辣椒黄绿苗胞质雄性不育系生化特性研究

研究了辣椒黄绿苗胞质雄性不育系YBM-A6、保持系YBM-B6及96-140绿苗的花蕾和叶片可溶性糖、可溶性蛋白质含量以及SOD、POD、CAT活性变化。结果表明:YBM-A6花蕾中可溶性糖、可溶性蛋白、脯氨酸含量明显少于保持系,且呈减少趋势,而不育系YBM-A6叶片中可溶性糖、可溶性蛋白、脯氨酸变化趋势与保持系YBM-B6及96-140变化趋势相同;YBM-A6花蕾及叶片CAT活性均低于其保持系;SOD和POD活性则高于其保持系。说明上述物质含量和酶活性变化可能与黄绿苗胞质雄性不育系YBM-A6的不育有关。

Study on Biochemical Characteristics of Hot Pepper ( Capsicum annuum) Cytoplasmic Male Sterile Line with Yellow-green Seedling Marker

The author studied the soluble sugar content,soluble protein content and SOD,POD and CAT activities in buds and leaves of hot pepper(Capsicum annuum L.) cytoplasmic male sterile line YBM-A6,maintainer line YBM-B6,and 96-140 green seedlings.The results showed that the contents of soluble sugar,soluble protein and proline in the buds of YBM-A6 were significantly less than those of its maintainer line YBM-B6,and showed a decreasing trend.While the contents of soluble sugar,soluble protein and proline in the leaves of YBM-A6 showed the same trend as those of YBM-B6 and 96-140.The activity of CAT in both buds and leaves of YBM-A6 was lower than that of YBM-B6,while the activities of SOD and POD in YBM-A6 were higher than those in YBM-B6.In conclusion,the changes in above substance content and enzymatic activity were possibly related to the sterility of cytoplasmic male sterile line YBM-A6 with yellow-green seedling marker.