Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Anhui Agricultural Sciences》 2008-23
Add to Favorite Get Latest Update

Effects of Drought Stress on the Antioxidant Enzyme Activity of Wheat Varieties with Different Senescence Types

LIU Ming-xue et al(College of Life Science and Engineering,Southwest University of Science and Technology,Mianyang,Sichuan 621010)  
[Objective] The aim of this paper was to discuss the effects of drought stress on antioxidant enzyme activity of wheat varieties with different senescence types in field.[Method] Six wheat varieties of two senescence types under nature field drought stress were used to study the change tendency of three antioxidant enzymes activities and the MDA contents at four stages during grain filling period.[Results] During the field drought stress,the activities of SOD increased continuously and decreased at stage 3 or stage 4;the CAT activities raised fastest,then decreased;POD activities first dropped with the induction of drought stress,then enhanced at stage 3,and dropped to initial level at the end.The change tendency of MDA contents were contrary to the change of the antioxidant enzymes.The enzymes activities of anti-senescence wheat No.2,No.4 and its sister line wheat No.3 were higher than those of normal types,while the MDA contents were lower.[Conclusion] The three antioxidant enzymes activities and the MDA contents changed as S type curves under filed drought stress,which was different with the results from other simulated drought stress experiments.
【Fund】: 四川省教育厅育种专项项目(2006LD012);; 四川省农作物育种攻关项目(SC-YZGG.15);; 西南科技大学农科发展基金
【CateGory Index】: S512.1
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved