茉莉酸：一种对植物代谢至关重要的激素。

Jasmonate: A hormone of primary importance for plant metabolism.

机构信息

Ghent University, Department of Plant Biotechnology and Bioinformatics, Technologiepark 71, B9052 Ghent, Belgium; VIB Center for Plant Systems Biology, Technologiepark 71, B-9052 Ghent, Belgium.

出版信息

Curr Opin Plant Biol. 2022 Jun;67:102197. doi: 10.1016/j.pbi.2022.102197. Epub 2022 Mar 3.

DOI:10.1016/j.pbi.2022.102197

PMID:35248983

Abstract

Over the years, jasmonates (JAs) have become recognized as one of the main plant hormones that regulate stress responses by activating defense programs and the production of specialized metabolites. High JA levels have been associated with reduced plant growth, supposedly as a result of the reallocation of carbon sources from primary growth to the biosynthesis of defense compounds. Recent advances suggest however that tight regulatory networks integrate several sensing pathways to steer plant metabolism, and thereby drive the trade-off between growth and defense. In this review, we discuss how JA influences primary metabolism and how it is connected to light-regulated processes, nutrient sensing and energy metabolism. Finally, we speculate that JA, in a conceptual parallelism with adrenaline for humans, overall boosts cellular processes to keep up with an increased metabolic demand during harsh times.

摘要

多年来，茉莉酸（JAs）已被公认为主要的植物激素之一，通过激活防御程序和特殊代谢物的产生来调节应激反应。高水平的 JAs 与植物生长减少有关，这可能是由于碳源从初级生长重新分配到防御化合物的生物合成。然而，最近的进展表明，紧密的调控网络整合了几个感应途径来引导植物代谢，从而推动生长和防御之间的权衡。在这篇综述中，我们讨论了 JA 如何影响初级代谢，以及它如何与光调控过程、营养感应和能量代谢联系起来。最后，我们推测 JA 与人类的肾上腺素在概念上具有平行性，总体上可以促进细胞过程，以在恶劣环境下满足增加的代谢需求。