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Effects of Ricinus communis oil esters on salivary glands of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) |
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| Authors: | Arnosti André Brienza Paula Desjardins Furquim Karim Christina Scopinho Chierice Gilberto Orivaldo Neto Salvador Claro Bechara Gervásio Henrique Sampieri Bruno Rodrigues Camargo-Mathias Maria Izabel |
| Affiliation: | aDepartamento de Biologia, Instituto de Biociências, UNESP, Av. 24 A, n° 1515, Cx. Postal 199, CEP 13506-900, Rio Claro, SP, Brazil;bDepartamento de Química e Física Molecular, Instituto de Química de São Carlos, USP, Av. Trabalhador São Carlense, 400 PQ. Arnold Schmidt, CEP 13566-590, São Carlos, SP, Brazil;cDepartamento de Patologia Veterinária, FCAV, UNESP, Via de Acesso Prof. Paulo Castellane, s/n, CEP 14884-900, Jaboticabal, SP, Brazil |
| Abstract: | This study showed the interference of esters extracted from Ricinus communis in the secretory cycle of salivary glands of Rhipicephalus sanguineus ticks, which consequently caused collateral effects on their feeding process. Ticks attached on hosts which were fed with commercial feed containing different concentrations of R. communis oil esters suffered damages such as cytoplasmic changes in their salivary glands, notably in the acinar cells, impairing the functioning of the acini and accelerating the organs degeneration as a whole. It was found that esters interfered with the activity of cellular secretion by changing the glycoprotein of salivar composition especially in acini II cells. It was also shown that the damages caused by esters in the salivary glands cells of these ectoparasites increased in higher concentrations of the product and degenerative glandular changes were more pronounced. |
| Keywords: | Ricinus communis Rhipicephalus sanguineus Salivary gland Esters Glandular secretion Tick control |
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