细胞分裂素对冷害水稻幼苗膜保护酶热稳定蛋白和能量代谢的影响研究  

INFLUENCE OF 6-BA ON MEMBRANE PROTECTIVE ENZYMES HEAT STABLE PROTEINS AND ENERGY METABOLISM IN RICE SEEDLINGS UNDER CHILLING STRESS

作　　者：宗学凤[1] 刘大军[1] 王三根[1] 吴文斌 胡雪琴[1] 

机构地区：[1]西南农业大学农学系

出　　处：《西南农业大学学报（自然科学版）》1998年第6期573-577,共5页Journal of Southwest Agricultural University

基　　金：国家自然科学基金;农业部"九五"重点项目;重庆市应用基础研究项目

摘　　要：低浓度６－苄基腺嘌呤（６－ＢＡ）处理水稻种子，能维持冷害水稻苗叶绿体较高的能量水平，利于稻苗的各种生理生化反应；可提高冷害水稻幼苗膜保护酶ＳＯＤ，ＰＯＤ，ＣＡＴ的活性，降低膜脂过氧化产物ＭＤＡ的含量，还能提高热稳定蛋白和ＡＴＰ的含量。亚细胞组分测定表明，ＡＴＰ主要存在于叶绿体和线粒体中，细胞溶质中的含量很少。Under low temperature conditions, treatment of rice (Ⅱ You 6078) seeds with 6-BA at low concentrations enhanced SOD, CAT and POD activity, raised heat stable protein content and decreased MDA content in the seedlings suffering from cold injury. ATP was mainly located in chloroplasts and mitochondria and very little was found in the cytosol. 6-BA increased ATP in the chloroplasts.

关 键 词：6-BA 水稻 幼苗 冷害 

分 类 号：S511.043[农业科学—作物学]