Mechanisms of cadmium phytoremediation and detoxification in plants
Mechanisms of cadmium phytoremediation and detoxification in plants
复制标题
植物修复镉和解毒的机制
DOI：
10.1016/j.cj.2021.02.001
复制
发表时间：
2021-06-01
期刊：
影响因子：
6.6
通讯作者：
Zhang, Zhenhua
中科院分区：
文献类型：
--
作者：
Luo, Jin-Song;Zhang, Zhenhua
随着工业的发展，土壤镉污染导致农作物镉污染，对食品安全和人类健康构成威胁。镉在植物体内的过量积累也会通过氧化胁迫损害其光合系统而抑制其生长。通过进化选择，植物已经发展出一套有效的策略来应对环境中的镉。这些包括重金属的积累和解毒。植物根系通过质外体和共质体途径吸收镉，然后通过木质部装载、长距离运输和韧皮部再分配转移到地上部。同时，植物启动了一系列机制来减轻镉的毒性，包括细胞壁吸附，细胞质螯合和液泡隔离。本文综述了镉在植物体内的积累和解毒的研究进展。(C)2021中国农业科学院作物科学研究所中国作物学会Elsevier B.V.代表KeAi Communications Co.制作和主持，公司
As a consequence of industrial development, soil Cd pollution leads to crop contamination by Cd, posing a threat to food safety and human health. Excessive accumulation of Cd in plants also inhibits their growth via oxidative stress damage to their photosynthetic systems. Through evolutionary selection, plants have developed a set of efficient strategies to respond to Cd in their environments. These include the accumulation and detoxification of heavy metals. Cd is absorbed by plant roots through the apoplastic and symplastic pathways and then translocated to plant shoots via xylem loading, long-distance transport, and phloem redistribution. Simultaneously, plants initiate a series of mechanisms to reduce Cd toxicity, including cell wall adsorption, cytoplasmic chelation, and vacuolar sequestration. This review summarizes current knowledge of Cd accumulation and detoxification in plants. (C) 2021 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.