on the accumulation and distribution of heavy metals in various wheat parts. Wheat was grown in a Cd/heavy metal contaminated soil, and from grain heading to the filling stage, 0, 10, 20, 30 and 40 mg kg-1 Cd solution was sprayed repeatedly on leaves (grain heads were covered). Foliar Cd application had no effect on grain yield and Cd concentration (3.01-3.51 mg kg-1 for all treatments), while increased flag leaf blade and sheath Cd concentrations by 1.06-2.77 and 0.00-0.66 times, respectively. Cadmium concentration in the center of the peduncle, from the 40 mg kg-1 Cd solution treatment, was 1.41 times that of the control (10.3 vs 7.30 mg kg-1). Foliar Cd application also increased Cd accumulation (concentration × mass) of the flag leaf blade and sheath. Rachis and grain Pb concentrations were reduced, while stem Pb concentration was increased by Cd application. Cadmium application negatively affected whole plant Ni accumulation and concentration of certain wheat parts; Ni absorption inhibition may have occurred in roots via the downward transport of Cd. Overall results implied that the predominant portion of foliar applied Cd was retained in leaves, while lesser portions migrated to peduncle or root and affected the absorption/distribution of other metals in wheat plants. These results are important for further discerning the mechanism of wheat grain Cd accumulation, especially when grain is raised in areas where atmospheric deposition of Cd (e.g., near smelting facilities) is an issue from an environmental and human health perspective.

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Authors+Show Affiliations

Liu P
School of the Environment, Henan University of Technology, Zhengzhou, Henan, 450001, China; Henan International Joint Laboratory of Environmental Pollution, Remediation and Grain Quality Security, Zhengzhou, Henan, 450001, China.
Li L
School of the Environment, Henan University of Technology, Zhengzhou, Henan, 450001, China; Henan International Joint Laboratory of Environmental Pollution, Remediation and Grain Quality Security, Zhengzhou, Henan, 450001, China. Electronic address: lilp@haut.edu.cn.
Ippolito JA
Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, 80523-1170, USA; Henan International Joint Laboratory of Environmental Pollution, Remediation and Grain Quality Security, Zhengzhou, Henan, 450001, China.
Xing W
School of the Environment, Henan University of Technology, Zhengzhou, Henan, 450001, China; Henan International Joint Laboratory of Environmental Pollution, Remediation and Grain Quality Security, Zhengzhou, Henan, 450001, China.
Wang Y
School of the Environment, Henan University of Technology, Zhengzhou, Henan, 450001, China; Henan International Joint Laboratory of Environmental Pollution, Remediation and Grain Quality Security, Zhengzhou, Henan, 450001, China.
Wang Y
School of the Environment, Henan University of Technology, Zhengzhou, Henan, 450001, China; Henan International Joint Laboratory of Environmental Pollution, Remediation and Grain Quality Security, Zhengzhou, Henan, 450001, China.
Cheng Y
Jiyuan Ecological and Environmental Monitoring Center of Henan Province, Jiyuan, Henan, 459000, China.
Qiu K
Jiyuan Ecological and Environmental Monitoring Center of Henan Province, Jiyuan, Henan, 459000, China.

MeSH

HumansCadmiumZincTriticumLeadSoil PollutantsMetals, HeavyEdible GrainSoil

Pub Type(s)

Journal Article

Language

eng

PubMed ID

36806811

Citation

Liu, Pengkun, et al. "Heavy Metal Distribution in Wheat Plant Components Following Foliar Cd Application." Chemosphere, vol. 322, 2023, p. 138177.
Liu P, Li L, Ippolito JA, et al. Heavy metal distribution in wheat plant components following foliar Cd application. Chemosphere. 2023;322:138177.
Liu, P., Li, L., Ippolito, J. A., Xing, W., Wang, Y., Wang, Y., Cheng, Y., & Qiu, K. (2023). Heavy metal distribution in wheat plant components following foliar Cd application. Chemosphere, 322, 138177. https://doi.org/10.1016/j.chemosphere.2023.138177
Liu P, et al. Heavy Metal Distribution in Wheat Plant Components Following Foliar Cd Application. Chemosphere. 2023;322:138177. PubMed PMID: 36806811.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Heavy metal distribution in wheat plant components following foliar Cd application. AU - Liu,Pengkun, AU - Li,Liping, AU - Ippolito,James A, AU - Xing,Weiqin, AU - Wang,Yali, AU - Wang,Yale, AU - Cheng,Yongxia, AU - Qiu,Kunyan, Y1 - 2023/02/18/ PY - 2022/10/31/received PY - 2023/1/16/revised PY - 2023/2/16/accepted PY - 2023/2/23/pubmed PY - 2023/3/14/medline PY - 2023/2/22/entrez KW - Cadmium KW - Component KW - Foliar application KW - Peduncle KW - Wheat SP - 138177 EP - 138177 JF - Chemosphere JO - Chemosphere VL - 322 N2 - Atmospheric deposition of Cd, from anthropogenic activities, can be directly deposited onto and absorbed into wheat plants, yet, how foliar absorbed Cd is translocated in wheat plants is not well understood. A pot experiment investigated foliar Cd application on the accumulation and distribution of heavy metals in various wheat parts. Wheat was grown in a Cd/heavy metal contaminated soil, and from grain heading to the filling stage, 0, 10, 20, 30 and 40 mg kg-1 Cd solution was sprayed repeatedly on leaves (grain heads were covered). Foliar Cd application had no effect on grain yield and Cd concentration (3.01-3.51 mg kg-1 for all treatments), while increased flag leaf blade and sheath Cd concentrations by 1.06-2.77 and 0.00-0.66 times, respectively. Cadmium concentration in the center of the peduncle, from the 40 mg kg-1 Cd solution treatment, was 1.41 times that of the control (10.3 vs 7.30 mg kg-1). Foliar Cd application also increased Cd accumulation (concentration × mass) of the flag leaf blade and sheath. Rachis and grain Pb concentrations were reduced, while stem Pb concentration was increased by Cd application. Cadmium application negatively affected whole plant Ni accumulation and concentration of certain wheat parts; Ni absorption inhibition may have occurred in roots via the downward transport of Cd. Overall results implied that the predominant portion of foliar applied Cd was retained in leaves, while lesser portions migrated to peduncle or root and affected the absorption/distribution of other metals in wheat plants. These results are important for further discerning the mechanism of wheat grain Cd accumulation, especially when grain is raised in areas where atmospheric deposition of Cd (e.g., near smelting facilities) is an issue from an environmental and human health perspective. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/36806811/Heavy_metal_distribution_in_wheat_plant_components_following_foliar_Cd_application_ DB - PRIME DP - Unbound Medicine ER -