Two cDNA libraries were constructed from microdissected 214 rice proembryos (2-3 d after pollination) and 121 just differentiating young embryos (3-5 d after pollination) respectively through RT_PCR technique.
由原胚向开始形成胚器官的分化胚过渡 ,必定有一系列特异表达基因的调控。
The zygote divides horizontally and develops into a basal cell and an apical cell which simultaneously divide horizontally and develop to a rectilinear proembryo with four cells.
顶端细胞和基细胞都进行横向分裂 ,形成直线状 4-细胞的原胚 。
Egg cells, zygotes and proembryos of Allium tuberosum Roxb were isolated using an enzymatic digestion.
用同样的方法也成功地分离了韭菜的合子和早期原胚。
The multicellular proembryo and globular embryo possessed uniserial or untidy disposal multi-cellular suspensor.
在多细胞原胚及球形胚期具有单列或不规则排列的多细胞胚柄。
The proembryo from zygotic cell divisions may be divided into three parts: proper, hypoblast and suspensor.
玉米合子细胞分裂形成的原胚分为胚柄、基与胚体三部分。
The scientist has made a pointed comparison between suspensors of plant embryos and mammalian trophoblasts.
这位科学家把植物胚的胚柄与哺乳动物的滋养层做了直接的比较。
It also serves as a passage for nutrients to pass from the parent tissue to the embryo.
另一方面，胚柄还是营养物质从母体组织向胚胎运送的通道。
The suspensor is thought to function as a channel for the conduction of food materials.
胚柄被认为是作为运输营养物质的通道。
These plants develop elaborate haustorial structures from the suspensor.
这些植物从胚柄中发育出精致的吸器组织。
Early division phase embryos may use metabolites provided by the suspensor, persistent and degenerating synergids.
早期分裂时期的胚可以利用胚柄，宿存和退化中的助细胞所提供的代谢物。
the scar on certain seeds marking its point of attachment to the funicle.
种子上的疤痕，系胚珠于胚珠柄的痕迹。
A stalk connecting an ovule or a seed with the placenta.
珠柄与胚珠或含胎座的种子相接的叶柄
The scar on a seed, such as a bean, indicating the point of attachment to the funiculus.
种脐种子（如豆）上的疤痕，系胚珠于胚珠柄的痕迹
Among cotyledon, petiole of cotyledon, hypocotyl, and radicle, hypocotyl has the most responsive explants to2,4- D.
在子叶、叶柄、胚轴以及胚根四者当中,下胚轴对2,4-D的反应状况最好。
Funicle (funiculus) The stalk attaching the ovule (later the seed) to the placenta in angiosperm ovaries. Nutrients pass through the funicle to the ovule and seed.
珠柄：被子植物子房中连接胚珠（之后的种子）和胎座的柄。营养物质通过珠柄传递到胚珠和种子。
Comparison of Ca～(2+) Location in the Plant Mature Cell Walls and Flammulina Velutipes Stipe;
黄瓜黄化苗下胚轴与金针菇菌柄细胞壁Ca～（2+）定位比较研究
Having an ovule partially inverted and curved such that the micropyle nearly meets the funiculus.
弯生胚珠的具有部分地反向生长并变弯曲以致卵孔几乎碰到珠柄的胚珠的
The portion of the funiculus that is united to the ovule wall, commonly visible as a line or ridge on the seed coat.
脊，种脊植物珠柄与胚珠壁连接的部分，通常表现为果实外壳上的一道条纹或突起
A fleshy, usually brightly colored cover of a seed, arising from the hilum or funiculus.
假种皮一种肉质的，通常色彩光亮的种子皮，由种脐或胚珠柄发育而来
A sessile leaf has no petiole.
无柄的叶没有叶柄。
A handle of a tool, such as an ax, a chisel, or a hammer.
柄工具的手柄，如斧头、凿子或锤子的柄