稀土元素对植物矿质代谢的影响与机理  

Effects of Rare Earth Elements on Mineral Metabolism in Plant

作　　者：任晓晓[1] 周青[2,1] 

机构地区：[1]江南大学环境与土木工程学院,江苏无锡214122 [2]江南大学工业生物技术教育部重点实验室,江苏无锡214122

出　　处：《土壤通报》2009年第2期451-455,共5页Chinese Journal of Soil Science

基　　金：国家发改委稀土专项基金(IFZ20051210)项目资助

摘　　要：综述了稀土元素(Rare earth elements,REEs)对植物矿质代谢的影响。适当浓度REEs能提高植物根系活力,促进根系对养分的吸收,REEs作用于植物体有特殊的"低促高抑"效应。讨论了REEs对植物吸收营养元素的直接、间接影响和相关REEs作用的生理生态学机制,包括REEs对植物钙生理功能的影响,REEs类似于生物活性金属调节剂和REEs类似植物激素等内容。The effect of rare earth elements on mineral metabolism in plant was reviewed. Suitable concentration of rare earth elements could improve activity of plant root system and promote nutrient uptake by plant roots. It was found that effect of rare earth elements on plant ＂low concentration promotion, high-concentration inhibition＂. The effects of rare earth elements on absorption of nourishment, physiological mechanism, calcium physiological and biochemical processes of plants were discussed. The rare earth elements were similar to biological metal regulator and plant phytohormone.

关 键 词：稀土元素(REEs) 矿质代谢 机制 

分 类 号：S154.4[农业科学—土壤学] TQ133.3[农业科学—农业基础科学]