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Int J Mol Sci

Title:		Expressing OsMPK4 Impairs Plant Growth but Enhances the Resistance of Rice to the Striped Stem Borer Chilo suppressalis
Author(s):		Liu X; Li J; Xu L; Wang Q; Lou Y;
Address:		"State Key Laboratory of Rice Biology & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China. 21216107@zju.edu.cn. State Key Laboratory of Rice Biology & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China. jiancai.2007@163.com. State Key Laboratory of Rice Biology & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China. 21616161@zju.edu.cn. State Key Laboratory of Rice Biology & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China. q.wang302@gmail.com. State Key Laboratory of Rice Biology & Ministry of Agriculture Key Lab of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China. yglou@zju.edu.cn"
Journal Title:		Int J Mol Sci
Year:		2018
Volume:		20180413
Issue:		4
Page Number:		-
DOI:		10.3390/ijms19041182
ISSN/ISBN:		1422-0067 (Electronic) 1422-0067 (Linking)
Abstract:		"Mitogen-activated protein kinases (MPKs) play a central role not only in plant growth and development, but also in plant responses to abiotic and biotic stresses, including pathogens. Yet, their role in herbivore-induced plant defenses and their underlying mechanisms remain largely unknown. Here, we cloned a rice MPK gene, OsMPK4, whose expression was induced by mechanical wounding, infestation of the striped stem borer (SSB) Chilo suppressalis, and treatment with jasmonic acid (JA), but not by treatment with salicylic acid (SA). The overexpression of OsMPK4 (oe-MPK4) enhanced constitutive and/or SSB-induced levels of JA, jasmonoyl-l-isoleucine (JA-Ile), ethylene (ET), and SA, as well as the activity of elicited trypsin proteinase inhibitors (TrypPIs), and reduced SSB performance. On the other hand, compared to wild-type plants, oe-MPK4 lines in the greenhouse showed growth retardation. These findings suggest that OsMPK4, by regulating JA-, ET-, and SA-mediated signaling pathways, functions as a positive regulator of rice resistance to the SSB and a negative regulator of rice growth"
Keywords:		"Animals Cloning, Molecular Cyclopentanes/pharmacology *Disease Resistance Ethylenes/pharmacology Gene Expression Regulation, Plant/drug effects Lepidoptera/physiology Mitogen-Activated Protein Kinases/*genetics/*metabolism Oryza/genetics/*growth & develop;"
Notes:		"MedlineLiu, Xiaoli Li, Jiancai Xu, Liping Wang, Qi Lou, Yonggen eng Switzerland 2018/04/14 Int J Mol Sci. 2018 Apr 13; 19(4):1182. doi: 10.3390/ijms19041182"