Senescence of rice leaves part 47 - Involvement of lipid peroxidation in water stress-promoted senescence of detached rice leaves

Authors
Citation
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
Citations number
16
Categorie Soggetti
Plant Sciences
Journal title
BIOLOGIA PLANTARUM
ISSN journal
00063134 → ACNP
Volume
43
Issue
1
Year of publication
2000
Pages
141 - 144
Database
ISI
SICI code
0006-3134(2000)43:1<141:SORLP4>2.0.ZU;2-O
Abstract
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.