nucellus
- 单词发音：英 [ nu:'seləs ] 美 [ nu'seləs ]
- 基本解释：n.[植]珠心
- nucellus 是什么意思及中文翻译：
- 名词(n.) 珠心
- nucellus 词态变化： 复数: nucelli
nucellus 相关例句更多>
- The integument grew fast and overgrew the nucellus.
珠被生长较快, 并逐渐包围珠心。
- Soluble polysaccharides was observed in the nucellus cells.
珠心细胞中只见到可溶性多糖。
- The nucellus is usually degraded and absorbed as the endosperm develops.
珠心通常在胚乳发育时被分解和吸收。
- The tube nucleus disintegrates as the pollen tube penetrates the nucellus.
另外的粉管核会在花粉管穿过珠心时发生分裂。
- The female archesporium differentiates from the single cell under the epidermis of nucellus.
雌性孢原处于珠心表皮之下，为单细胞。
- The archesporial cell below nucellus epiderm functions directly as the megaspore mother cell.
珠心表皮下的雌性孢原直接发育为大孢子母细胞。
- Food materials may be stored in a special tissue derived from the nucellus, called the perisperm.
营养物质可以贮藏于由珠心产生的一种特殊组织，叫外胚乳。
- The nucellus cells could differentiate the sexual cell under quite low concentration of exogenous hormones.
珠心细胞在低浓度的外源激素条件下可以分化性细胞。
- Mature ovule was componented of nucellus, integument, bead handles, combined point and composition of the nucellar beak.
成熟的胚珠是由珠心、珠被、珠柄，合点和珠心喙组成。
相关单词
常用英语单词表