2002•Zhongguo shengtai nongye xuebaoRequires access
Effects of water stress on AsA-GSH cycle and H2O2 content in maize root.
Li De
Open publisher page 8 citations
Abstract
H2 O2 content and the change of main antioxidants in AsA-GSH cycle in two maize species with different resistances to drought were studied under water stress. The results showed that the activities of GR,APX and the content of GSH were obviously increased when the PEG concentration was lower than 100g/kg while they decreased when the PEG concentration was higher than 150g/kg. The content of AsA declined under different degrees of water stress. H2O2 content was increased under water stress conditions. The increase of H2O2 content is obviously positive correlation with the decrease of activity (content) of the antioxidants under severe water stress. The variety with stronger resistance to drought had higher activity of antioxidation.