胚层细胞 meaning in English

protoblast

In the early neurula , cortactin staining signals were detected in the developing primodium of forebrain as early as 10 . 5 hpf ( hours post fertilization ) , at the same time the tailbud areas were highly stained too . later , the staining was concentrating in the developing neural rod while paraxial mesoderm derivatives were not stained
在早期神经胚，神经系统中的前脑原基最先出现染色，并保持头尾两端处染色最强的图式，随后，染色集中分布在发育中的神经龙骨中，但近轴中胚层细胞没有染色。