tThe growing interest in Leptoglossus occidentalis, the conifer seed bug pest accidentally introduced intoEurope in the 1990s, led us to investigate the female reproductive structures of the hymenopteran platy-gastrid Gryon pennsylvanicum, which is its candidate antagonist for biological control programmes. Ourstudy revealed a genital apparatus with some characteristic features, such as an unusual length of theoviduct (divided into a long proximal and a short distal tract), the absence of accessory glands and thepresence of a spermatheca provided with a small spermathecal gland. The ultrastructural investigationrevealed that the shorter part of the common oviduct is involved in ion uptake whereas the longer parthas two cell types with secretory function: the former with dense bodies and the latter with granularparticles. The secretory contents of both are released into the oviduct lumen. The granular particles are formed in a complex of modified endoplasmic reticulum and appear as virus-like particles.
|Autori:||Paoli, F.;Gottardo, M.;Marchini, D.;Dallai, R.;Roversi, P.F.|
|Data di pubblicazione:||2014|
|Titolo:||Ultrastructure of the female reproductive apparatus of the eggparasitoid Gryon pennsylvanicum (Ashmead) (Hymenoptera,Platygastridae)|
|Appare nelle tipologie:||1.1 Articolo in rivista|