In angiosperms, floral transition is a key developmental transition from the vegetative to reproductive growth, and requires precise regulation to maximize the reproductive success. A complex regulatory network governs this transition through integrating flowering pathways in response to multiple exogenous and endogenous cues. Phytohormones are essential for proper plant developmental regulation and have been extensively studied for their involvement in the floral transition. Among various phytohormones, gibberellin (GA) plays a major role in affecting flowering in the model plant Arabidopsis thaliana. The GA pathway interact with other flowering genetic pathways and phytohormone signaling pathways through either DELLA proteins or mediating GA homeostasis. In this review, we summarize the recent advances in understanding the mechanisms of DELLA‐mediated GA pathway in flowering time control in Arabidopsis, and discuss its possible link with other phytohormone pathways during the floral transition.

中文翻译：

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赤霉素信号传导调控拟南芥开花的新见解。

在被子植物中，花期过渡是从营养生长到生殖生长的关键发育过渡，需要精确的调控才能使生殖成功最大化。复杂的调控网络通过整合开花途径响应多种外源和内源线索来控制这种过渡。植物激素对于适当的植物发育调节是必不可少的，并且已被广泛研究，因为它们参与了花期过渡。在各种植物激素中，赤霉素（GA）在影响拟南芥拟南芥开花中起主要作用。。GA途径通过DELLA蛋白或介导的GA稳态与其他开花遗传途径和植物激素信号传导途径相互作用。在这篇综述中，我们总结了了解DELLA介导的GA途径在拟南芥开花时间控制中的机制的最新进展，并讨论了其在花期过渡期间与其他植物激素途径的可能联系。