细叶拟荆芥精油及其主要成分对微小扇头蜱（牛蜱属）的杀蜱活性。
Acaricidal activity of Lippia gracilis essential oil and its major constituents on the tick Rhipicephalus (Boophilus) microplus.
作者信息
Cruz Elizangela Mércia de Oliveira, Costa Livio Martins, Pinto Jessika Andreza Oliveira, Santos Darlisson de Alexandria, de Araujo Sandra Alves, Arrigoni-Blank Maria de Fátima, Bacci Leandro, Alves Péricles Barreto, Cavalcanti Sócrates Cabral de Holanda, Blank Arie Fitzgerald
机构信息
Agronomy Department, Federal University of Sergipe, Av. Marechal Rondon S/N, CEP 49100-000, São Cristóvão, SE, Brazil.
出版信息
Vet Parasitol. 2013 Jul 1;195(1-2):198-202. doi: 10.1016/j.vetpar.2012.12.046. Epub 2013 Jan 4.
The present study aimed to evaluate the activity of Lippia gracilis Schauer essential oil obtained from different L. gracilis genotypes and their major components, carvacrol and thymol against Rhipicephalus (Boophilus) microplus (cattle tick) larvae and engorged females. The larval test was performed parallel to the adult immersion test for engorged females for four L. gracilis genotypes. Similar tests were further performed for their major compounds carvacrol and thymol. Carvacrol (LC50 of 0.22 and 4.46 mg/mL, to larvae and engorged females, respectively) was more efficient than thymol (LC50 of 3.86 and 5.50 mg/mL, to larvae and engorged females, respectively). The lethal concentrations obtained for the isolated essential oil from genotypes LGRA-201 against larvae (1.31 mg/mL) and LGRA-106 against engorged females (4.66 mg/mL) confirmed the acaricidal activity of L. gracilis essential oil and its effectiveness in controlling the southern cattle tick.
本研究旨在评估从不同细叶拟唇鱼基因型中获得的细叶拟唇鱼精油及其主要成分香芹酚和百里酚对微小牛蜱（牛蜱）幼虫和饱血雌蜱的活性。对四种细叶拟唇鱼基因型进行了幼虫试验，并与饱血雌蜱的成虫浸泡试验同时进行。对其主要化合物香芹酚和百里酚进一步进行了类似试验。香芹酚（对幼虫和饱血雌蜱的LC50分别为0.22和4.46 mg/mL）比百里酚（对幼虫和饱血雌蜱的LC50分别为3.86和5.50 mg/mL）更有效。从LGRA - 201基因型中分离出的精油对幼虫的致死浓度（1.31 mg/mL）和从LGRA - 106基因型中分离出的精油对饱血雌蜱的致死浓度（4.66 mg/mL）证实了细叶拟唇鱼精油的杀螨活性及其在控制南方牛蜱方面的有效性。
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