“BAU—2”诱导普通小麦雄性不育的研究 Ⅲ.化学杀雄机制  

Studies on BAU—2 Induced Male Sterility in Winter Wheat(T.aestivum L.)

作　　者：徐如强[1] 黄铁城[1] 张爱民[1] 

机构地区：[1]北京农业大学农学系,北京100094

出　　处：《中国农业大学学报》1993年第S2期19-24,共6页Journal of China Agricultural University

摘　　要：本文通过研究 BAU-2诱导的雄性不育小麦花粉发育过程中的显微、亚显微结构变化,探讨了 BAU-2诱导小麦雄性不育的细胞学作用机制。观察结果表明:(1)单核小孢子发育至大液泡时期(单核小孢子中晚期)败育而形成败育花粉,是 BAU-2诱导雄性不育的原因。(2)单核小孢子败育与花药绒毡层的功能异常密切相关。(3)与小麦 T 型雄性不育系相比,BAU-2诱导产生的雄性不育小麦花粉败育程度更彻底。Studies on the cytological mechanism of BAU-2 inducing male sterility have been done in this work.The results indicated:(1)The abortion of one nucleus microspore in the vacuole stage,which can develope abortive pollen,was responsible for the BAU-2 induced male sterility.(2)The abortion of one nucleus microspore was related closely with the functional abnormality of tapetum in anther.(3)The abortive degree of the pollen from BAU-2 induced male sterile plants was more critical than that from T -Cytoplasmic male sterile wheat.

关 键 词：化学杂交剂 小孢子 机制 

分 类 号：S[农业科学]