Effects of Exogenous CaCl2 on Membrane Lipid Peroxidation and Photo -synthetic Characteristics of Cucumber Seedling Leaves under Drought Stress
Chen Lulu
Wang Xiufeng
Liu Mei
Yang Fengjuan
Shi Qinghua
Wei Min
Li Qingming
Abstract：In order to approach the related mechanisms of exogenous CaCl2 in improving plant drought resistance,the simulated drought stress with PEG was used to study the variation of seedling growth,chloro-phyll content,membrane lipid peroxidation,proline and protein accumulation and photosynthetic gas exchange parameters after foliar spraying of CaCl2 .The results showed that foliar spraying of CaCl2 could promote the cucumber seedling growth,increase the leaf chlorophyll content,photosynthetic rate,transpiration rate and water use efficiency,and decreased the membrane lipid peroxidation and the accumulation of proline and solu-ble protein.So the impact of drought stress on cucumber seedlings was alleviated,and thereby the plant drought resistance was increased.
Keywords：Cucumber seedlingDrought stressCaCl2Membrane lipid peoxidationPhotosynthetic characteristics
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 28-33 )