Chemical composition and larvicidal activity of essential oils extracted from brazilian legal Amazon plants against Aedes aegypti L. (Diptera: culicidae)
Autor(es): Dias, Clarice Noleto; Alves, Luciana Patricia Lima; Rodrigues, Klinger Antonio da Franca; Brito, Maria Cristiane Aranha; Rosa, Carliane dos Santos; Amaral, Flavia Maria Mendonca do; Monteiro, Odair dos Santos; Andrade, Eloisa Helena de Aguiar; Maia, Jose Guilherme Soares; Moraes, Denise Fernandes Coutinho
Resumo: The mosquito Aedes aegypti L. (Diptera: Culicidae) is the major vector of dengue and chikungunya fever. The lack of effective therapies and vaccines for these diseases highlights the need for alternative strategies to control the spread of virus. Therefore, this study investigated the larvicidal potential of essential oils from common plant species obtained from the Chapada das Mesas National Park, Brazil, against third instar A. aegypti larvae. The chemical composition of these oils was determined by gas chromatography coupled to mass spectrometry. The essential oils of Eugenia piauhiensis Vellaff., Myrcia erythroxylon O. Berg, Psidium myrsinites DC., and Siparuna camporum (Tul.) A. DC. were observed to be mainly composed of sesquiterpene hydrocarbons. The essential oil of Lippia gracilis Schauer was composed of oxygenated monoterpenes. Four of the five tested oils were effective against the A. aegypti larvae, with the lethal concentration (LC sub(50) ) ranging from 230 to 292 mg/L after 24 h of exposure. Overall, this work demonstrated the possibility of developing larvicidal products against A. aegypti by using essential oils from the flora of the Brazilian Legal Amazon. This in turn demonstrates the potential of using natural resources for the control of disease vectors.
Palavras-Chave: Chemical composition; Disease control; Pest control; Aquatic insects; Disease transmission; Public health; Vectors; Mass spectroscopy; Dengue; Monoterpenes; Essential oils; Vaccines; Plant extracts; Aedes aegypti; Culicidae; Diptera
Imprenta: Evidence-Based Complementary and Alternative Medicine, v. 2015, 2015.
Descritores: Aedes aegypti - Virus ; Aedes aegypti - Transmission ; Aedes aegypti - Vaccine ; Aedes aegypti - Chikungunya Fever ; Aedes aegypti - Dengue ; Aedes aegypti - Public health
Data de publicação: 2015
