https://scholars.lib.ntu.edu.tw/handle/123456789/377972
Title: | Larvicidal activities of wood and leaf essential oils and ethanolic extracts from Cunninghamia konishii Hayata against the dengue mosquitoes | Authors: | Cheng, S.-S. C.-Y. Lin M.-J. Chung Y.-H. Liu C.-G. Huang Chang, S.-T. SHANG-TZEN CHANG |
Keywords: | Aedes aegypti; Aedes albopictus; Cunninghamia konishii (China fir); Essential oil; Extract; Mosquito larvicidal activity | Issue Date: | 2013 | Journal Volume: | 47 | Start page/Pages: | 310-315 | Source: | Industrial Crops and Products | Abstract: | Aedes aegypti and Aedes albopictus are considered to be the main vector of a group of arboviruses responsible for dengue and yellow fever. Natural products derived from plant extracts were tested in a discovery program for effective, environment friendly mosquito control agents. Screening for mosquito larvicidal activity of plant extracts could lead to the discovery of new agents for mosquito larvae control. The mosquito larvicidal activities of the wood and leaf essential oils and ethanolic extracts from Cunninghamia konishii Hayata against A. aegypti and A. albopictus were investigated in this study. Results obtained from the mosquito larvicidal assay showed that wood and leaf essential oils possessed the activity against fourth instar larvae of A. aegypti and A. albopictus. Using gas chromatography-flame ionization detection (GC-FID) and gas chromatography-mass spectrometry (GC-MS) analyses, twenty-seven and twenty-five compounds were identified, representing 100.0% and 98.1% of the wood and leaf essential oils. The main constituents of wood essential oil were cedrol (53.03%) and α-pinene (25.57%); of leaf essential oil were α-pinene (34.89%), p-cymene (16.66%) and γ-muurolene (11.35%). Among ten pure constituents tested, β-myrcene, p-cymene, (+)-limonene and sabinene exhibited significant larvicidal activity, with LC50 values of 35.8, 69.4, 71.9 and 74.1μg/ml against A. aegypti larvae and 27.0, 68.3, 41.2 and 39.5μg/ml against A. albopictus larvae, respectively. These results clearly revealed that the essential oils from C. konishii leaf and wood and their effective constituents served as a potential, eco-friendly mosquito larvicide against the dengue mosquitoes. ? 2013. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84876732472&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/377972 |
DOI: | 10.1016/j.indcrop.2013.03.016 | SDG/Keyword: | Gas chromatography; Gas oils; Ionization of gases; Mass spectrometry; Monoterpenes; Mosquito control; Olefins; Plant extracts; Software testing; Viruses; Wood; Aedes aegypti; Aedes albopictus; Cunninghamia konishii; Extract; Mosquito larvicidal activities; Essential oils; biopesticide; coniferous tree; dengue fever; dose-response relationship; essential oil; ethanol; larva; mosquito; phytochemistry; plant extract; Chemical Analysis; Computer Programs; Cunninghamia; Extractives; Gas Chromatography; Plants; Testing; Viruses; Volatile Oil; Wood; Aedes aegypti; Aedes albopictus; Arbovirus; Cunninghamia; Cunninghamia konishii; Cunninghamia lanceolata |
Appears in Collections: | 森林環境暨資源學系 |
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