栽培大豆(Glycine max)与野生大豆(G.soja)解剖学的比较研究——Ⅰ.雄配子体的发育

本文对栽培大豆(Glycine max)和野生大豆(G.soja)雄配子体的发育和同步性及精子发生进行了比较研究。大豆和野生大豆花粉母细胞的减数分裂是属于同时型的,小孢子的发育过程基本相同。花粉粒的发育在同一花药中基本上是同步的,在同花中九个连体花药的花粉粒的发育也基本上是同步的,而单个花药中花药粉粒的发育要稍落后于九个连体花药中的花粉粒。大豆的两个精子是在花粉管和花粉粒中形成的,即二、三细胞型;野生大豆的两个精子是在花粉管中形成的即二细胞型。本文讨论了这两种植物精子发生途径的类型及分类学上的意义。

COMPARATIVE-STUDY ON MALE GAMETOPHYTE DEVELOPMENT BETWEEN GLYCINE MAX AND GLYCINE SOJA

The process and synchronion of male gametophyte development and speratogenesis were studied comparatively between Glycine max and G. soja . Meiosis of mother cells in G. max and G. soja is of the simultaneous type. The morphological process of microsporogenesis in G. max and G. soja was the same. In most cases development of pollen grains within an anther in the same flower was highly sychronous. Dvevelopment of the pollen grains in the nine diadphous anthers was usually highly synchronous, whereas the development of pollen grains in the tenth anther was slower than that of the other nine, in both G. max and G. soja. Two sperm nuclei of G. max formed in a single pollen tube or pollen grains, belong by to two- and three-celled pollen grain type. Two sperm cells of G. soja were formed in a single pollen tube, belonging to two-celled pollen grain type.