On the basis of the structure of vegetable organs, the first leaf and root are the earliest organs in the development of embryo.
据营养器官的形态结构判断，在海金沙胚胎发育中最早出现的营养器官是叶和根。
The bioactivity was tested by dorsal root ganglia (DRG) of chicken embryo culture.
经鸡胚背根神经节(DRG)培养法测定具有生物学活性。
Objective To exploit stable and reliable conditions for NGF bioassay usi ng dorsal root ganglia of chick embryo.
目的探索一套稳定可靠的鸡胚背根神经节测定NGF活性的实验条件。
Using chicken embryo dorsal root ganglia assay, the biological activity of NGF was determined.
用鸡胚背根培养法证明其具有刺激神经生长的作用。
Embryo like structure was found being formed from shoot meristem and root meristem and it was similar with radicle and plumule of the embryo.
芽的顶端分生组织与随后产生的根的分生组织共同构成胚状结构，与单子叶植物种子胚相似。
The apical cell of the first leaf and of the first root originate almost at the same time after the embryo reaches to the 32-celled phase.
胚胎在32细胞阶段后，第一叶顶端细胞与第一根顶端细胞几乎同时发生。
The apical cell of the first leaf and of the first root originate almost at the same time after the embryo reaches to the 32-celled phase.
胚胎在32细胞阶段后，第一叶顶端细胞与第一根顶端细胞几乎同时发生。
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