Effects of ricinoleic acid esters from castor oil of Ricinus communis on the vitellogenesis of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) ticks.
This study examines the effects of ricinoleic acid esters from Ricinus communis castor oil on the vitellogenesis of Rhipicephalus sanguineus ticks attached to hosts that were fed with commercial rabbit food containing these esters. The oocytes of ticks from the treatment group (TG) showed cytoplasmic changes that inhibited the development of oocytes I and II to the advanced stages (IV and V) in addition to preventing the maturation of oocytes V, resulting in small ones. In addition, sperm was not observed in ampoules. Our findings confirm the acaricide potential of ricinoleic acid esters.
Departamento de Biologia, Instituto de Biociências, UNESP, Av 24 A, n° 1515, Cx Postal 199, CEP 13506-900 Rio Claro, SP, Brazil.
André
A
Arnosti
Paula Desjardins
PD
Brienza
Karim Christina Scopinho
KC
Furquim
Gilberto Orivaldo
GO
Chierice
Gervásio Henrique
GH
Bechara
Izabela Braggião
IB
Calligaris
Maria Izabel
MI
Camargo-Mathias
D000821:Animal Feed; D000818:Animals; D002368:Castor Oil / Q000737:chemistry; D004952:Esters; D005260:Female; D009865:Oocytes / Q000187:drug effects* / Q000378:metabolism; D010053:Ovary / Q000166:cytology / Q000187:drug effects; D011817:Rabbits; D048508:Rhipicephalus sanguineus / Q000187:drug effects* / Q000502:physiology; D012277:Ricinoleic Acids / Q000008:administration & dosage / Q000494:pharmacology*; D012278:Ricinus / Q000737:chemistry*; D014818:Vitellogenesis / Q000187:drug effects*
D004952:Esters; D012277:Ricinoleic Acids; D002368:Castor Oil; C030521:ricinoleic acid