title: Effects of ingested phytoecdysteroids in the female soft tick Ornithodoros moubata.
abstract: The effects of the ingestion of some phytoecdysteroids were studied in the soft tick Ornithodoros moubata. Supernumerary moulting and malformations of first leg pairs were obtained with 22-oxo-20-hydroxy-ecdysone, 20-hydroxyecdysone-22-acetate, and 20-hydroxyecdysone-22-benzoate. Egg-yield was reduced with 20-hydroxyecdysone-22-acetate and carthamosterone. Finally, drying-out of eggs was observed with carthamosterone and 22-deoxy-20,26-dihydroxyecdysone. In addition, we demonstrated that there is a correlation between the number of completed gonotrophic cycles and the impossibility of inducing supernumerary moulting.
authors.affiliation: Zoologie et Biologie animale, Université de Genève, Switzerland.
authors.forename: V
authors.initials: V
authors.lastname: Savolainen
authors.forename: J
authors.initials: J
authors.lastname: Wuest
authors.forename: R
authors.initials: R
authors.lastname: Lafont
authors.forename: J L
authors.initials: JL
authors.lastname: Connat
mesh_terms: D000818:Animals; D026461:Ecdysteroids; D004625:Embryo, Nonmammalian / Q000187:drug effects; D005260:Female; D008855:Microscopy, Electron, Scanning; D013256:Steroids / Q000378:metabolism / Q000494:pharmacology*; D013987:Ticks / Q000187:drug effects* / Q000196:embryology / Q000648:ultrastructure
chemical_list: D026461:Ecdysteroids; D013256:Steroids