小孢子

The big,empty and abortive pollen grains are abserred at the stage of uninuclear microspore.

单核期小出现壁发育不良和巨大及空花粉现象。

Pollen mother cells undergo meioses through simultaneous cytokinesis and give rise to tetrads of microspores, which are tetrahedrally arranged.

花粉母细胞行减数，细胞属同时型，产生小四体，为四面体。

These results indicate that callose metabolism is active and very important not only in microsporogenesis but also in microgametogenesis in rice.

营养细胞细胞中继续积累胼胝，花粉成熟对胼胝在小成和发育过程中功能进行了讨论。

The ontogeny of epiphyllous microsporangia Ginkgo indicated that the microsporophyll in Ginkgo is of phyllome origin.Possibly, the epiphyllous microsporangia is a peculiar chimera.

叶生小囊银杏个体发生，表明银杏小叶有叶性来源性，叶生小囊银杏可能是一种奇特嵌合体。

There are a lot of sporule mother cells in every sporangium, they are respective via meiosis hind, produce the sporule of 4 monoploid.

每个囊中有许多小母细胞,它们各自经减数后,产生四个单倍体小。

Ubisch bodies and lipid bodies are found in the glandular tapetums. In meiosis of microsporocyte, cytokinesisis is a simultaneous type, which produces an isobilateral tetrad.

小母细胞减数胞为同时型,产生正四面体型四体。