Yang Jing, Duan Guihua, Li Chunqin, Liu Lin, Han Guangyu, Zhang Yaling, Wang Changmi
State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China.
Key Laboratory of Agro-Biodiversity and Pest Management of the Ministry of Education, Yunnan Agricultural University, Kunming, China.
Front Plant Sci. 2019 Oct 18;10:1349. doi: 10.3389/fpls.2019.01349. eCollection 2019.
Plant hormones play central roles in plant growth, developmental processes, and plant response to biotic and abiotic stresses. On the one hand, plant hormones may allocate limited resources to the most serious stresses; on the other hand, the crosstalks among multiple plant hormone signaling regulate the balance between plant growth and defense. Many studies have reported the mechanism of crosstalks between jasmonic acid (JA) and other plant hormones in plant growth and stress responses. Based on these studies, this paper mainly reviews the crosstalks between JA and other plant hormone signaling in regulating the balance between plant growth and defense response. The suppressor proteins JASMONATE ZIM DOMAIN PROTEIN (JAZ) and MYC2 as the key components in the crosstalks are also highlighted in the review. We conclude that JA interacts with other hormone signaling pathways [such as auxin, ethylene (ET), abscisic acid (ABA), salicylic acid (SA), brassinosteroids (BRs), and gibberellin (GA)] to regulate plant growth, abiotic stress tolerance, and defense resistance against hemibiotrophic pathogens such as and . Notably, JA may act as a core signal in the phytohormone signaling network.
植物激素在植物生长、发育过程以及植物对生物和非生物胁迫的响应中发挥着核心作用。一方面，植物激素可能会将有限的资源分配给最严重的胁迫；另一方面，多种植物激素信号之间的相互作用调节着植物生长与防御之间的平衡。许多研究报道了茉莉酸（JA）与其他植物激素在植物生长和胁迫响应中的相互作用机制。基于这些研究，本文主要综述了JA与其他植物激素信号在调节植物生长与防御反应平衡方面的相互作用。作为相互作用关键组分的抑制蛋白茉莉酸ZIM结构域蛋白（JAZ）和MYC2在综述中也得到了重点阐述。我们得出结论，JA与其他激素信号通路[如生长素、乙烯（ET）、脱落酸（ABA）、水杨酸（SA）、油菜素内酯（BRs）和赤霉素（GA）]相互作用，以调节植物生长、非生物胁迫耐受性以及对半活体营养型病原菌如 和 的防御抗性。值得注意的是，JA可能在植物激素信号网络中充当核心信号。
