几种环境胁迫对小麦生理生化特性的影响  

Effects of Several Stresses on Physiological and Biochemical Characteristics of Wheats

作　　者：王自霞[1] 周小梅[1] 范玲娟[1] 

机构地区：[1]山西大学生命科学与技术学院,山西太原030006

出　　处：《山西大学学报（自然科学版）》2008年第1期128-132,共5页Journal of Shanxi University(Natural Science Edition)

摘　　要：研究了低温(4℃,3 d),干旱(0.4 mol.L-1甘露醇和20%PEG-6000,3 d)和盐(0.2mol.L-1NaCl,3 d)胁迫对春性、半冬性和冬性小麦生理生化指标可溶性糖(WSS)、丙二醛(MDA)、脯氨酸(Pro)含量的影响,结果表明:各种小麦的WSS、Pro含量受低温、干旱和盐胁迫的影响都很大,表现为极显著或显著升高,且半冬性小麦WSS、Pro含量增高的幅度高于春性小麦和冬性小麦.各种小麦的丙二醛含量在各种胁迫下的增高幅度都比较小,且半冬性小麦的增高幅度低于春性和冬性小麦.总体来看,半冬性小麦的抗逆性强于春性小麦和冬性小麦.How the contents of water soluble sugar （WSS）,malondialdehyde （MDA） and proline （Pro） of spring,semi-winter and winter wheat changed under low-temperature（4 ℃, 3 d）,drought （0. 4 mol · L^-1 mannitol and 20%PEG-6000,3 d） and salt （0. 2 mol · L^-1 NaCI,3 d） stress was studied. The results were as follows： The contents of WSS and Pro of all 3 kinds of wheat changed very much under lowtemperature,drought and salt stress ,and was changed higher significantly or significantly. The contents of WSS and Pro of semi-winter wheat increased higher than spring and winter wheat. However,the content of MDAof the three wheats under all stresses increased lower and the content of semi-winter increasesd lower than the two wheaters. In one word,stress resistance of semi-winter wheat was stronger than the two wheat

关 键 词：小麦 低温 干旱 盐 WSS MDA PRO 

分 类 号：S512.1[农业科学—作物学] S129