胚细胞层
![胚细胞层](../cache/1179647.jpg)
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胚细胞随着层积时间的延长不断分裂,顶端分生组织逐渐分化,胚体积增大,由乳白色转为淡绿色,逐渐发育成熟。
Embryonic cell and apical meristems continue to divide as the time of stratification prolongs , so the embryo increases in volume and turns from ivory-white to viridescence , which are the signs of gradually maturing seed .
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胚细胞和糊粉层中的代谢活性立即活跃起来。
Metabolic activity quickly develops in the cells of the embryo and the aleurone layer .
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胚胎发育到原肠胚时的细胞层,分为内胚层、中胚层、外胚层,各胚层将发育成一定的组织器官。
Germ layer & One of three distinct layers of cells that arise in the inner cell mass , the ectoderm , mesoderm , and endoderm , each of which develops into a distinctly different tissue in the embryo .
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鸡胚胎生殖细胞在鼠胚成纤维细胞饲养层上的生长
Growth of Chicken Embryonic Germ Cells on Mice Embryonic Fibroblasts
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继代培养时将其置于鼠胚成纤维细胞饲养层上,在含生长因子、分化抑制因子的培养体系中培养胚胎生殖细胞。
For subculture the PGCs were plated with mitotically inactive feeder layer cells of mice embryonic fibroblasts . The medium composed of growth factors and differentiation inhibitory factors .