Cd胁迫对绿豆幼苗生长、光合作用及微量元素代谢的影响  

Effect of Cd on the Development, Photosynthesis and Micronutrients Allocation in Mung Beans Seedlings

作　　者：张媛华[1] 

机构地区：[1]陕西省河流湿地生态与环境重点实验室/渭南师范学院化学与生命科学学院,陕西渭南714099

出　　处：《东北农业科学》2016年第1期35-37,共3页Journal of Northeast Agricultural Sciences

基　　金：陕西省自然科学基础研究计划项目(2011JQ4014);陕西省教育厅专项科研计划项目(2013JK0717);渭南师范学院科研资助项目(11YKZ005);渭南师范学院特色学科建设项目(14TSXK05)

摘　　要：本文测定了1μmol/L Cd胁迫下绿豆幼苗生长初期的发育指标、光合速率的时间变化以及微量元素Zn、Mn、Fe和Cu的积累情况。结果表明:Cd显著降低了绿豆幼苗的株高、根长、根数及生物量,降低植物的光合速率(Pn),降低幼苗茎叶中微量矿质元素Zn、Mn、Fe和Cu的含量,促进根中Zn、Fe、Cu含量的积累,说明Cd通过改变植物对微量元素的积累进而影响植物的生长发育和光合作用。The changes of development and photosynthetic rate of mung beans seedling under 1 μmol/L Cd stress and accumulation of Zn, Fe, Mn, Cu were determined in the test. Results showed that under Cd stress, the plant height, root length, root numbers and biomass decreased, leaf photosynthetic rate and the accumulation of Zn, Fe, Mn, Cu in stem and leaves were also decreased, while Zn, Fe and Cu concentration in roots increased. This indicated that Cd stress influenced plant development and photosynthesis through the changes of accumulation of micronutrient in plant.

关 键 词：CD胁迫 生长发育 光合作用 微量元素 绿豆幼苗 

分 类 号：S522[农业科学—作物学]