Who is the puppet master? Replication of a parasitic wasp-associated virus correlates with host behaviour manipulation

NM Dheilly, F Maure, M Ravallec… - … of the Royal …, 2015 - royalsocietypublishing.org
Many parasites modify their host behaviour to improve their own transmission and survival,
but the proximate mechanisms remain poorly understood. An original model consists of the …

[HTML][HTML] Viruses Associated with Ovarian Degeneration in Apis mellifera L. Queens

L Gauthier, M Ravallec, M Tournaire, F Cousserans… - PLOS …, 2011 - journals.plos.org
Queen fecundity is a critical issue for the health of honeybee (Apis mellifera L.) colonies, as
she is the only reproductive female in the colony and responsible for the constant renewal of …

[HTML][HTML] The cellular immune response of the pea aphid to foreign intrusion and symbiotic challenge

A Schmitz, C Anselme, M Ravallec, C Rebuf, JC Simon… - 2012 - journals.plos.org
Recent studies suggest that the pea aphid (Acyrthosiphon pisum) has low immune defenses.
However, its immune components are largely undescribed, and notably, extensive …

Infectious behavior in a parasitoid

J Varaldi, P Fouillet, M Ravallec, M López-Ferber… - Science, 2003 - science.org
Solitary parasitoid insects usually lay only one egg per host and reject already parasitized
hosts, because only one offspring can successfully develop (1). Despite the constraints, …

[HTML][HTML] The baculovirus/insect cell system as an alternative to Xenopus oocytes: First characterization of the AKT1 K+ channel from Arabidopsis thaliana

…, C Horeau, G Lemaillet, S Urbach, M Ravallec… - Journal of Biological …, 1996 - ASBMB
Two plant (Arabidopsis thaliana) K + transport systems, KAT1 and AKT1, have been expressed
in insect cells (Sf9 cell line) using recombinant baculoviruses. Microscopic observation …

Recurrent DNA virus domestication leading to different parasite virulence strategies

…, A Bézier, S Urbach, JM Aury, V Jouan, M Ravallec… - Science …, 2015 - science.org
Relics of ancient infections are abundant in eukaryote genomes, but little is known about how
they evolve when they confer a functional benefit on their host. We show here, for the first …

Venom gland extract is not required for successful parasitism in the polydnavirus-associated endoparasitoid Hyposoter didymator (Hym. Ichneumonidae) despite the …

…, S Urbach, V Jouan, F Cousserans, M Ravallec… - Insect biochemistry and …, 2013 - Elsevier
The venom gland is a conserved organ in Hymenoptera that shows adaptations associated
with life-style diversification. Few studies have investigated venom components and function …

Intracellular distribution of viral gene products regulates a complex mechanism of cauliflower mosaic virus acquisition by its aphid vector

…, E Hébrard, M Uzest, M Ravallec… - Proceedings of the …, 2002 - National Acad Sciences
Interactions between Cauliflower mosaic virus (CaMV) and its aphid vector are regulated by
the viral protein P2, which binds to the aphid stylets, and protein P3, which bridges P2 and …

[HTML][HTML] Gene expression profiling of Spodoptera frugiperda hemocytes and fat body using cDNA microarray reveals polydnavirus-associated variations in …

…, FX Jousset, L Sofer, E Deleury, J Rocher, M Ravallec… - BMC genomics, 2006 - Springer
Background Genomic approaches provide unique opportunities to study interactions of insects
with their pathogens. We developed a cDNA microarray to analyze the gene transcription …

[HTML][HTML] Venom Atypical Extracellular Vesicles as Interspecies Vehicles of Virulence Factors Involved in Host Specificity: The Case of a Drosophila Parasitoid Wasp

B Wan, E Goguet, M Ravallec, O Pierre… - Frontiers in …, 2019 - frontiersin.org
Endoparasitoid wasps, which lay eggs inside the bodies of other insects, use various strategies
to protect their offspring from the host immune response. The hymenopteran species of …