同核异质水稻雄性不育系花粉发育过程中生化特征的初步研究

同核异质水稻雄性不育系花粉发育过程中生化特征的初步研究 A PRELIMINARY STUDY ON BIOCHEMICAL CHARACTER DURING POLLEN DEVELOPMENT OF MALE-STERILE RICE LINES WITH VARIOUS CYTOPLASMS 王延枝 1 first-author 何其敏 1 朱英国 1 胡跃军 1 湖南林科所 湖南林科所 以同核异质水稻雄性不育系为材料,对花粉发育过程中过氧化物酶同工酶、游离氨基酸和游离组蛋白进行研究,不育系与保持系过氧化物酶同工酶比较,在四分体和单核边位期,不育系比保持系同工酶谱带多,三核期比保持系少;四个同核异质不育系比较,败南11A是一种类型,红莲、滇一型、包台型南粳11A是另一种类型。三核期游离氨基酸分析,不育系脯氨酸比保持系低,天门冬酰胺比保持系高;四个同核异质不育系比较,败南11A为一类,红莲、滇一型、包台型为另一类。游离组蛋白的研究表明,不育系在花粉发育的各个时期游离组蛋白相对百分含量均低于保持系,细胞质之间无明显差异。 The present paper studied the changing pattern of peroxidaseisozyme, free amino acids and free histones during the pollen development in male-sterile rice lines with various cytoplasms. The results showed that there were apparent differences betweenthe male-sterile lines with their correspondent maintainers. Differences were also found between two types o male-sterile lines with various cytoplasms. It provides a theoretical dasis for the breeding of male-sterile lines and its maintainers in rice. 1985-02-01 2021-04-01 2