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Plant Cell Environ

Title:		Suppression of a leucine-rich repeat receptor-like kinase enhances host plant resistance to a specialist herbivore
Author(s):		Ye M; Kuai P; Hu L; Ye M; Sun H; Erb M; Lou Y;
Address:		"State Key Laboratory of Rice Biology & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou, China. Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China. Institute of Plant Sciences, University of Bern, Bern, Switzerland"
Journal Title:		Plant Cell Environ
Year:		2020
Volume:		20200728
Issue:		10
Page Number:		2571 - 2585
DOI:		10.1111/pce.13834
ISSN/ISBN:		1365-3040 (Electronic) 0140-7791 (Linking)
Abstract:		"The mechanisms by which herbivores induce plant defenses are well studied. However, how specialized herbivores suppress plant resistance is still poorly understood. Here, we discovered a rice (Oryza sativa) leucine-rich repeat receptor-like kinase, OsLRR-RLK2, which is induced upon attack by gravid females of a specialist piercing-sucking herbivore, the brown planthopper (BPH, Nilaparvata lugens). Silencing OsLRR-RLK2 decreases the constitutive activity of mitogen-activated protein kinase (OsMPK6) and alters BPH-induced transcript levels of several defense-related WRKY transcription factors. Moreover, silencing OsLRR-RLK2 reduces BPH-induction of jasmonic acid and ethylene but promotes the biosynthesis of both elicited salicylic acid and H(2) O(2) ; silencing also enhances the production of volatiles emitted from rice plants infested with gravid BPH females. These changes decrease BPH preference and performance in the glasshouse and the field. These findings suggest that OsLRR-RLK2, by regulating the plant's defense-related signaling profile, increases the susceptibility of rice to BPH, and that BPH infestation influences the expression of OsLRR-RLK2, suppressing the resistance of rice to BPH"
Keywords:		"Animals Cloning, Molecular Gene Expression Regulation, Plant *Hemiptera Oryza/metabolism/*physiology *Plant Defense Against Herbivory Plant Proteins/genetics/metabolism/*physiology Plants, Genetically Modified Protein Serine-Threonine Kinases/genetics/met;"
Notes:		"MedlineYe, Meng Kuai, Peng Hu, Lingfei Ye, Miaofen Sun, Hao Erb, Matthias Lou, Yonggen eng Research Support, Non-U.S. Gov't 2020/07/01 Plant Cell Environ. 2020 Oct; 43(10):2571-2585. doi: 10.1111/pce.13834. Epub 2020 Jul 28"