Marques Márcia M M, Morais Selene M, Vieira Icaro G P, Vieira Mariano G S, Raquel Ana, Silva A, De Almeida Raimundo Rafael, Guedes Maria Izabel F
Laboratory of Natural Products Chemistry, Ceará State University, Campus do Itaperi, Avenida Parajana 1700, CEP 60740-000, Fortaleza, Ceará, Brazil.
J Am Mosq Control Assoc. 2011 Jun;27(2):156-8. doi: 10.2987/10-6056.1.
The aim of this study was to evaluate the activity of essential oil from Tagetes erecta against 3rd instars of Aedes aegypti and to determine the amounts of larvicidal thiophenes in all plant tissues. The oil obtained by steam distillation and analyzed by gas chromatography/mass spectrometry showed 14 compounds. The main compounds were piperitone (45.72%), D-limonene (9.67%), and piperitenone (5.89%). The essential oil was active against larvae of Ae. aegypti, with LC50 of 79.78 microg/ml and LC90 of 100.84 microg/ml. The larvicidal thiophene contents were higher in the roots and flowers as demonstrated by high-performance liquid chromatography analysis. Thus, T. erecta constitutes a good source of varied compounds showing larvicidal activity against Ae. aegypti.
本研究的目的是评估万寿菊精油对埃及伊蚊三龄幼虫的活性，并测定所有植物组织中杀幼虫噻吩的含量。通过水蒸气蒸馏获得的精油经气相色谱/质谱分析显示有14种化合物。主要化合物为哌啶酮（45.72%）、D-柠檬烯（9.67%）和哌啶酮（5.89%）。该精油对埃及伊蚊幼虫有活性，LC50为79.78微克/毫升，LC90为100.84微克/毫升。高效液相色谱分析表明，根和花中的杀幼虫噻吩含量较高。因此，万寿菊是多种对埃及伊蚊具有杀幼虫活性化合物的良好来源。
