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首页> 外文OA文献 >Artemisia absinthium-borne compounds as novel larvicides: effectiveness against six mosquito vectors and acute toxicity on non-target aquatic organisms
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Artemisia absinthium-borne compounds as novel larvicides: effectiveness against six mosquito vectors and acute toxicity on non-target aquatic organisms

机译：作为新的杀幼虫剂的蒿蒿b化合物：对抗六种蚊媒的功效以及对非目标水生生物的急性毒性

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The eco-friendly control of mosquito vectors is a crucial challenge of public health importance. Here we evaluated the larvicidal potential of Artemisia absinthium essential oil (EO) and its three major chemical constituents against six mosquito vectors: Anopheles stephensi, Anopheles subpictus, Aedes aegypti, Aedes albopictus, Culex quinquefasciatus, and Culex tritaeniorhynchus. The EO was obtained by leaf hydro-distillation. Its chemical composition was analyzed using gas chromatography-mass spectrometry. Major components were (E)-β-farnesene (31.6 %), (Z)-en-yn-dicycloether (11.12 %), and (Z)-β-ocimene (27.8 %). The EO was toxic effect against larval populations of An. stephensi, An. subpictus, Ae. aegypti, Ae. albopictus, Cx. quinquefasciatus, and Cx. tritaeniorhynchus, with LC50 values of 41.85, 52.02, 46.33, 57.57, 50.57, and 62.16 μg/ml. (E)-β-farnesene, (Z)-en-yn-dicycloether, and (Z)-β-ocimene were highly effective on An. stephensi (LC50 = 8.13, 16.24 and 25.84 μg/ml) followed by An. subpictus (LC50 = 10.18, 20.99, and 30.86 μg/ml), Ae. aegypti (LC50 = 8.83,17.66, and 28.35 μg/ml), Ae. albopictus (LC50 = 11.38,23.47, and 33.72 μg/ml), Cx. quinquefasciatus (LC50 = 9.66, 19.76, and 31.52 μg/ml), and Cx. tritaeniorhynchus (LC50 = 12.51,25.88, and 37.13 μg/ml). Notably, the EO and its major compounds were safer to the non-target organisms Chironomous circumdatus, Anisops bouvieri and Gambusia affinis, with LC50 values ranging from 207.22 to 4385 μg/ml. Overall, our results highlight that (E)-β-farnesene, (Z)-en-yn-dicycloether, and (Z)-β-ocimene from the A. absinthium EO represent promising eco-friendly larvicides against six key mosquito vectors with moderate toxicity against non-target organisms.
机译：蚊媒的生态控制是对公共卫生重要性的重大挑战。在这里，我们针对6种蚊媒评估了苦艾蒿油（AE）及其三种主要化学成分的杀幼虫潜力：按蚊，按蚊，亚白纹伊蚊，埃及伊蚊，白纹伊蚊，库克西昆奎法西斯和库蚊。 EO通过叶水蒸馏获得。使用气相色谱-质谱法分析其化学组成。主要成分是（E）-β-法尼烯（31.6％），（Z）-en-yn-二环醚（11.12％）和（Z）-β-烯丙二烯（27.8％）。 EO对An的幼虫有毒作用。史蒂芬斯，安。亚庇，Ae。 Aegypti，Ae。 Cx。albopictus。 quinquefasciatus和Cx。 Tritaeniorhynchus，LC50值为41.85、52.02、46.33、57.57、50.57和62.16μg/ ml。 （E）-β-法尼烯，（Z）-en-yn-二环醚和（Z）-β-烯丙烯对An具有很高的效果。斯蒂芬斯（LC50 = 8.13、16.24和25.84μg/ ml），然后加An。亚种（LC50 = 10.18、20.99和30.86μg/ ml），Ae。 aegypti（LC50 = 8.83、17.66和28.35μg/ ml），Ae。白蛋白（LC50 = 11.38、23.47和33.72μg/ ml），Cx。 quinquefasciatus（LC50 = 9.66、19.76和31.52μg/ ml）和Cx。 Tritaeniorhynchus（LC50 = 12.51、25.88和37.13μg/ ml）。值得注意的是，EO和其主要化合物对非靶标生物圆环犬，鲍氏Anisops bouvieri和Gambusia affinis更为安全，LC50值为207.22至4385μg/ ml。总体而言，我们的结果表明，来自苦艾草（EO）的（E）-β-法尼烯，（Z）-en-yn-二环醚和（Z）-β-ocimene代表了针对六个主要灭蚊媒介的有前途的生态友好型幼虫。对非目标生物有中等毒性。

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