期刊
JOURNAL OF ASIA-PACIFIC ENTOMOLOGY
卷 18, 期 2, 页码 227-231出版社
KOREAN SOC APPLIED ENTOMOLOGY
DOI: 10.1016/j.aspen.2014.09.004
关键词
Heliopsis longipes; Alkamides; Natural insecticide; Larvicidal activity; Anopheles albimanus; Aedes aegypti
类别
资金
- CONACYT [IB 09 133309]
Heliopsis longipes has been recognized as a potential source of insecticidal compounds called alkamides, which can be used to control populations of insect vector transmitters of several diseases that affect the human health. To determine the insecticidal activity of H. longipes against Anopheles albimanus and Aedes aegypti, crude extract of H. longipes roots and affinin were obtained. Catalytic reduction of affinin was performed to obtain two reduced amides, N-isobutil-2E-decenamide and N-isobutil-decanamide. Crude extract, affinin and its reduced amides were evaluated against third instar larvae of An. albimanus and Ae. aegypti. Results show that crude extract of H. longipes possess larvicidal activity against larval stage of An. albimanus and Ae. aegypti. This effect could be attributed to affinin, on which the conjugated double bonds present in the structure of the molecule are necessary to maintain larvicidal activity. This study demonstrated the potential of H. longipes to control larval stage of An. albimanus and Ae. aegypti, transmitter vectors of malaria and dengue fever, respectively. (C) 2015 Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society. Published by Elsevier B.V. All rights reserved.
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