植物学报 ›› 2022, Vol. 57 ›› Issue (2): 236-249.DOI: 10.11983/CBB21222

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水稻镉积累特性的生理和分子机制研究概述

王璐瑶1,2, 陈謇3, 赵守清3, 闫慧莉1, 许文秀1, 刘若溪1,2, 麻密1, 虞轶俊4,*(), 何振艳1,*()   

  1. 1中国科学院植物研究所北方资源植物重点实验室, 北京 100093
    2中国科学院大学, 北京 100049
    3温岭市植保耕肥能源总站, 温岭 317500
    4浙江省耕地质量与肥料管理总站, 杭州 310000
  • 收稿日期:2021-12-20 接受日期:2022-01-20 出版日期:2022-03-01 发布日期:2022-03-24
  • 通讯作者: 虞轶俊,何振艳
  • 作者简介:hezhenyan@ibcas.ac.cn
    *E-mail: yuyijun0806@163.com;
  • 基金资助:
    中国科学院任务/战略性先导科技专项(A类)(XDA24010404);地方横向项目(2021C040);国家自然科学基金(32000196);国家重点研发计划(2017YFD0800900)

Research Progress of the Physiological and Molecular Mechanisms of Cadmium Accumulation in Rice

Luyao Wang1,2, Jian Chen3, Shouqing Zhao3, Huili Yan1, Wenxiu Xu1, Ruoxi Liu1,2, Mi Ma1, Yijun Yu4,*(), Zhenyan He1,*()   

  1. 1Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
    2University of Chinese Academy of Sciences, Beijing 100049, China
    3Wenling Crop Protection and Tillage Fertilizer and Energy Sources Station, Wenling 317500, China
    4Zhejiang Station for Management of Arable Land Quality and Fertilizer, Hangzhou 310000, China
  • Received:2021-12-20 Accepted:2022-01-20 Online:2022-03-01 Published:2022-03-24
  • Contact: Yijun Yu,Zhenyan He

摘要: 我国的稻米镉超标对国民身体健康造成严重威胁, 而选育低镉积累的水稻(Oryza sativa)品种是降低稻米镉含量行之有效的策略, 因此有必要了解水稻对镉的积累特性及其生理过程和相关功能基因。该文概述了镉在水稻根部的吸收、木质部中的装载与运输、茎节中的分配、叶片中再分配以及籽粒镉积累等过程的生理和分子机制研究进展, 以期为低镉水稻的选育和安全生产提供理论参考。

关键词: 水稻, 镉, 积累, 生理机制, 分子机制

Abstract: The wide occurrence of Cadmium (Cd)-contaminated rice in China poses significant public health risk. Breeding rice varieties with low-Cd accumulation is an effective strategy to reduce Cd accumulation in rice grain. It is necessary to understand the characteristics of Cd accumulation in rice, its physiological process and related functional genes. Here, we review the advances in physiological and molecular mechanisms of Cd uptake in roots, loading and translocation in xylem, distribution in nodes, redistribution in leaves, and accumulation in grains, which will provide theoretical reference for breeding and safe production of low-Cd rice.

Key words: rice, cadmium, accumulation, physiological mechanisms, molecular mechanisms