Gawarecka Katarzyna, Ahn Ji Hoon
Department of Life Sciences, Korea University, Seoul, South Korea.
Front Plant Sci. 2021 Dec 24;12:765995. doi: 10.3389/fpls.2021.765995. eCollection 2021.
In plants, a diverse set of pathways regulate the transition to flowering, leading to remarkable developmental flexibility. Although the importance of photoperiod in the regulation of flowering time is well known, increasing evidence suggests the existence of crosstalk among the flowering pathways regulated by photoperiod and metabolic pathways. For example, isoprenoid-derived phytohormones (abscisic acid, gibberellins, brassinosteroids, and cytokinins) play important roles in regulating flowering time. Moreover, emerging evidence reveals that other metabolites, such as chlorophylls and carotenoids, as well as sugar metabolism and sugar accumulation, also affect flowering time. In this review, we summarize recent findings on the roles of isoprenoid-derived metabolites and sugars in the regulation of flowering time and how day length affects these factors.
在植物中，多种途径调控着向开花的转变，从而带来显著的发育灵活性。尽管光周期在开花时间调控中的重要性已广为人知，但越来越多的证据表明，由光周期调控的开花途径与代谢途径之间存在相互作用。例如，类异戊二烯衍生的植物激素（脱落酸、赤霉素、油菜素内酯和细胞分裂素）在调控开花时间方面发挥着重要作用。此外，新出现的证据表明，其他代谢产物，如叶绿素和类胡萝卜素，以及糖代谢和糖积累，也会影响开花时间。在本综述中，我们总结了关于类异戊二烯衍生代谢产物和糖类在开花时间调控中的作用以及日长如何影响这些因素的最新研究发现。
