Jn. Lin et Ch. Kao, Senescence of rice leaves part 47 - Involvement of lipid peroxidation in water stress-promoted senescence of detached rice leaves, BIOL PLANT, 43(1), 2000, pp. 141-144
Role of lipid peroxidation and antioxidative enzymes (catalase, peroxidase,
superoxide dismutase, ascorbate peroxidase and glutathione reductase) in w
ater stress-promoted senescence of detached rice leaves was investigated. T
he senescence was followed by measuring the decrease in protein content. In
creased lipid peroxidation was closely correlated with senescence in water
stressed leaves. Decrease in superoxide dismutase activity was evident 8 h
after beginning of water stress. However, decreased catalase, peroxidase, a
nd ascorbate peroxidase activity was observed only when senescence was obse
rverd. Glutathione reductase was not affected by water stress. Free radical
scavengers retarded water stress-enhanced senescence.