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Plant Signal Behav

Title:		Salivary signals of European corn borer induce indirect defenses in tomato
Author(s):		Louis J; Luthe DS; Felton GW;
Address:		"Department of Entomology and Center for Chemical Ecology; The Pennsylvania State University; University Park, PA USA. Department of Plant Science and Center for Chemical Ecology; The Pennsylvania State University; University Park, PA USA"
Journal Title:		Plant Signal Behav
Year:		2013
Volume:		20131205
Issue:		11
Page Number:		e27318 -
DOI:		10.4161/psb.27318
ISSN/ISBN:		1559-2324 (Electronic) 1559-2316 (Print) 1559-2316 (Linking)
Abstract:		"Plants can recognize the insect elicitors and activate its defense mechanisms. European Corn Borer (ECB; Ostrinia nubilalis) saliva, produced from the labial salivary glands and released through the spinneret, is responsible for inducing direct defenses in host plants. Glucose oxidase (GOX) present in the ECB saliva induced direct defenses in tomato. By contrast, GOX activity in ECB saliva was insufficient to trigger defenses in maize, suggesting that host-specific salivary elicitors are responsible for inducing direct defenses in host plants. Our current study further examined whether ECB saliva can trigger indirect defenses in tomato. Relative expression levels of TERPENE SYNTHASE5 (TPS5) and HYDROPEROXIDE LYASE (HPL), marker for indirect defenses in host plants, were monitored. Quantitative real-time PCR analysis revealed that ECB saliva can induce the expression of TPS5 and HPL, suggesting that salivary signals can induce indirect defenses in addition to the direct defenses. Further experiments are required to identify different ECB elicitors that are responsible for inducing direct and indirect defenses in host plants"
Keywords:		Animals Europe Lepidoptera/*physiology Solanum lycopersicum/*immunology/*parasitology Plant Proteins/metabolism Saliva/*metabolism Volatile Organic Compounds/metabolism European Corn Borer Hpl Tps5 Tomato indirect defenses saliva;
Notes:		"MedlineLouis, Joe Luthe, Dawn S Felton, Gary W eng Research Support, U.S. Gov't, Non-P.H.S. 2013/12/07 Plant Signal Behav. 2013 Nov; 8(11):e27318. doi: 10.4161/psb.27318. Epub 2013 Dec 5"