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J Agric Food Chem

Title:		Elucidation of the Regular Emission Mechanism of Volatile beta-Ocimene with Anti-insect Function from Tea Plants (Camellia sinensis) Exposed to Herbivore Attack
Author(s):		Jian G; Jia Y; Li J; Zhou X; Liao Y; Dai G; Zhou Y; Tang J; Zeng L;
Address:		"Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China. University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China. Tea Research Institute, Guangdong Academy of Agricultural Sciences & Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, No. 6 Dafeng Road, Tianhe District, Guangzhou 510640, China. Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China"
Journal Title:		J Agric Food Chem
Year:		2021
Volume:		20210920
Issue:		38
Page Number:		11204 - 11215
DOI:		10.1021/acs.jafc.1c03534
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"Herbivore-induced plant volatiles (HIPVs) play an important role in insect resistance. As a common HIPV in tea plants (Camellia sinensis), beta-ocimene has shown anti-insect function in other plants. However, whether beta-ocimene in tea plants also provides insect resistance, and its mechanism of synthesis and emission are unknown. In this study, beta-ocimene was confirmed to interfere with tea geometrid growth via signaling. Light was identified as the key factor controlling regular emission of beta-ocimene induced by the wounding from tea geometrids. beta-Ocimene synthase (CsBOS1) was located in plastids and catalyzed beta-ocimene formation in overexpressed tobacco. CsBOS1 expression in tea leaves attacked by tea geometrids showed a day-low and night-high variation pattern, while CsABCG expression involved in volatile emission showed the opposite pattern. These two genes might regulate the regular beta-ocimene emission from tea plants induced by tea geometrid attack. This study advances the understanding on HIPV emission and signaling in tea plants"
Keywords:		Acyclic Monoterpenes Alkenes Animals *Camellia sinensis Herbivory Insecta Plant Leaves Tea Camellia sinensis insect-resistant regular emission volatile beta-ocimene synthase;
Notes:		"MedlineJian, Guotai Jia, Yongxia Li, Jianlong Zhou, Xiaochen Liao, Yinyin Dai, Guangyi Zhou, Ying Tang, Jinchi Zeng, Lanting eng 2021/09/22 J Agric Food Chem. 2021 Sep 29; 69(38):11204-11215. doi: 10.1021/acs.jafc.1c03534. Epub 2021 Sep 20"