Effects of Abscisic Acid and Water Stress on the Senescence of Detached Rice Leaves
Journal
Biologia Plantarum
Journal Volume
42
Journal Issue
2
Pages
313-316
Date Issued
1999-06
Author(s)
J.-N. Lin
J.-W. Wang
C.H. Kao
Abstract
The effects of abscisic acid (ABA) and water stress on senescence and enzyme activities of oxygen scavenging enzymes of detached rice leaves were compared. Exogenously applied ABA exhibited water stress-like effects by promoting senescence, by decreasing the activities of catalase, peroxidase, ascorbate peroxidase and superoxide dismutase. It seems that the effects of water stress on senescence and enzyme activities are possibly mediated through increased content of endogenous ABA.
Subjects
oryza sativa
oxygen scavenging enzymes
Publisher
Institute of Experimental Botany, Academy of Sciences of the Czech Republic
Type
journal article
