水土保持学报2013，Vol.27Issue(3)：204-208,5.
渗透胁迫下Ca2+/CaM信使系统对小麦幼苗生理特性的调控效应
Regulation Effect of Calcium/Calmodulin on Physiological Traits in Wheat Seedling Under Osmotic Stress
摘要
Abstract
In order to investigate regulation effect of calcium/calmodulin on physiological traits in wheat seedling under osmotic stress,the experiment was carried out in laboratory to study the effects of calcium channel blockers VP and calmodulin antagonists CPZ on relative water content,malondialdehyde content (MDA),superoxide anion free radical content (O2·-),hydrogen peroxide content (H2O2),soluble sugar content,soluble protein content,proline content,glutathione content (GSH) and activities of superoxide dismutase(SOD),catalase(CAT) and peroxidase(POD) in wheat seedling under PEG stress.The results showed that VP and CPZ treatments were increased the MDA,O2·-and H2O2 contents,decreased the relative water content,soluble sugar content,proline content,soluble protein content and glutathione content(GSH) and decreased the activities of SOD,CAT and POD in wheat seedling.At the same time,the injury to seedlings was more serious under compound treatment of VP and CPZ.These results indicated that calcium/calmodulin messenger system might regulate the drought resistance of wheat seedlings by affecting the content of osmotic adjustment and antioxidant substance,the activity of some antioxidant enzymes and cell membrane permeability.关键词
小麦幼苗/渗透胁迫/Ca2+/CaM信使系统/生理特性Key words
wheat seedling/ osmotic stress/ calcium/calmodulin messenger system/ physiological traits分类
农业科技引用本文复制引用
王贺正,梁力平,吴金芝,张均,陈明灿,付国占,李友军..渗透胁迫下Ca2+/CaM信使系统对小麦幼苗生理特性的调控效应[J].水土保持学报,2013,27(3):204-208,5.基金项目
河南省重点科技攻关项目(102102110030) （102102110030）
河南省教育厅科技攻关项目(12B210002) （12B210002）
