那么这些细胞是如何分化并形成像根、茎、叶和果实那样不同的结构的呢？

How then can these cells differentiate and form structures as different as roots, stems, leaves, and fruits?

youdao

这并不能排除贾第虫属和副基总目的早期分化，回答这样的问题需要知道真核生物树的根在哪里，这是个难题。

This does not preclude an early divergence for both Giardia and parabasalids, for this depends on where the root of the eukaryotic tree lies, which is difficult to resolve.

youdao

用长1厘米以上和长0.1厘米的幼穗高体培养，其愈伤组织主要是分化根；

Roots were mainly differentiated from the callus of inflorescences while they were 0.1cm and over 1.0cm in length.

youdao