Action of permethrin on Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) semi-engorged females: morpho-physiological evaluation of salivary glands
| Autor: | Maria Izabel Camargo-Mathias, Gervásio Henrique Bechara, Gislaine Cristina Roma, Elen Fernanda Nodari, Karim Christina Scopinho Furquim |
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| Rok vydání: | 2011 |
| Předmět: |
medicine.medical_specialty
Rhipicephalus sanguineus Physiology Microbiology Salivary Glands chemistry.chemical_compound Internal medicine parasitic diseases medicine Rhipicephalus Animals Acari Tick Control Acaricides Permethrin Pyrethroid biology Salivary gland Acaricide biology.organism_classification Infectious Diseases Endocrinology medicine.anatomical_structure chemistry Insect Science Parasitology Female Ixodidae medicine.drug |
| Zdroj: | Ticks and tick-borne diseases. 3(4) |
| ISSN: | 1877-9603 |
| Popis: | Currently the most effective method of tick control is the use of acaricides, among which stands out permethrin (active ingredient of acaricide Advantage(®) Max3, Bayer), a neurotoxic pyrethroid. However, assessments of their effects on other tick systems such as glandular are still scarce. Thus, this study provides information, through histochemical techniques, about the toxic effect of this pyrethroid on the morphophysiology of salivary glands of semi-engorged Rhipicephalus sanguineus females exposed to different concentrations of permethrin (206, 1031, and 2062 ppm). The results showed that permethrin caused significant changes in the salivary gland metabolism accelerating the process of glandular degeneration, an event which would occur naturally and with great intensity only in the final engorgement stage. Furthermore, this study pointed out that permethrin reduces the salivary gland secretion ability through a drastic reduction of proteins, lipids, and polysaccharides in acinar cells. These changes impair the females to finalize the feeding process, what indirectly affects the reproductive process. |
| Databáze: | OpenAIRE |
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