小麦不同细胞质雄性不育系花药过氧化物酶活性的研究

小麦不同细胞质雄性不育系花药过氧化物酶活性的研究 STUDY ON THE PEROXIDASE ACTIVITY OF WHEAT ANTHERS OF DIFFERENT CYTOPLASMIC MALE STERILE LINES 袁文静 first-author 徐乃瑜 刘祖华 研究结果表明,小麦细胞质雄性不育系三核期花药的过氧化物酶活性高于相应的保持系,差异的显著程度与不同核质背景有关;不育株酶活性比可育株的显著增高,且出现于败育之后,可能与育性相关。恢复度低的不育系杂种（AF 1 ）,其酶活性与不育系相似,而育性恢复正常的AF 1 ,其酶活性显著下降。不同类型细胞质雄性不育系之间,其过氧化物酶活性变化,反映出异源细胞质效应的存在,只是在不同核背景下,不同发育时期中,这种效应在量上存在着差异。 The results showed that the peroxidase activities of anthers in trinnucle-ate stage of CMS lines were higher than that of maintainers, and the differ-ence in degree of prominence was concerned with the background of differ-ent nucleus and cytoplasm, the peroxidase activities of sterile line was pro-minently higher than fertile plant, it was probably associated with the ferti-lity. The peroxidase activity of sterile line hybrid（AF 1 ）which possessed low degree of restoration was similar to sterile lines, whereas the peroxidase activity of AF 1 whose fertility restored to normal evidently decseased. ★Among the different types of CMS lines, the variation of peroxidase ac-tivities reflects the existence of the effects ofallocytoplasm, merely under the background of different nucleus, and in the different development stage, this effect exists difference in quantity. 过氧化物酶 酶活性 花药 小麦 细胞质雄性不育 国家自物科学基金 1988-03-01 2021-04-01 3