N (formerly) any of three layers in an apical meristem that were thought to give rise to the different parts of the plant: the apical meristem is now regarded as comprising two layers 组织原 →see tunica
The apical initial cells of the root top were arranged in cone shape and no typical histogen zones were found.
根的顶端原始细胞为圆锥状排列的原始细胞群，未见典型的组织原分区。
While these initial studies are focused on male pattern hair loss, Histogen is considering a small side study for hair loss in women and diffused hair loss.
因为我们的初始研究都是针对于男性脱发，所以我们正在考虑对女性脱发的不同做一个单方的研究。
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