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Plant Signal Behav

Title:		Structure-activity relationship of volatile compounds that induce defense-related genes in maize seedlings
Author(s):		Tanaka Y; Fujita K; Date M; Watanabe B; Matsui K;
Address:		"Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan. Chemistry Laboratory, The Jikei University School of Medicine, Chofu, Japan"
Journal Title:		Plant Signal Behav
Year:		2023
Volume:		20230716
Issue:
Page Number:		2234115 -
DOI:		10.1080/15592324.2023.2234115
ISSN/ISBN:		1559-2324 (Electronic) 1559-2316 (Linking)
Abstract:		"Volatile organic compounds mediate plant-to-plant communication, and plants receiving volatile cues can acquire greater defenses against attackers. It has been expected that volatiles are received by factors that eventually lead to the induction of defense-related gene expression; however, the nature of these factors remain unclear. Structure-activity relationship analysis of gene expression induction by volatiles should provide insights into the nature of these factors. We conducted a structure-activity relationship study using maize seedlings and (Z)-3-hexen-1-yl acetate (Z3HAC) as the lead compound. The acid portion of Z3HAC was not essential, and (Z)-3-hexen-1-ol (Z3HOL), which is formed after the hydrolysis of Z3HAC, is likely the structure essential for the upregulation of the genes. The double bond of Z3HOL is essential; however, its geometry is indistinguishable. Strict specificity was detected regarding the length of the methylene chain on the alpha- and omega-sides of the double bond, and therefore, the 3-hexen-1-ol structure was found to be the ultimate structure. This finding provides insight into the nature of the factors that interact with a volatile compound and subsequently activate signaling pathways, leading to the upregulation of a subset of defense genes"
Keywords:		Green leaf volatiles RT-qPCR Zea mays defense-gene induction plant communication;
Notes:		"PublisherTanaka, Yasuhiro Fujita, Kenya Date, Minori Watanabe, Bunta Matsui, Kenji eng 2023/07/16 Plant Signal Behav. 2023 Jul 16:2234115. doi: 10.1080/15592324.2023.2234115"