Journal
ANNUAL REVIEW OF ENTOMOLOGY
Volume 54, Issue -, Pages 189-207Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev.ento.54.110807.090556
Keywords
wasp; worm; brain; neurons; amines
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Parasites often alter the behavior of their hosts in ways that are ultimately beneficial to the parasite or its offspring. Although the alteration of host behavior by parasites is a widespread phenomenon, the underlying neuronal mechanisms are only beginning to be understood. Here, we focus on recent advances in the study of behavioral manipulation via modulation of the host central nervous system. We elaborate on a few case studies, in which recently published data provide explanations for the neuronal basis of parasite-induced alteration of host behavior. Among these, we describe how a worm may influence the nervous system of its cricket host and manipulate the cricket into committing suicide by jumping into water. We then focus oil Ampulex compressa, which uses an Alien-like strategy for the sake of its offspring. Unlike most venomous hunters, this wasp injects venom directly into specific cerebral regions of its cockroach prey. As a result Of the sting, the cockroach remains alive but immobile, but not paralyzed, and serves to nourish the developing wasp larva.
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