首页|期刊导航|中国农业科学（英文版）|Effects of Water Stress on the Protective Enzyme Activities and Lipid Peroxidation in Roots and Leaves of Summer Maize
中国农业科学（英文版）2006，Vol.5Issue(4)：291-298,8.
Effects of Water Stress on the Protective Enzyme Activities and Lipid Peroxidation in Roots and Leaves of Summer Maize
Effects of Water Stress on the Protective Enzyme Activities and Lipid Peroxidation in Roots and Leaves of Summer Maize
摘要
Abstract
A systematic study was conducted to determine the effects of water stress on the activities of protective enzymes and lipid peroxidation in maize. The results showed that, under water stress, the activities of superoxide dismutase (SOD),catalase (CAT), and peroxidase (POD) in leaves and roots increased sharply at prophase and metaphase growth stages,such as, male tetrad stage, but then declined towards the physiological maturity. The protective enzyme activities in roots were lower than those in leaves. The content of malondialdehyde (MDA) increased according to the severity of water stress. The content of MDA in roots was lower than that in leaves. The activities of protective enzymes and lipid peroxidation in roots were positively related to that in leaves with most of the correlation coefficients being significant.The content of soluble proteins in roots and leaves decreased with increasing drought stress. The ear characteristics deteriorated and the economic yields of maize decreased significantly under water stress. The main factors that caused reduction of yields were the decrease in the number of ear kernels and 100-kernel weight.关键词
maize/water stress/protective enzyme activities/lipid peroxidationKey words
maize/water stress/protective enzyme activities/lipid peroxidation分类
农业科技引用本文复制引用
GE Ti-da,SUI Fang-gong,BAI Li-ping,LU Yin-yan ,ZHOU Guang-sheng..Effects of Water Stress on the Protective Enzyme Activities and Lipid Peroxidation in Roots and Leaves of Summer Maize[J].中国农业科学（英文版）,2006,5(4):291-298,8.基金项目
This work was supported by the State Key Basic Research and Development Plan of China (G1999043407).We greatly acknowledge the help in modifying this paper, from Prof. Huang Danfeng, Dr Philipp Lehne,Dr. Li Huanzhi, and Master Xia Hanyan who come from the School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China. （G1999043407）
