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Plant J

Title:		"An EAR-motif-containing ERF transcription factor affects herbivore-induced signaling, defense and resistance in rice"
Author(s):		Lu J; Ju H; Zhou G; Zhu C; Erb M; Wang X; Wang P; Lou Y;
Address:		"National Key Laboratory of Rice Biology, Institute of Insect Science, Zhejiang University, Hangzhou 310029, China"
Journal Title:		Plant J
Year:		2011
Volume:		20110830
Issue:		4
Page Number:		583 - 596
DOI:		10.1111/j.1365-313X.2011.04709.x
ISSN/ISBN:		1365-313X (Electronic) 0960-7412 (Linking)
Abstract:		"Ethylene responsive factors (ERFs) are a large family of plant-specific transcription factors that are involved in the regulation of plant development and stress responses. However, little to nothing is known about their role in herbivore-induced defense. We discovered a nucleus-localized ERF gene in rice (Oryza sativa), OsERF3, that was rapidly up-regulated in response to feeding by the rice striped stem borer (SSB) Chilo suppressalis. Antisense and over-expression of OsERF3 revealed that it positively affects transcript levels of two mitogen-activated protein kinases (MAPKs) and two WRKY genes as well as concentrations of jasmonate (JA), salicylate (SA) and the activity of trypsin protease inhibitors (TrypPIs). OsERF3 was also found to mediate the resistance of rice to SSB. On the other hand, OsERF3 was slightly suppressed by the rice brown planthopper (BPH) Nilaparvata lugens (Stal) and increased susceptibility to this piercing sucking insect, possibly by suppressing H(2)O(2) biosynthesis. We propose that OsERF3 affects early components of herbivore-induced defense responses by suppressing MAPK repressors and modulating JA, SA, ethylene and H(2)O(2) pathways as well as plant resistance. Our results also illustrate that OsERF3 acts as a central switch that gears the plant's metabolism towards an appropriate response to chewing or piercing/sucking insects"
Keywords:		"Animals Cloning, Molecular Cyclopentanes/metabolism Ethylenes/biosynthesis Gene Expression Regulation, Plant Genes, Regulator Hemiptera *Herbivory Hydrogen Peroxide/metabolism Oryza/*genetics/physiology Oxylipins/metabolism Plant Proteins/genetics/*metabo;"
Notes:		"MedlineLu, Jing Ju, Hongping Zhou, Guoxin Zhu, Chuanshu Erb, Matthias Wang, Xiaopeng Wang, Peng Lou, Yonggen eng Research Support, Non-U.S. Gov't England 2011/08/13 Plant J. 2011 Nov; 68(4):583-96. doi: 10.1111/j.1365-313X.2011.04709.x. Epub 2011 Aug 30"