Résumé
Au cours de 7 passages du virus de la polyèdrose nucléaire deAutographa californica Speyer surSpodoptera littoralis (Boisd.) par la méthode d'ingestion libre des polyèdres il n'a pas été possible d'adapter ce virus à son nouvel hôte. Par contre les passages successifs du virus étranger permettent au virus occulte du nouvel hôte de se révéler, transformant ainsi la maladie latente en une infection caractérisée.
Summary
Adaptation of theAutographa californica Speyer nuclear polyhedrosis virus (Baculovirus) by successive passages of orally fed inclusion bodies, in a new host (Spodoptera littoralis) (Boisd) was unsuccessful. It is demonstrated, by using biochemical identification methods as well as specificity difference indices, that the occult virus ofS. littoralis is stressed by the artificial infection of theA. californica nuclear polyhedrosis virus. Thus it seems that NPV's are more stable than sometimes is suggested as far as natural routes of infection are used in the experimentation.
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Maleki-Milani, H. Influence de passages répétés du virus de la polyèdrose nucléaire deAutographa californica chezSpodoptera littoralis [Lep.: Noctuidae] . Entomophaga 23, 217–224 (1978). https://doi.org/10.1007/BF02373096
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DOI: https://doi.org/10.1007/BF02373096