Acta Entomologica Sinica (2007) 50, 662-666

Wei-Di Li, Min Shi and Xue-Xin Chen (2007)
[Effects of parasitism by Diadromus collaris (Hymenoptera: Ichneumonidae) on morphology and ultrastructure of fat body and adipocytes of host Plutella xylostella (Lepidoptera: Plutellidae) pupae]
Acta Entomologica Sinica 50 (7), 662-666
Abstract: In order to determine the effects of parasitism by Diadromus collaris (Hymenoptera: Ichneumonidae) on structure of fat body of host Plutella xylostella (Lepidoptera: Plutellidae) pupae, the morphology and ultrastructure of pupal fat body and adipocytes of the diamondback moth, P. xylostella parasitized by D. collaris were observed using light and electron microscopy. After 72 h of parasitism, the structure of fat body became loose; the adipocytes were dissociated from fat body; the membrane of adipocyte was torn, its entocyte was consumed passively, the number of apparatus of cell reduced, and the morphology of nuclear chromatin was changed. It is so concluded that parasitism by parasitoid can make host fat body and adipocytes fell to pieces, and this is advantageous for development of parasitoid.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)
Database assignments for author(s): Xue-Xin Chen

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Plutella xylostella
Diadromus collaris (parasitoid)	Plutella xylostella