镉对植物生长的影响和植物耐镉机制研究进展  

Effect of Cd on Plant Growth and Its Tolerance Mechanism

作　　者：俞萍[1] 高凡[1] 刘杰[1] 梁琼[1] 韩莹琰[1] 王敬贤[1] 贾月慧[1] 

机构地区：[1]北京农学院植物科学技术学院/农业应用新技术北京市重点实验室,北京102206

出　　处：《中国农学通报》2017年第11期89-95,共7页Chinese Agricultural Science Bulletin

基　　金：北京市教委“生物炭对设施菜地土壤肥力调控机制的研究”(50752309);北京市教委项目:“2016本科生科研训练项目--设施菜地土壤盐分离子组成分析”(PXM2016);北京市农委“菜篮子”新型生产经营主体科技能力提升项目“北京顺义区北务镇仓上村对接项目”(2023217018)

摘　　要：镉污染不仅影响植物的生长发育,而且严重威胁到人类健康,是目前国内外研究的热点问题。笔者就近年来镉对植物的毒害以及植物对镉的耐受机制等相关研究进行了综述。主要包括镉对植物生长和体内代谢的影响,植物对镉的吸收、转运、分布特征以及植物通过吸收转运、区域化作用和螯合作用、体内酶活性和渗透调节物质的变化等方面探讨了植物对镉的耐受机制,并对今后的探索方向提出了一些新思路。Cadmium pollution not only affects plant growth, but also threatens human health, and has been the study hotspot both in domestic and abroad. This paper reviewed the toxicity of Cd on plant and plant tolerance mechanism to Cd, mainly including the effect of Cd on plant growth and metabolism, Cd uptake, transport and distribution characteristics. At the same time, the plant tolerance mechanism to cd was discussed from the aspects of Cd absorption and transport, regionalization effect and sequestration, enzymatic activity in plant and the change of osmotic adjustment substances. Finally, the authors put forward some new ideas for future research.

关 键 词：重金属 镉 吸收 转运 耐受机制 

分 类 号：Q945[生物学—植物学]