Reis Suelen L, Mantello Anieli G, Macedo Jeferson M, Gelfuso Erica A, da Silva Cássio P, Fachin Ana L, Cardoso Alexandre M, Beleboni Rene O
Unidade de Biotecnologia, Universidade de Ribeirão Preto, Ribeirão Preto, São Paulo 14096-900, Brazil.
Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP), Barretos, São Paulo 14781-502, Brazil.
Molecules. 2016 Feb 23;21(3):258. doi: 10.3390/molecules21030258.
Five monoterpenes naturally occurring in essential oils were tested for their insecticidal and repellent activities against the bruchid beetle Callosobruchus maculatus and the maize weevil Sitophilus zeamais. The monoterpenes were highly efficient as inducers of mortality or repellency against both insect species. They were more efficient in their fumigant activity against C. maculatus than against S. zeamais, while this profile of action was inverted when considering the repellent activities. Eugenol was one the most effective fumigants against both insects and one the most effective repellent against C. maculatus, while citronellal and geranial were one the most effective repellents against S. zeamais. Functional and positional isomerism of the monoterpenes pairs appears to exert little or no influence on theirs effects, especially in case of repellency. The validation of the insecticidal/repellent efficacy of isolated monoterpenes may permit a more advantageous, rapid, economic and optimized approach to the identification of promising oils for commercial formulations when combined with ethnobotanical strategies.
对天然存在于香精油中的5种单萜类化合物进行了测试，考察它们对绿豆象和玉米象的杀虫及驱避活性。这些单萜类化合物作为两种昆虫的致死诱导剂或驱避剂效率很高。它们对绿豆象的熏蒸活性比对玉米象更有效，而在考虑驱避活性时，这种作用模式则相反。丁香酚是对两种昆虫最有效的熏蒸剂之一，也是对绿豆象最有效的驱避剂之一，而香茅醛和香叶醛是对玉米象最有效的驱避剂之一。单萜类化合物对的官能团和位置异构似乎对它们的效果影响很小或没有影响，尤其是在驱避方面。当与民族植物学策略相结合时，对分离出的单萜类化合物的杀虫/驱避功效进行验证，可能会为确定用于商业配方的有前景的油提供一种更有利、快速、经济且优化的方法。
