The root transition zone (TZ), located between the apical meristem and basal elongation region, has a unique role in root growth and development. The root TZ is not only the active site for hormone crosstalk, but also the perception site for various environmental cues, such as aluminum (Al) stress and low phosphate (Pi) stress. We propose that the root TZ is a hot spot for the integration of diverse inputs from endogenous (hormonal) and exogenous (sensorial) stimuli to control root growth.

中文翻译：

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根过渡区：信号串扰的热点

位于根尖分生组织和基底伸长区之间的根过渡区（TZ）在根的生长和发育中具有独特的作用。根TZ不仅是激素串扰的活动位点，而且还是各种环境提示（例如铝（Al）胁迫和低磷酸盐（Pi）胁迫）的感知位点。我们认为根TZ是整合来自内源（激素）和外源（感官）刺激的各种输入以控制根生长的热点。