Action of andiroba oil and permethrin on the central nervous and reproductive systems of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) ticks females. A confocal study

Author(s)

Roma, Gislaine Cristina ^[1] ; Ramalho Vendramini, Maria Claudia ^[1] ; Camargo-Mathias, Maria Izabel ^[1] ; Nunes, Pablo Henrique ^[1] ; de Faria, Adriano Uemura ^[1] ; Bechara, Gervasio Henrique ^[1]

Affiliation

^[1] UNESP Univ Estadual Paulista, BR-13506900 Rio Claro, SP - Brazil

• Document type: Journal article
• Source: Research in Veterinary Science; v. 95, n. 2, p. 529-536, OCT 2013.
• Web of Science Citations: 10

Abstract

Research for acaricides with lower toxicity and impact on the environment has been intensified. An alternative would be the use of natural compounds or of synthetic products in lower concentrations than the ones sold commercially. Thus, this study describes the action of andiroba seed oil on the nuclei of the ovary and synganglion cells of Rhipicephalus sanguineus, and presents an analysis of the nuclear morphology of the nervous system cells of this tick species when exposed to permethrin. The results obtained showed that, although no changes have been observed in the genetic material of the ovary cells exposed to the andiroba oil, this compound, as well as permethrin, has neurotoxic action on the females of this species. The damages caused to the physiology of the synganglion, due to the loss of integrity of the genetic material, would result in the impairment of the metabolism of other systems of R. sanguineus ticks. (c) 2013 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 11/06865-8 - Morphophysiology comparative study of the nervous system of larvae, nymphs and adults of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) and cell evaluation of synganglia from semi-engorged females exposed to permethrin and to andiroba oil
• Grantee: Gislaine Cristina Roma
• Support Opportunities: Scholarships in Brazil - Young Researchers