Acaricidal Activity of Petroleum Ether Extract of Leaves of Tetrastigma leucostaphylum (Dennst.) Alston against Rhipicephalus (Boophilus) annulatus
| Autor: | Suresh Narayanan Nair, N. D. Chithra, K. P. Sreelekha, Sanis Juliet, P. E. Deepa, Reghu Ravindran, K.G. Ajith Kumar, T. P. Ajeesh Krishna, T. P. Adarsh Krishna, Srikanta Ghosh, U. Darsana |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
food.ingredient
Article Subject lcsh:Medicine Biology Tick Vitaceae lcsh:Technology General Biochemistry Genetics and Molecular Biology Toxicology chemistry.chemical_compound food Alkanes Rhipicephalus Animals Petroleum ether lcsh:Science Acaricides General Environmental Science Traditional medicine Hatching Acaricide lcsh:T Plant Extracts Coconut oil lcsh:R General Medicine Fecundity biology.organism_classification chemistry Tetrastigma leucostaphylum lcsh:Q Female Research Article |
| Zdroj: | The Scientific World Journal The Scientific World Journal, Vol 2014 (2014) |
| ISSN: | 1537-744X 2356-6140 |
| Popis: | The acaricidal activity of the petroleum ether extract of leaves ofTetrastigma leucostaphylum(Dennst.) Alston (family: Vitaceae) againstRhipicephalus (Boophilus) annulatuswas assessed using adult immersion test (AIT). The per cent of adult mortality, inhibition of fecundity, and blocking of hatching of eggs were studied at different concentrations. The extract at 10% concentration showed 88.96% inhibition of fecundity, 58.32% of adult tick mortality, and 50% inhibition of hatching. Peak mortality rate was observed after day 5 of treatment. Mortality of engorged female ticks, inhibition of fecundity, and hatching of eggs were concentration dependent. The LC50value of the extract againstR. (B.) annulatuswas 10.46%. The HPTLC profiling of the petroleum ether extract revealed the presence of at least seven polyvalent components. In the petroleum ether extract, nicotine was identified as one of the components up to a concentration of 5.4%. However, nicotine did not reveal any acaricidal activity up to 20000 ppm (2%). Coconut oil, used as diluent for dissolving the extract, did not reveal any acaricidal effects. The results are indicative of the involvement of synergistic or additive action of the bioactive components in the tick mortality and inhibition of the oviposition. |
| Databáze: | OpenAIRE |
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