【摘要】 通过甘薯花蕾切片细胞学观察和凝胶电泳过氧化物酶酶谱扫描分析结果表明: 1.小孢子囊的发育及小孢子发生,是按一定程序进行的。孢原细胞→壁细胞→花药内壁、中间层和绒毡层,孢原细胞十造孢细胞→小孢子母细胞十小孢子。 2.在同功酶扫描图谱上,花药的过氧化物酶同工酶的主要酶带分别出现在F区第1~2条和H区第19条。 3.过氧化物酶同工酶活性的变化与小孢子囊的发育及小孢子的发生过程有关。更多还原

【Abstract】 In this experiment, the main results are summarized as follows:1. The microsporangium development and the microsporogenesis in sweet potato (Ipomoea trifida) proceed via an ordinal sequence as follows: Archesporial cell→Primary parietal cell→Endothecium, Middle layer and Tapetum; Archesporial cell→Primary sporogenous cell→Microspore mother cell→Microspore.2. In the scanned zymograms of peroxidase isozymes the main bands of anothers appeared on the twelfth of F zone and the nineteenth of H zone.3. The changes of activity of peroxidase isozymes depend on the different stages of the microsporogcnesis.更多还原