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Int. J. Mol. Sci. 2017, 18(5), 1081;

Chemical Diversity, Biological Activity, and Genetic Aspects of Three Ocotea Species from the Amazon

Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará, 66075-900 Belém, Brazil
Instituto de Estudos em Saúde e Biológicas, Universidade Federal do Sul e Sudeste do Pará, 68501-970 Marabá, Brazil
Programa de Pós-Graduação em Recursos Naturais da Amazônia, Universidade Federal do Oeste do Pará, 68035-110 Santarém, Brazil
Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL 35899, USA
Author to whom correspondence should be addressed.
Academic Editors: Vincenzo De Feo, Laura De Martino and Carmen Formisano
Received: 15 March 2017 / Revised: 18 April 2017 / Accepted: 10 May 2017 / Published: 18 May 2017
(This article belongs to the Special Issue Effective Mechanisms of Plant Bioactive Essential Fats and Oils)
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Ocotea species present economic importance and biological activities attributed to their essential oils (EOs) and extracts. For this reason, various strategies have been developed for their conservation. The chemical compositions of the essential oils and matK DNA sequences of O. caudata, O. cujumary, and O. caniculata were subjected to comparison with data from O. floribunda, O. veraguensis, and O. whitei, previously reported. The multivariate analysis of chemical composition classified the EOs into two main clusters. Group I was characterized by the presence of α-pinene (9.8–22.5%) and β-pinene (9.7–21.3%) and it includes O. caudata, O. whitei, and O. floribunda. In group II, the oils of O. cujumary and O. caniculata showed high similarity due amounts of β-caryophyllene (22.2% and 18.9%, respectively). The EO of O. veraguensis, rich in p-cymene (19.8%), showed minor similarity among all samples. The oils displayed promising antimicrobial and cytotoxic activities against Escherichia coli (minimum inhibitory concentration (MIC) < 19.5 µg·mL−1) and MCF-7 cells (median inhibitory concentration (IC50) ≅ 65.0 µg·mL−1), respectively. The analysis of matK gene displayed a good correlation with the main class of chemical compounds present in the EOs. However, the matK gene data did not show correlation with specific compounds. View Full-Text
Keywords: Lauraceae; volatile compounds; terpenes; matK gene; phylogenetic analysis Lauraceae; volatile compounds; terpenes; matK gene; phylogenetic analysis

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Da Silva, J.K.; Da Trindade, R.; Moreira, E.C.; Maia, J.G.S.; Dosoky, N.S.; Miller, R.S.; Cseke, L.J.; Setzer, W.N. Chemical Diversity, Biological Activity, and Genetic Aspects of Three Ocotea Species from the Amazon. Int. J. Mol. Sci. 2017, 18, 1081.

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