« Previous AbstractCaterpillar attack triggers accumulation of the toxic maize protein RIP2    Next AbstractDiurnal regulation of the floral scent emission by light and circadian rhythm in the Phalaenopsis orchids »

Mol Plant Microbe Interact

Title:		Herbivore cues from the fall armyworm (Spodoptera frugiperda) larvae trigger direct defenses in maize
Author(s):		Chuang WP; Ray S; Acevedo FE; Peiffer M; Felton GW; Luthe DS;
Address:
Journal Title:		Mol Plant Microbe Interact
Year:		2014
Volume:		27
Issue:		5
Page Number:		461 - 470
DOI:		10.1094/MPMI-07-13-0193-R
ISSN/ISBN:		0894-0282 (Print) 0894-0282 (Linking)
Abstract:		"In addition to feeding damage, herbivores release cues that are recognized by plants to elicit defenses. Caterpillar oral secretions have been shown to trigger herbivore defense responses in several different plant species. In this study, the effects of two fall armyworm (Spodoptera frugiperda) oral secretions (saliva and regurgitant) on caterpillar defense responses in maize (Zea mays) were examined. Only minute amounts of regurgitant were deposited on the maize leaf during larval feeding bouts and its application to leaves failed to induce the expression of several herbivore defense genes. On the other hand, caterpillars consistently deposited saliva on leaves during feeding and the expression of several maize defense genes significantly increased in response to saliva application and larval feeding. However, feeding by ablated caterpillars with impaired salivation did not induce these defenses. Furthermore, bioassays indicated that feeding by unablated caterpillars significantly enhanced defenses when compared with that of ablated caterpillars. Another critical finding was that the maize genotype and stage of development affected the expression of defense genes in response to wounding and regurgitant treatments. These results demonstrate that fall armyworm saliva contains elicitors that trigger herbivore defenses in maize"
Keywords:		"Animals Cues Feeding Behavior *Gene Expression Regulation, Plant Genotype Herbivory Larva Plant Diseases/*immunology/parasitology *Plant Immunity Plant Leaves/genetics/immunology/parasitology/physiology Plant Proteins/genetics Saliva Spodoptera/cytology/*;"
Notes:		"MedlineChuang, Wen-Po Ray, Swayamjit Acevedo, Flor Edith Peiffer, Michelle Felton, Gary W Luthe, Dawn S eng Research Support, U.S. Gov't, Non-P.H.S. 2013/12/18 Mol Plant Microbe Interact. 2014 May; 27(5):461-70. doi: 10.1094/MPMI-07-13-0193-R"