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Plant Signal Behav

Title:		Dose-dependent methyl jasmonate effects on photosynthetic traits and volatile emissions: biphasic kinetics and stomatal regulation
Author(s):		Jiang Y; Ye J; Niinemets U;
Address:		"Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia. College of Horticulture, Nanjing Agricultural University, Nanjing China. School of Forestry and Bio-Technology, Zhejiang A&F University, Hangzhou, Zhejiang, China. Estonian Academy of Sciences, Tallinn, Estonia"
Journal Title:		Plant Signal Behav
Year:		2021
Volume:		20210421
Issue:		7
Page Number:		1917169 -
DOI:		10.1080/15592324.2021.1917169
ISSN/ISBN:		1559-2324 (Electronic) 1559-2316 (Print) 1559-2316 (Linking)
Abstract:		"Exogenous application of methyl jasmonate (MeJA) has been extensively used to study jasmonate-dependent signaling events triggered by biotic stresses. MeJA application leads to complex jasmonate-dependent physiological responses, including changes in stomatal openness and induction of emissions of a multitude of volatile compounds. Whether the alterations in stomatal conductance and emissions of MeJA-induced volatiles are quantitatively associated with MeJA dose, and whether the induced volatile emissions are regulated by modifications in stomatal conductance had been poorly known until recently. Our latest studies highlighted a biphasic kinetics of jasmonate-dependent volatile emissions induced by MeJA treatment in the model species cucumber (Cucumis sativus), indicating induction of an immediate stress response and subsequent gene-expression level response. Both the immediate and delayed responses were MeJA dose-dependent. The studies further demonstrated that stomata modulated the kinetics of emissions of water-soluble volatiles in a MeJA dose-dependent manner. These studies contribute to understanding of plant short- and long-term responses to different biotic stress severities as simulated by treatments with a range of MeJA doses corresponding to mild to acute stress"
Keywords:		"Acetates/*pharmacology Cucumis sativus/*drug effects/physiology Cyclopentanes/*pharmacology Dose-Response Relationship, Drug Kinetics Oxylipins/*pharmacology Photosynthesis/*drug effects Plant Stomata/*physiology Stress, Physiological Volatile Organic Com;"
Notes:		"MedlineJiang, Yifan Ye, Jiayan Niinemets, Ulo eng Research Support, Non-U.S. Gov't 2021/04/22 Plant Signal Behav. 2021 Jul 3; 16(7):1917169. doi: 10.1080/15592324.2021.1917169. Epub 2021 Apr 21"