Plant hormones are tightly regulated in response to environmental and developmental signals. It has long been speculated that biosynthesis of hormones occurs broadly in plant organs and that intricate, spatiotemporal regulation of hormones in developing organ primordia is achieved through transport and signal perception. However, recent identification of genes crucial for biosynthesis of auxin and cytokinin reveals that localized hormone biosynthesis also plays an important role in organ growth and patterning.

中文翻译：

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生长素和细胞分裂素的局部生物合成在植物发育中的作用。

响应环境和发育信号，植物激素受到严格调节。长期以来，人们一直认为激素的生物合成广泛发生在植物器官中，并且通过运输和信号感知可以实现器官原基发育过程中激素的复杂时空调节。然而，最近对生长素和细胞分裂素的生物合成至关重要的基因鉴定表明，局部激素的生物合成在器官生长和模式中也起着重要作用。