| Issue |
Ann. Parasitol. Hum. Comp.
Volume 50, Number 6, 1975
|
|
|---|---|---|
| Page(s) | 655 - 668 | |
| DOI | https://doi.org/10.1051/parasite/1975506655 | |
| Published online | 11 October 2017 | |
Mémoire
Rôle des spores et des cristaux de Bacillus thuringiensis Berliner dans l’infection de Laspeyresia pomonella L. (Tortricidae) (*)
The role of spores and crystals of Bacillus thuringiensis Berliner in the infection of Laspeyresia pomonella L. (Tortricidae)
Laboratoire de Zoologie générale, Université de Paris-Sud, F 91405 Orsay, France.
L’emploi par ingestion de préparations purifiées de cristaux de Bacillus thuringiensis a permis d’établir la sensibilité de Laspeyresia pomonella à la toxine cristal. L’action des spores seules est faible et ne peut être traduite par une relation dose-effet. Spores et cristaux montrent une activité plus élevée lorsqu’ils sont associés.
Abstract
Susceptibility of Laspeyresia pomonella to the crystal toxin of Bacillus thuringiensis is demonstrated by forced and free ingestion of purified preparations. The effect of spores alone is weak and cannot be expressed by a relationship between dose and mortality. Crystals and spores exhibit better activity when they are associated.
© Masson, Paris 1975, transferred to Société Française de Parasitologie
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