Ca^(2+)提高白花苜蓿抗冷性的研究  

Study on enhancement of cold resistance of Trifolium by Ca^(2+)

作　　者：刘美艳[1] 张健[1] 张伟 

机构地区：[1]徐州师范大学生物系,江苏徐州221116 [2]贵阳市苗圃所,贵州贵阳550003

出　　处：《广西植物》2004年第2期174-177,共4页Guihaia

基　　金：徐州师范大学科研基金资助项目 ( 0 1BXL0 10 )

摘　　要：Ca2 + 处理能缓解冷胁迫时白花苜蓿叶片叶绿素的降解速度 ,提高叶片中可溶性糖、脯氨酸和Vc的含量 ;还能保持冷胁迫时细胞膜透性的稳定 ,减少O 2 和MDA的积累 ;维持较高的SOD和POD的活性。The effect of Ca^(2+) on cold resistance of Trifolium was studied. The results showed that Ca^(2+) could retard the degradation of chlorophyll in Trifolium leaves under cold stress and increase the contents of soluble sugar, proline and vitamin C; Ca^(2+) could also maintain the stability of plasmalemma and decrease the accumulation of O~~ 2 and MDA; keep high activity of SOD and POD.

关 键 词：CA^2+ 白花苜蓿 抗冷性 冷胁迫 细胞膜透性 

分 类 号：Q945.78[生物学—植物学] S542[农业科学—作物学]