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A sperm cell develops from a sperm mother cell. 精细胞从精母细胞发育而成。
Blue light may enhance guard cells to pump protons out of the cell. 蓝光可促进保卫细胞将质子送出细胞。
The sporogenous cell develops into microspore mother cell. 造孢细胞直接发育成小孢子母细胞。
Guard cells : control the size of stomatal opening. 保卫细胞:控制气孔张开的大小.
The method for measurement of the length of stoma guard cell could be used to identify ploidy. 因此可利用测量气孔保卫细胞长度的方法鉴定花粉植株的倍性.
The chalazal end megaspore develops into the embryo sac mother cell. 合点端大孢子发育为胚囊母细胞。
Blue light may help guard cells to take up protons outside into the cell. 蓝光可帮助保卫细胞自细胞外获得质子,进入细胞中。
The megaspore mother cell meiosis to form a linear megaspore tetrad. 大孢子母细胞减数分裂产生直线形大孢子四分体。
Of the four products of a megaspore mother cell, three usually abort. 在大孢子母细胞分裂产生的四个孢子中，三个会解体消失。
Spore mother cell A cell that gives rise to four haploid spores by meiosis. 孢子母细胞：可以发生减数分裂产生四个单倍体孢子的细胞。
The method for measurement of the length of stoma guard cell was proved to be a simple way of estimating ploidy of the regenerated plants. 通过测量气孔保卫细胞长度来评估再生植株的染色体倍性是一种简单可行的方法。
The stoma and guard cells are collectively called the stomatal apparatus. 临近保卫细胞处常存在变形了的表皮细胞，被称为副卫细胞。
The arrangement of cellulose microfibrils in the guard-cell walls causes the guard cell to increase in length rather than width as it takes in water. 保卫细胞可以因为自身紧张度的改变而规律性的开闭。
Meiosis of microspore mother cells is synchronous or unsynchronous. 小孢子母细胞减数分裂同步或不同步。
With the increase of chromosome ploidy of pepper, the stomatal density of leaf declined obviously, and the chloroplast number and the width of guard cell rose notablly. 结果显示：随辣椒染色体倍性的提高，叶片气孔密度呈明显下降趋势；保卫细胞叶绿体数与保卫细胞横径呈明显上升趋势；
The nucleus in shrinking cytoplasm of microspore mother cell enters into diakinesis stage.16. 收缩的小孢子母细胞中核进入减数分裂终变期。
The gametophyte is derived from the product of a reduction division in the megaspore mother cell. 该配子体是由大孢子母细胞进行减数分裂而来。
The haploid pollen cells develop in the tapetal zone from spore mother cells. 单倍体花粉细胞由绒毡层提供营养发育。
When the sun rises, the guard cells inflate and bulge to open the stomata, and photosynthesis begins. 当太阳升起时，这些保卫细胞充气并膨胀，打开了气孔，即开始了光合作用。
The nucleus in shrinking cytoplasm of microspore mother cell enters into telophase.17. 收缩的小孢子母细胞质中核进入减数分裂末期。

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