高浓度雌二醇对卵黄发生前期卵母细胞卵径增大也有明显刺激作用（P＜0．01）；
High concentration of oestradiol had a significant stimulation (P<0. 01) on oocyte diameter increase at the previtellogenesis stage.
在次生造孢细胞、花粉母细胞和小孢子后期都有液泡数量明显增加或体积增大的过程。
At the late stage of the sporogenous cells, mother pollen cells and microspores, the vacuoles remarkably increased in quantity or size.
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