Essential Oils from the Leaves and Flowers of Callistemon viminalis: Chemical Characterization and Evaluation of the Insecticide and Antifungal Activities - American Journal of Plant Sciences

AJPS > Vol.8 No.10, September 2017

Essential Oils from the Leaves and Flowers of Callistemon viminalis: Chemical Characterization and Evaluation of the Insecticide and Antifungal Activities ()

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Download as PDF (Size: 1003KB) PP. 2516-2529

DOI: 10.4236/ajps.2017.810171 1,467 Downloads 3,289 Views Citations

Author(s)

Thais Aparecida Sales¹, Maria Das Graças Cardoso^1*, Luiz Gustavo De Lima Guimarães², Karen Caroline Camargo¹, Danúbia.A.C.S Rezende¹, Rafaela Magalhães Brandão¹, Rafaela Vieira Souza¹, Vanúzia.R.F. Ferreira¹, Ana Ermelinda Marques¹, Maísa Lamounier Magalhães³, David Lee Nelson⁴

Affiliation(s)

¹Department of Chemistry, Federal University of Lavras, Lavras, Brazil.
²Department of Natural Science, Federal University of São João Del Rei, São João Del Rei, Brazil.
³Department of Food Science, Federal University of Lavras, Lavras, Brazil.
⁴Pro-Reitoria de Pesquisa e Pós-Graduação, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Brazil.

ABSTRACT

The chemical compositions of the essential oils from the leaves and flowers of Callistemon viminalis and their insecticide and fungitoxic activities were determined. The essential oil was extracted by the hydrodistillation method using a modified Clevenger apparatus. The chemical characterization was performed by GC-MS and GC-FID. The evaluation of the insecticidal activity was performed with the Myzus persicae aphid, and the antifungal potential was determined via the inhibition of the mycelial growth of Alternaria alternata, Fusarium oxysorum and Botrytis cinérea phytopathogenic fungi. The principal components of the essential oils from the leaves and flowers were eucalyptol (84.60% and 61.47%), α-pinene (10.28% and 21.48%) and α-terpineol (2.59% and 2.79%), respectively. The use of a 0.5% concentration of the essential oil from the flowers influenced the preference of aphids and their reproduction. The number of adult aphids decreased within a period of 48 hours in the presence of the essential oil from the leaves. In the test with no chance of choice, the mean number of adults decreased with both oils within 48 hours. No inhibition of the mycelial growth of the A. alternate microorganism was observed in any of the treatments with the two essential oils. However, the growth of F. oxysporum and B. cinerea fungi was inhibited. The mycelial growth of F. oxysporum was inhibited with the concentration of 100 μL·Lˉ¹ of the oil from the flowers and 250 μL·Lˉ¹ of the oil from the leaves. The inhibition of the growth of B. cinerea was observed at concentrations of 500 and 100 μL·Lˉ¹ for the oils from the flowers and leaves, respectively. The essential oils presented insecticidal and antifungal potentials. However, further studies are needed for these oils to be used in integrated pest management.

KEYWORDS

Myzus persicae, Biological Activity, Phytopathogenic Fungi, Natural Products

Share and Cite:

Sales, T. , Cardoso, M. , Guimarães, L. , Camargo, K. , Rezende, D. , Brandão, R. , Souza, R. , Ferreira, V. , Marques, A. , Magalhães, M. and Nelson, D. (2017) Essential Oils from the Leaves and Flowers of Callistemon viminalis: Chemical Characterization and Evaluation of the Insecticide and Antifungal Activities. American Journal of Plant Sciences, 8, 2516-2529. doi: 10.4236/ajps.2017.810171.

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