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Jaqueline CMB, Eder APES, Tarcísio CADB, Ilsamar MS, Sergio DA, Rodrigo RF, Raimundo WDSA. Chemical composition, oviposition deterrent and larvicidal activities of the wood extracts of Tabebuia avellanedae from the Cerrado of Brazil. ACTA ACUST UNITED AC 2018. [DOI: 10.5897/jmpr2018.6650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Fujiwara GM, Annies V, de Oliveira CF, Lara RA, Gabriel MM, Betim FCM, Nadal JM, Farago PV, Dias JFG, Miguel OG, Miguel MD, Marques FA, Zanin SMW. Evaluation of larvicidal activity and ecotoxicity of linalool, methyl cinnamate and methyl cinnamate/linalool in combination against Aedes aegypti. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 139:238-244. [PMID: 28152405 DOI: 10.1016/j.ecoenv.2017.01.046] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 01/24/2017] [Accepted: 01/25/2017] [Indexed: 06/06/2023]
Abstract
The frequent use of synthetic pesticides to control Aedes aegypti population can lead to environmental and/or human contamination and the emergence of resistant insects. Linalool and methyl cinnamate are presented as an alternative to the synthetic pesticides, since they can exhibit larvicidal, repellent and/or insecticidal activity and are considered safe for use. The aim of this study was to evaluate the larvicidal activity of methyl cinnamate, linalool and methyl cinnamate/linalool in combination (MC-L) (1:4 ratio, respectively) against Aedes aegypti. The in vitro preliminary toxicity through brine shrimp lethality assay and hemolytic activity, and the phytotoxic potential were also investigated to assess the safety of their use as larvicide. Methyl cinnamate showed significant larvicidal activity when compared to linalool (LC50 values of 35.4µg/mL and 275.2µg/mL, respectively) and to MC-L (LC50 138.0µg/mL). Larvae morphological changes subjected to the specified treatments were observed, as the flooding of tracheal system and midgut damage, hindering the larval development and survival. Preliminary in vitro toxicity through brine shrimp showed the high bioactivity of the substances (methyl cinnamate LC50 35.5µg/mL; linalool LC50 96.1µg/mL) and the mixture (MC-L LC50 57.7µg/mL). The results showed that, despite the higher larvicidal activity of methyl cinnamate, the use of MC-L as a larvicide seems to be more appropriate due to its significant larvicidal activity and low toxicity.
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Affiliation(s)
- Gislene M Fujiwara
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, 80210-170 Curitiba, PR, Brazil.
| | - Vinícius Annies
- Department of Chemistry, Federal University of Paraná, 81531-990 Curitiba, PR, Brazil
| | - Camila F de Oliveira
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, 80210-170 Curitiba, PR, Brazil
| | - Ricardo A Lara
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, 80210-170 Curitiba, PR, Brazil
| | - Maria M Gabriel
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, 80210-170 Curitiba, PR, Brazil
| | - Fernando C M Betim
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, 80210-170 Curitiba, PR, Brazil
| | - Jéssica M Nadal
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmaceutical Sciences, State University of Ponta Grossa, 84030-900 Ponta Grossa, PR, Brazil
| | - Paulo V Farago
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmaceutical Sciences, State University of Ponta Grossa, 84030-900 Ponta Grossa, PR, Brazil
| | - Josiane F G Dias
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, 80210-170 Curitiba, PR, Brazil
| | - Obdulio G Miguel
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, 80210-170 Curitiba, PR, Brazil
| | - Marilis D Miguel
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, 80210-170 Curitiba, PR, Brazil
| | - Francisco A Marques
- Department of Chemistry, Federal University of Paraná, 81531-990 Curitiba, PR, Brazil
| | - Sandra M W Zanin
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, 80210-170 Curitiba, PR, Brazil
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