archesporial

常见例句

• The megasporogenesis in Psathyrostachys huashanica begins with archesporial cell.
  摘要华山新麦草大孢子发生始于孢原细胞。
• Fur hermore there are double archesporial cells and double embryo sacs in Psathyrostachys huashanica.
  此外，在华山新麦草中发现有双孢原细胞及双胚囊的现象。
• The ovule is bitegminous and tenuinucellate.The archesporial cell locates under the nucellus epidermis, which develops into fuctional megasporocyte.
  孢原细胞位于珠心表皮之下，直接起大孢子母细胞的功能。
• The single megaspore archesporial cell origins from nucellus hypodermal layer and becomes the megaspore mother cell directly, which as tenuinucellate.
  大孢子孢原细胞起源于珠心次表皮层，并直接行使大孢子母细胞功能，为薄珠心。
• The one megaspore archesporial under the nucellar epidermal cell differentiate directly into megaspore mother cell, the meiosis of megaspore mother cell are nomally.
  大孢子孢原细胞在直接发育为大孢子母细胞，大孢子母细胞减数分裂正常，四分体直线型；
• The archesporial cells differentiated from single archesporium, the meiosis of microspore mother cells were continuous type and tetrads were tetrahedral.
  小孢子母细胞减数分裂为连续型，形成的四分体为四面体型排列；
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