NDLI: Pheromone-Induced Priming of a Defensive Response in Western Flower Thrips ( Journal of Chemical Ecology , Volume 32 , Issue 7 )

Content Provider	Springer Nature Link
Author	Brujin, Paulien J. A. Egas, Martijn Janssen, Arne Sabelis, Maurice W.
Copyright Year	2006
Abstract	The Western flower thrips Frankliniella occidentalis produces conspicuous anal droplets that function as a direct defense against various predators. These droplets also function in pheromonal communication in that they contain a mixture of decyl acetate and dodecyl acetate, which acts as an alarm. Exposure of thrips to synthetic pheromone is known to promote takeoff or refuge seeking, but the effect of the natural pheromone has not yet been studied. Here, we not only studied the response to natural pheromone, but also tested the new hypothesis that the alarm pheromone primes a defensive response in thrips. This test was carried out by measuring the reaction time to a simulated predator attack after exposure to synthetic or natural alarm pheromone (against a control with no pheromone at all). The reaction was quantified in terms of the time it takes a thrips larva to produce a droplet after attack. We found that thrips larvae produce droplets of alarm pheromone faster when cues associated with danger are present. There were no significant differences in reaction times of responses to synthetic pheromone, natural pheromone, or odors from a patch with a predator attacking a thrips larva. This implies that the synthetic pheromone mimics the natural pheromone, and that other cues emanating from the predator play a minor role. We conclude that the alarm pheromone increases the vigilance of the thrips, and this may promote its survival.
Starting Page	1599
Ending Page	1603
Page Count	5
File Format	PDF
ISSN	00980331
Journal	Journal of Chemical Ecology
Volume Number	32
Issue Number	7
e-ISSN	15731561
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2006-05-20
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Alarm pheromone Thrips Frankliniella occidentalis Predator Orius laevigatus Antipredator response Defense priming Biological Microscopy Ecology Agriculture Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Biochemistry Ecology, Evolution, Behavior and Systematics

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Pheromone-Induced Priming of a Defensive Response in Western Flower Thrips ( Journal of Chemical Ecology , Volume 32 , Issue 7 )