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Plant Physiol

Title:		Sustained defense response via volatile signaling and its epigenetic transcriptional regulation
Author(s):		Onosato H; Fujimoto G; Higami T; Sakamoto T; Yamada A; Suzuki T; Ozawa R; Matsunaga S; Seki M; Ueda M; Sako K; Galis I; Arimura GI;
Address:		"Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo 125-8585, Japan. Department of Applied Biological Science, Graduate School of Science and Technology, Tokyo University of Science, Noda 278-8510, Japan. College of Bioscience and Biotechnology, Chubu University, Kasugai 487-8501, Japan. Center for Ecological Research, Kyoto University, Otsu 520-2113, Japan. Department of Integrated Biosciences, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa 277-8562, Japan. Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan. Plant Epigenome Regulation Laboratory, RIKEN Cluster for Pioneering Research, Wako 351-0198, Japan. Institute of Plant Science and Resources (IPSR), Okayama University, Kurashiki 710-0046, Japan"
Journal Title:		Plant Physiol
Year:		2022
Volume:		189
Issue:		2
Page Number:		922 - 933
DOI:		10.1093/plphys/kiac077
ISSN/ISBN:		1532-2548 (Electronic) 0032-0889 (Print) 0032-0889 (Linking)
Abstract:		"Plants perceive volatiles emitted from herbivore-damaged neighboring plants to urgently adapt or prime their defense responses to prepare for forthcoming herbivores. Mechanistically, these volatiles can induce epigenetic regulation based on histone modifications that alter the transcriptional status of defense genes, but little is known about the underlying mechanisms. To understand the roles of such epigenetic regulation of plant volatile signaling, we explored the response of Arabidopsis (Arabidopsis thaliana) plants to the volatile beta-ocimene. Defense traits of Arabidopsis plants toward larvae of Spodoptera litura were induced in response to beta-ocimene, through enriched histone acetylation and elevated transcriptional levels of defense gene regulators, including ethylene response factor genes (ERF8 and ERF104) in leaves. The enhanced defense ability of the plants was maintained for 5 d but not over 10 d after exposure to beta-ocimene, and this coincided with elevated expression of those ERFs in their leaves. An array of histone acetyltransferases, including HAC1, HAC5, and HAM1, were responsible for the induction and maintenance of the anti-herbivore property. HDA6, a histone deacetylase, played a role in the reverse histone remodeling. Collectively, our findings illuminate the role of epigenetic regulation in plant volatile signaling"
Keywords:		"Animals *Arabidopsis/genetics/metabolism *Arabidopsis Proteins/genetics/metabolism Arsenate Reductases/metabolism Epigenesis, Genetic Gene Expression Regulation, Plant Herbivory Histone Deacetylases/metabolism Histones/metabolism Plants/metabolism Spodopt;"
Notes:		"MedlineOnosato, Haruki Fujimoto, Genya Higami, Tomota Sakamoto, Takuya Yamada, Ayaka Suzuki, Takamasa Ozawa, Rika Matsunaga, Sachihiro Seki, Motoaki Ueda, Minoru Sako, Kaori Galis, Ivan Arimura, Gen-Ichiro eng Research Support, Non-U.S. Gov't 2022/02/25 Plant Physiol. 2022 Jun 1; 189(2):922-933. doi: 10.1093/plphys/kiac077"