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Hortic Res

Title:		H and HL synergistically regulate jasmonate-triggered trichome formation in tomato
Author(s):		Hua B; Chang J; Han X; Xu Z; Hu S; Li S; Wang R; Yang L; Yang M; Wu S; Shen J; Yu X; Wu S;
Address:		"College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Fujian Agriculture and Forestry University, Fuzhou 350002, China. College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China"
Journal Title:		Hortic Res
Year:		2022
Volume:		20220120
Issue:
Page Number:		-
DOI:		10.1093/hr/uhab080
ISSN/ISBN:		2662-6810 (Print) 2052-7276 (Electronic) 2052-7276 (Linking)
Abstract:		"The development of trichomes, which protect plants against herbivores, is affected by various stresses. In tomato, previous studies showed that stress triggered JA signaling influences trichome formation, but the underlying mechanism is not fully resolved. Here, we found two C2H2 zinc finger proteins synergistically regulate JA-induced trichome formation in tomato. The naturally occurring mutations in H and its close homolog H-like gene in a spontaneous mutant, LA3172 cause severely affected trcihome development. Compared with respective single mutant, h/hl double mutant displayed more severe trichome defects in all tissues. Despite the partially redundant function, H and HL genes regulate the trichome formation in the spatially distinct manner, with HL more involved in hypocotyls and leaves, while H more involved in stems and sepals. Furthermore??ethe activity of H/HL is essential for JA-triggered trichome formation. JA signaling inhibitor SlJAZ2 represses the activity of H and HL via physical interaction, resulting in the activation of THM1, a negative regulator of trichome formation. Our results provide novel insight into the mechanism of the trichome formation in response to stress induced JA signaling in tomato"
Keywords:
Notes:		"PublisherHua, Bing Chang, Jiang Han, Xiaoqian Xu, Zhijing Hu, Shourong Li, Shuang Wang, Renyin Yang, Liling Yang, Meina Wu, Shasha Shen, Jingyuan Yu, Xiaomin Wu, Shuang eng England 2022/01/21 Hortic Res. 2022 Jan 20; 9:uhab080. doi: 10.1093/hr/uhab080"