« Previous AbstractHerbivore-induced DMNT catalyzed by CYP82D47 plays an important role in the induction of JA-dependent herbivore resistance of neighboring tea plants    Next Abstract"Molecular characterization of diapause hormone and pheromone biosynthesis activating neuropeptide from the black-back prominent moth, Clostera anastomosis (L.) (Lepidoptera, Notodontidae)" »

Plant Cell Environ

Title:		Herbivore-induced volatiles influence moth preference by increasing the beta-Ocimene emission of neighbouring tea plants
Author(s):		Jing T; Qian X; Du W; Gao T; Li D; Guo D; He F; Yu G; Li S; Schwab W; Wan X; Sun X; Song C;
Address:		"State Key Laboratory of Tea Plant Biology and Utilization, International Joint Laboratory on Tea Chemistry and Health Effects, Anhui Agricultural University, Hefei, China. Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, National Center for Tea Plant Improvement, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China. Biotechnology of Natural Products, Technische Universitat Munchen, Freising, Germany"
Journal Title:		Plant Cell Environ
Year:		2021
Volume:		20210916
Issue:		11
Page Number:		3667 - 3680
DOI:		10.1111/pce.14174
ISSN/ISBN:		1365-3040 (Electronic) 0140-7791 (Linking)
Abstract:		"Herbivore-induced plant volatiles prime neighbouring plants to respond more strongly to subsequent attacks. However, the key volatiles that trigger this state and their priming mechanisms remain largely unknown. The tea geometrid Ectropis obliqua is one of the most devastating leaf-feeding pests of tea plants. Here, plant-plant communication experiments demonstrated that volatiles emitted from tea plants infested by E. obliqua larvae triggered neighbouring plants to release volatiles that repel E. obliqua adult, especially mated females. Volatile analyses revealed that the quantity of eight volatiles increased dramatically when plants were exposed to volatiles emitted by infested tea plants, including (Z)-3-hexenol, linalool, alpha-farnesene, beta-Ocimene and (E)-4,8-dimethyl-1,3,7-nonatriene (DMNT). The results of behavioural bioassays demonstrated that beta-Ocimene strongly repelled mated E. obliqua females. Individual volatile compound exposure experiments revealed that (Z)-3-hexenol, linalool, alpha-farnesene and DMNT triggered the emission of beta-Ocimene from tea plants. Chemical inhibition experiments demonstrated that the emission of beta-Ocimene induced by (Z)-3-hexenol, linalool, alpha-farnesene and DMNT were dependent on Ca(2+) and JA signalling. These findings help us to understand how E. obliqua moths respond to volatiles emitted from tea plants and provide new insight into volatile-mediated plant-plant interactions. They have potential significance for the development of novel insect and pest control strategies in crops"
Keywords:		"Acyclic Monoterpenes/*metabolism Alkenes/*metabolism Animals *Camellia sinensis/growth & development *Herbivory Larva/growth & development/physiology Moths/growth & development/*physiology Sexual Behavior, Animal Volatile Organic Compounds/*metabolism HIP;"
Notes:		"MedlineJing, Tingting Qian, Xiaona Du, Wenkai Gao, Ting Li, Dongfeng Guo, Danyang He, Fan Yu, Guomeng Li, Shupeng Schwab, Wilfried Wan, Xiaochun Sun, Xiaoling Song, Chuankui eng Research Support, Non-U.S. Gov't 2021/08/28 Plant Cell Environ. 2021 Nov; 44(11):3667-3680. doi: 10.1111/pce.14174. Epub 2021 Sep 16"