Composition and Bioactivity of Essential Oil From the Leaves of Genipa americana Against the Coconut Mite Aceria guerreronis

Alex S De Jesus,Paulo Cesar De L Nogueira,Caroline R Coelho,Ighor C Barreto,Ana Veruska C Da Silva,José G Sena Filho,Adenir V Teodoro

doi:10.5539/jas.v11n18p197

Alex S De Jesus, Paulo Cesar De L Nogueira + Show 5 more

Open Access

https://doi.org/10.5539/jas.v11n18p197

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Abstract

Genipa americana L. has a diversity of secondary metabolites, including iridoids, phenolic compounds, and alkaloids. Pharmacological and biological properties have also been reported. This study has aimed to evaluate the chemical composition of the essential oil (EO) obtained from the leaves of G. americana and its bioactivity against Aceria guerreronis Keifer (Acari: Eriophyidae), a serious pest of coconut production areas worldwide. EO from the leaves was extracted and analyzed by Gas Chromatography-Mass Spectrometry and flame ionization detection (GC-MS/FID). For the bioassays, the adult coconut mites were subjected to increasing concentrations of EO. The analyses showed a predominance of sesquiterpenes, followed by monoterpenes, aldehydes, and fatty acids. The EO (LC50 = 0.41 mg mL-1; LC90 = 6.43 mg mL-1) showed toxicity and repellent effects against the coconut mite. The tested EO has the potential to develop as a natural product, with acaricidal activities against A. guerreronis, in order to assist in the control of the coconut mite.

Highlights

Genipa americana L. (Rubiaceae) is widely distributed in tropical Central and South America and it presents an economic and environmental importance (Bailão et al, 2015; Sá et al, 2015)
Aceria guerreronis Keifer (Acari: Eriophyidae) is a species considered as a serious pest of coconut production areas worldwide, including the Americas, Africa, and some Asian countries
The essential oil (EO) obtained was dried with powdered anhydrous sodium sulfate and stored at 4 °C in a sealed amber bottle before chemical analysis by gas chromatography coupled to mass spectrometry (GC/MS) and flame ionization detector (FID)

Summary

Introduction

Genipa americana L. (Rubiaceae) is widely distributed in tropical Central and South America and it presents an economic and environmental importance (Bailão et al, 2015; Sá et al, 2015). (Rubiaceae) is widely distributed in tropical Central and South America and it presents an economic and environmental importance (Bailão et al, 2015; Sá et al, 2015) It possesses value for the recovery of degraded areas, composition in permanent preservation areas, and in agroforestry systems (Bailão et al, 2015; Sá et al, 2015). Aceria guerreronis Keifer (Acari: Eriophyidae) is a species considered as a serious pest of coconut production areas worldwide, including the Americas, Africa, and some Asian countries. It occurs in high population levels in northeastern Brazil (Lawson-Balagbo et al, 2008; Souza et al, 2012). The mite causes chloroses that are triangular in shape, and as they develop, they become brown, causing superficial and longitudinal cracks of a dark brown color to fruits (Moreira & Nascimento, 2002)

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