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(Oryzasativa)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。
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.
作者
王璐瑶
陈謇
赵守清
闫慧莉
许文秀
刘若溪
麻密
虞轶俊
何振艳
Luyao Wang;Jian Chen;Shouqing Zhao;Huili Yan;Wenxiu Xu;Ruoxi Liu;Mi Ma;Yijun Yu;Zhenyan He(Key Laboratory of Plant Resources,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China;University of Chinese Academy of Sciences,Beijing 100049,China;Wen ling Crop Protection and Tillage Fertilizer and Energy Sources Station,Wenling 317500,China;Zhejiang Station for Management of Arable Land Quality and Fertilizer,Hangzhou 310000,China)
出处
《植物学报》
CAS
CSCD
北大核心
2022年第2期236-249,共14页
Chinese Bulletin of Botany
基金
中国科学院任务/战略性先导科技专项(A类)(No.XDA24010404)
地方横向项目(No.2021C040)
国家自然科学基金(No.32000196)
国家重点研发计划(No.2017YFD0800900)。
关键词
水稻
镉
积累
生理机制
分子机制
rice
cadmium
accumulation
physiological mechanisms
molecular mechanisms
