在经过生长期的表皮茎上，施用茉莉酸能够促进各个伸长单位茎中次生乳管的分化。

In the epicormic shoot stem which passed a growth season, the secondary laticifer differentiation of all the extension parts was accelerated by JA application.

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这些干细胞在实验室里生长，分化，并成为一种新的工具，有利于科学家们研究引发疾病的细胞是如何发育的。

The transformed cells grow and divide in the laboratory, giving researchers new tools to study the cellular processes that underlie the patients' diseases.

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维管束植物会产生一系列不同的小分子信号物质，就是所说的植物激素，它们调控着植物的生长分化进程。

Vascular plants produce an entire series of different small signalling molecules, so-called phytohormones, which regulate growth and differentiation processes.

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