Institut Agro, University of Angers INRAE, IRHS, SFR QUASAV, F-49000 Angers, France.
College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China.
Int J Mol Sci. 2021 Jan 28;22(3):1282. doi: 10.3390/ijms22031282.
Plants adjust their growth and development through a sophisticated regulatory system integrating endogenous and exogenous cues. Many of them rely on intricate crosstalk between nutrients and hormones, an effective way of coupling nutritional and developmental information and ensuring plant survival. Sugars in their different forms such as sucrose, glucose, fructose and trehalose-6-P and the hormone family of cytokinins (CKs) are major regulators of the shoot and root functioning throughout the plant life cycle. While their individual roles have been extensively investigated, their combined effects have unexpectedly received little attention, resulting in many gaps in current knowledge. The present review provides an overview of the relationship between sugars and CKs signaling in the main developmental transition during the plant lifecycle, including seed development, germination, seedling establishment, root and shoot branching, leaf senescence, and flowering. These new insights highlight the diversity and the complexity of the crosstalk between sugars and CKs and raise several questions that will open onto further investigations of these regulation networks orchestrating plant growth and development.
植物通过整合内源性和外源性信号的复杂调节系统来调整其生长和发育。其中许多植物依赖于营养物质和激素之间的复杂串扰，这是一种有效耦合营养和发育信息并确保植物生存的方式。不同形式的糖，如蔗糖、葡萄糖、果糖和海藻糖-6-P 以及细胞分裂素（CKs）激素家族，是整个植物生命周期中芽和根功能的主要调节剂。虽然它们各自的作用已经得到广泛研究，但它们的综合效应出人意料地很少受到关注，导致当前知识存在许多空白。本综述概述了糖和 CKs 信号在植物生命周期中的主要发育转变期间的关系，包括种子发育、萌发、幼苗建立、根和芽分枝、叶片衰老和开花。这些新的见解突出了糖和 CKs 之间串扰的多样性和复杂性，并提出了几个问题，这些问题将进一步探讨这些调节网络对植物生长和发育的调控。
