• 陆地棉小孢子发生过程中,相邻减数分裂细胞壁中的细胞质通道一个明显特征

    The cytoplasmic channel in the wall of adjacent meiocytes was an obvious feature during microsporogenesis in Gossypium hirsutum.

    youdao

  • 减数分裂孢子开始退化,首先是小孢子开始变形,随后原生质浓缩,形成干秕皱缩孢子

    After the meiosis, however, the microspores began to degenerate to become blighted and wrinkled ones, starting from the deforming of their walls and concentration of their protoplasm.

    youdao

  • 同一花药不同花粉相同一药,花粉细胞减数分裂孢子发育,并不是高度同步

    It is not synchronous highly that the meiosis of pollen mother cells and the development of microspore in the same anther but different pollen sac and in the same anther chamber.

    youdao

  • 单瓣紫花木槿孢子母细胞经过减数分裂形成四面体状分体成熟花粉二细胞花粉,圆球型,表面刺毛。

    The results showed that the type of microsporic tetrads of the simple flower is belong to tetrahedral type and the mature pollen is two-celled with bristles on the surface.

    youdao

  • 单瓣紫花木槿孢子母细胞经过减数分裂形成四面体状分体成熟花粉二细胞花粉,圆球型,表面刺毛。

    The results showed that the type of microsporic tetrads of the simple flower is belong to tetrahedral type and the mature pollen is two-celled with bristles on the surface.

    youdao

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