Toxicity of solvents and surfactants to Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) and Dermacentor nitens (Neumann, 1897) (Acari: Ixodidae) larvae
| Autor: | Márcia Cristina de Azevedo Prata, Ralph Maturano, Jane Daisy de Sousa Almada Resende, Erik Daemon, André Flávio Soares Ferreira Rodrigues, Caio Márcio de Oliveira Monteiro |
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| Rok vydání: | 2012 |
| Předmět: |
Veterinary medicine
Ixodidae Immunology Polysorbates Xylenes Amblyomma cajennense Acetone Surface-Active Agents chemistry.chemical_compound parasitic diseases Botany Animals Dimethyl Sulfoxide Acari Horses Dermacentor Larva Ethanol biology Dimethyl sulfoxide Methanol fungi General Medicine biology.organism_classification Infectious Diseases chemistry Distilled water Toxicity Solvents Arachnid Vectors Parasitology Brazil |
| Zdroj: | Experimental Parasitology. 131:139-142 |
| ISSN: | 0014-4894 |
| DOI: | 10.1016/j.exppara.2012.03.002 |
| Popis: | The objective of this work was to verify the sensitivity of Amblyomma cajennense and Dermacentor nitens larvae to the solvents ethanol, methanol, acetone, xylol and dimethyl sulfoxide (DMSO) and the surfactant Tween 80. The first four solvents were tested at analytical purity while the DMSO and surfactant Tween 80 were tested at a concentration of 1%. The substances tested at analytical purity that caused high mortality were also tested at concentrations of 50%, 25% and 1%. The larval packet test was used, with 10 repetitions for each treatment. A control group was also formed with the same number of repetitions, in which the larvae were only exposed to distilled water. In the first experiment, only xylol was highly toxic at the concentrations tested, causing mortality above 90% for larvae of both species. In the second experiment, xylol at 1% and at 25% showed low toxicity to the A. cajennense and D. nitens larvae, respectively, since the percentage mortality was statistically similar to that of the control group (p > 0.05). |
| Databáze: | OpenAIRE |
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