Entomologia Experimentalis et Applicata (2007) 122, 271-278

Fernando L. Cônsoli, Danielle Lewis, Larry Keeley and S. Bradleigh Vinson (2007)
Characterization of a cDNA encoding a putative chitinase from teratocytes of the endoparasitoid Toxoneuron nigriceps
Entomologia Experimentalis et Applicata 122 (3), 271-278
Abstract: Females of insect endoparasitoids inject substances along with the egg at oviposition, which can regulate or induce changes in a number of host physiological processes to benefit the developing parasitoid. These changes can be caused by substances such as venoms, calyx fluids, or symbiotic-associated virus particles (polydnavirus), which are injected by females along with their eggs, and by substances secreted by parasitoid-derived tissues (teratocytes) or the developing parasitoid larvae. Teratocytes (dissociated cells of the serosal membrane after parasitoid eclosion) release substances that have roles (i) in parasitoid nutrition, (ii) in the digestion of host tissues, and (iii) in the regulation of host development. Teratocytes of Toxoneuron nigriceps (Viereck) (Hymenoptera: Braconidae) have been implicated in the arrestment of the host development and in the regulation of circulating levels of host ecdysteroids. Here we describe the cDNA of a teratocyte-secreted chitinase and its expression during parasitoid development, and discuss its putative role in this host-parasitoid association.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Fernando L. Consoli, S. Bradleigh Vinson

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Toxoneuron bicolor (parasitoid)