胚孔
pēi kǒng
- blastopore;gastropore;protostoma;archistome
胚孔
胚孔[pēi kǒng]
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只有胚孔的背唇能够诱导宿主发育的改变。
Only the dorsal lip of the blastopore could induce altered development in the host .
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胚孔封闭前肌节3对，封闭时肌节6对；
Before and after the closure of the germ ring , the embryo had 3 and 6 pairs of myotomes .
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除了个别例外，要获得大量的植物游离胚孔材料，并用于日常的生化分析是困难的。
Barring a few exceptions , it is difficult to obtain large amounts of material of the free nuclear endosperm of plants for routine biochemical analysis .