胚细胞

Following fertilization the emdosperm becomes and remains multinucleate for some time, becoming cellular near the time of pit-hardening

受精以后，胚乳变成多核，并继续存在一个时期，近硬核期时变成细胞状。营火的余烬。

Following fertilization the emdosperm becomes and remains multinucleate for some time, becoming cellular near the time of pit-hardening

受精以后，胚乳变成多核，并继续存在一个时期，近硬核期时变成细胞状。

The simple pigment epithelial cell layer, the optic ventricle, the primitive neuroblastic layer and the peripheral fibrous layer were observed. The number of both the retinal layer and cellular layer increases in the 35 day old Giant panda.

发现胚后64小时龄大熊猫视网膜的分化程度很低，色素层已形成，但视泡腔明显；神经层由外面数层长梭形、内面数层圆形细胞核及无核的纤维层构成。35天龄大熊猫视网膜细胞层次增多。

BFGF immunoreaction was detected at 3-weeks' embryonic neuroepithelium, and remained positive throughout various development a l stages examined, whereas NGF immunoreaction appeared after 4-weeks. The expres sion varied gradually with the development of embryos. There was no specific EGF immunoreaction in all tissues and stages examined. The occurrence and distribut ion of FGFR, NGFR and EGFR were similar, and their expression altered with the development.

结果显示bFGF和NGF的表达时序不同，b FGF阳性细胞出现较早，在所检测的各个发育阶段均呈阳性表达，而NGF出现较晚，随着胚龄增加，免疫阳性着色逐渐增强，bFGF分布较NGF广泛，而EGF在所检测的各个发育阶段均呈阴性。flg、TrkA、EGFR表达时序和分布相似，三者在所检测的各个发育阶段均呈阳性。

CaB participated in the human odontogen esis. Besides, the express of CaB in human toot h germ development was time-specific and cell-specific.

CaB参与了人釉质及牙本质的形成过程，并且在人牙胚发育过程中的CaB表达具有时间特异性及细胞特异性。

Quinquefolia were mainly studied. All the results are beneficial character of cell engineering of Parthenocissus plants.

本文重点对地锦和五叶地锦的组织培养及体细胞胚发生进行了研究，为地锦属植物的细胞工程研究奠定基础。

The purpose of this study is to establish an efficient way for mouse parthenogenetic activation.

为探讨一种高效的小鼠卵母细胞孤雌激活的方案，进一步提高孤雌囊胚发育率。

Botany Any of various photosynthetic, eukaryotic, multicellular organisms of the kingdom Plantae characteristically producing embryos, containing chloroplasts, having cellulose cell walls, and lacking the power of locomotion.

植物，树：植物界中具有光合作用的，真核生物的多细胞生物体，其特征能产生胚，含有叶绿素，具有纤维素构成的细胞壁，且缺乏运动的能力

Stone fruit trees can not set fruits when abnormal germ development occurs; while pomaceous fruit trees can set fruits without seeds, but the pulp cells grow very slow.

核果类果树在胚芽发育异常时不能坐果。仁果类果树在没有种子时可以坐果，但果肉细胞生长缓慢。

We propose that ethylene is part of a signaling pathway that modulates cell diision in the quiescent center in the stem cell niche during the postembryonic deelopment of the root system.

我们假设在根系统胚后发育过程中，次乙基调节在干细胞维环境静止中心区域的细胞分裂的一个信号转导通路

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。