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Hyaluronidase activity in Saliva of European Culicoides (Diptera: Ceratopogonidae)

Rádrová J., Vlková M., Volfová V., Sumová P., Cetre-Sossah C., Carpenter S., Darpel K., Rakotoarivony I., Allene X., Votypka J., Volf P.. 2016. Journal of Medical Entomology, 53 (1) : p. 212-216.

Biting midges of the genus Culicoides transmit pathogens of veterinary importance such as bluetongue virus (Reoviridae: Orbivirus). The saliva of Culicoides is known to contain bioactive molecules including peptides and proteins with vasodilatory and immunomodulative properties. In this study, we detected activity of enzyme hyaluronidase in six Culicoides species that commonly occur in Europe and that are putative vectors of arboviruses. Hyaluronidase was present in all species studied, although its molecular size, sensitivity to SDS, and substrate specificity differed between species. Further studies on the potential effect of hyaluronidase activity on the vector competence of Culicoides species for arboviruses would be beneficial. (Résumé d'auteur)

Mots-clés : phlebotomus; culex quinquefasciatus; culicoides nubeculosus; orbivirus; vecteur de maladie; hydrolase; enzyme; identification; activité enzymatique; salive; culicoides; réunion; tchéquie; france; europe; phlebotomus duboscqi; culicoides newsteadi; culicoides punctatus; culicoides imicola; culicoides pulicaris; culicoides obseletus; hyaluronidase

Thématique : Organismes nuisibles des animaux; Maladies des animaux

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