淹水胁迫对开花期小麦生理生化特征的影响  

Effects of waterlogging stress on physiological and biochemical characteristics of wheat at flowering stage

作　　者：申长卫 吴婷婷 陈新茹 宋艳艳 周值乐 欧行奇[2] SHEN Changwei;WU Tingting;CHEN Xinru;SONG Yanyan;ZHOU Zhile;OU Xingqi(School of Resources and Environmental Sciences,Henan Institute of Science and Technology,Xinxiang 453003,China;School of Life Science and Technology,Henan Institute of Science and Technology,Xinxiang 453003,China)

机构地区：[1]河南科技学院资源与环境学院,河南新乡453003 [2]河南科技学院生命科技学院,河南新乡453003

出　　处：《河南科技学院学报（自然科学版）》2023年第1期1-9,共9页Journal of Henan Institute of Science and Technology(Natural Science Edition)

基　　金：河南省青年科学基金项目(222300420160);河南科技学院大学生创新创业训练计划(2022CX061);河南科技学院高层次人才引进动项目(208010617008)。

摘　　要：以耐淹性不同的周麦22(ZM22,不耐淹品种)和百农607(BN607,耐淹品种)为试材,采用盆栽方式,研究淹水处理对两种小麦叶片叶绿素含量、各部位(小麦根系、老叶、旗叶、籽粒)糖分含量和乙醇脱氢酶活性的影响.结果表明:开花期淹水处理后,ZM22老叶中叶绿素a、叶绿素b和叶绿素总含量都显著下降,而BN607相应各指标的叶绿素含量都上升.淹水处理后BN607根系蔗糖含量上升的幅度远高于ZM22,而ZM22根系中总糖含量显著降低.与对照相比,淹水处理后BN607旗叶中总糖含量显著增加,而老叶中总糖含量显著降低;淹水处理后7 d ZM22旗叶中总糖含量显著降低,而老叶总糖含量与对照差异不显著.在老叶和旗叶中,淹水处理3 d和7 d后造成ZM22的ADH酶活性显著降低,而BN607的ADH酶活性显著上升.整体来看,BN607对淹水的适应能力要强于ZM22.In this study,Zhoumai 22(ZM22,non-waterlogging-tolerant variety) and Bainong 607(BN607,waterlogging-tolerant variety) with different submergence tolerance were used as plant materials by pot planting method to test the effects of submergence treatment on chlorophyll content,sugar content and alcohol dehydrogenase activity in different parts(root,old leaf,flag leaf and grain) of two wheat varieties,respectively.The results showed that the contents of chlorophyll a,chlorophyll b and chlorophyll a +b in the old leaves of ZM22 decreased significantly after waterlogging treatment at the flowering stage,while the chlorophyll contents of the corresponding indexes of BN607 all increased.After waterlogging,the sucrose content in the roots of BN607 increased much more than that of ZM22,while the total sugar content in the roots of ZM22 decreased significantly.Compared with the control treatment,the total sugar content in flag leaves of BN607 increased significantly after waterlogging treatment,while the total sugar content in old leaves decreased significantly.The total sugar content of ZM22 flag leaves decreased significantly at 7 days after waterlogging treatment,while the total sugar content of old leaves was not significantly different from the control treatment.In old leaves and flag leaves,the ADH enzyme activity of ZM22 was significantly decreased after3 and 7 days of waterlogging treatment,while the ADH enzyme activity of BN607 was significantly increased.Overall,the adaptability of BN607 to waterlogging was stronger than that of ZM22.

关 键 词：小麦 淹水胁迫 叶绿素 糖分 乙醇脱氢酶 

分 类 号：S512.1[农业科学—作物学]