期刊
NATURAL PRODUCT RESEARCH
卷 30, 期 6, 页码 710-714出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2015.1038999
关键词
essential oils; fumigant toxicity; contact toxicity; Tribolium castaneum; acetylcholinesterase; adenosine triphosphatases
Essential oils from 20 Egyptian plants were obtained by using hydrodistillation. The chemical composition of the isolated oils was identified by gas chromatograph/mass spectrometer. Fumigant and contact toxicities of the essential oils were evaluated against the adults of Tribolium castaneum. In fumigation assays, the oil of Origanum vulgare (LC50=9.97mg/L air) displayed the highest toxicity towards the adults of T. castaneum. In contact assays, the oils of Artemisia monosperma (LC50=0.07mg/cm(2)) and O. vulgare (LC50=0.07mg/cm(2)) were the most potent toxicants against the adults of T. castaneum. Biochemical studies showed that the tested oils caused pronounced inhibition of acetylcholinesterase (AChE) and adenosine triphosphatases (ATPases) isolated from the larvae of T. castaneum. The oil Cupressus macrocarpa (IC50=12.3mg/L) was the most potent inhibitor of AChE, while the oil of Calistemon viminals (IC50=4.4mg/L) was the most potent inhibitor of ATPases.
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