【摘要】 以郑州9023为供试材料,采用水培方法,研究了不同浓度Cd2+胁迫对小麦幼苗生理活性的影响。结果表明,随着Cd2+胁迫浓度的升高,小麦幼苗叶片ASA含量、可溶性蛋白含量、Chla、Chlb、总Chl含量呈下降趋势,而O2-含量、MDA含量、PPO活性、POD活性、还原糖及可溶性总糖含量均随处理浓度的升高而增加;对POD同工酶的聚丙烯酰胺凝胶电泳结果分析表明,Cd2+诱导小麦幼苗中POD同工酶的表达。更多还原

【Abstract】 The wheat is the second crop next to rice in our country.Effects of the different concentration of Cd²⁺ on physiological activity of wheat seedling of Zhengzhou 9023 were studied.The results showed that with the increase of the concentration of Cd²⁺,the content of ASA,soluble protein,chlorophyll a, chlorophyll b and total chlorophyll decreased,but the content of O₂^-,MDA, soluble sugar and the active of PPO,POD increased.Cd²⁺ induced the expression of POD isoenzymes of wheat seedling by polyacrylamide gel electrophoresis（PAGE）.更多还原