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Virus Research
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Virus Research
Article . 2011
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Virus Research
Article . 2011 . Peer-reviewed
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VLPs of Leptopilina boulardi share biogenesis and overall stellate morphology with VLPs of the heterotoma clade

Authors: Gwenaelle, Gueguen; Roma, Rajwani; Indira, Paddibhatla; Jorge, Morales; Shubha, Govind;

VLPs of Leptopilina boulardi share biogenesis and overall stellate morphology with VLPs of the heterotoma clade

Abstract

Viruses and virus-like particles (VLPs) of insect parasitoids modify host-parasite interactions. The Drosophila wasp, Leptopilina heterotoma, produce 300 nm spiked VLPs that bind to the host's blood cells via surface projections. L. heterotoma is a generalist wasp that attacks over a dozen Drosophila species. Oviposition introduces VLPs into the hemolymph of Drosophila larvae. VLPs lyse hemocytes and obliterate immune signaling in infected larval hosts. L. boulardi, a member of a distinct Leptopilina clade, is a specialist, whose host range is limited to the melanogaster group. As a step toward understanding a potential relationship between venom contents and host range in these wasps, we used electron microscopy to characterize VLPs from the virulent L. boulardi-17 (Lb-17) strain. While the Lb-17 VLPs can neither lyse blood cells nor suppress host defense, their biogenesis is surprisingly similar to that of L. heterotoma. Like L. heterotoma VLPs, L. boulardi VLPs are stellate; but they have fewer spikes, each spike being significantly longer than the spikes in L. heterotoma VLPs. The Lb-17 VLPs possess a dimple, making them clearly distinct from L. heterotoma VLPs. We discuss the significance of these cross-clade differences in VLP morphologies in relation to their biological activities and the host range of the wasp.

Related Organizations
Keywords

Heteroptera, Microscopy, Electron, Virosomes, Animals, Drosophila, Hymenoptera, Phylogeny

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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
30
Top 10%
Top 10%
Top 10%
gold