稀土在植物抗逆中的生理作用  

Physiological Effects of Rare Earth Elements on Stress Resistance in Plant

作　　者：郜红建[1] 常江[1] 张自立[1] 丁士明[1] 魏俊岭[2] 

机构地区：[1]安徽农业大学土化系,安徽合肥230036 [2]淮北市第七中学,安徽淮北235000

出　　处：《中国稀土学报》2003年第5期487-490,共4页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金(29890280)资助项目

摘　　要：论述了近年来关于稀土元素在植物抵抗干旱、高温、低温、盐渍、病虫害、重金属污染等逆境中的作用。稀土元素在植物抗逆中可能的生理作用机制为:稀土离子与细胞膜上的磷脂结合,调节钙代谢,改变细胞膜的通透性和稳定性,提高细胞膜的保护功能;稀土离子能提高植物体内的保护酶活性,减少自由基积累,增强植物的抗逆性。Physiological effects of rare earth elements on resistance to adverse circumstances i.e. arid climate, high temperature, low temperature, salination, plant disease and insect pests, heavy mental pollution and etc. published in recent years were reviewed. The possible mechanism of rare earth elements on resist ance to adverse circumstances is as follows, that rare earths can combine with phosphatide in cell membrane and regulate the metabolism of calcium on the plasma, change the permeability and stability of plasma and increase the protective role of plasma.

关 键 词：农业微生物学 逆境 抗性生理 稀土 

分 类 号：Q948.113[生物学—植物学]