alexa Antifungal and Insecticidal properties of the Phytoconstituents of Drimys winteri (Winteraceae) growing in Chiloe Island (Chile) | OMICS International | Abstract
ISSN: 2329-6836

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Research Article

Antifungal and Insecticidal properties of the Phytoconstituents of Drimys winteri (Winteraceae) growing in Chiloe Island (Chile)

Muñoz O1*, Gutierrez M2, Gonzalez R3, Hammann S4 and Vetter W4
1Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
2Laboratorio de Síntesis Orgánica, Instituto de Quimica de Recursos Naturales, Universidad de Talca, Talca, Chile
3Facultad de Ciencias Agronomicas, Universidad de Chile
4University of Hohenheim, Institute of Food Chemistry (170b), Garbenstr, 28, D-70593 Stuttgart, Germany
Corresponding Author : Orlando Muñoz
Professor, Universidad de Chile
Chemistry Las Palmeras 3425 Ñuñoa Santiago
Santiago 7800003, Chile
Tel: 56-2-92343886
Fax: 56-2-22713888
E-mail: [email protected]
Received May 28, 2015; Accepted July 07, 2015; Published July 15, 2015
Citation: Muñoz O, Gutierrez M, Gonzalez R, Hammann S, Vetter W (2015) Antifungal and Insecticidal properties of the Phytoconstituents of Drimys winteri (Winteraceae) growing in Chiloe Island (Chile). Nat Prod Chem Res 3:182. doi:10.4172/2329-6836.1000182
Copyright: © 2015 Muñoz O, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Seven drimane-type sesquiterpenes: polygodial, drimenol, drimendiol, drimenin, isodrimininol, isodrimenin and proximadiol (cryptomeridiol); three lignans: sesamin, cubebin and its epimer eudesmin, and one sterol: (β-sitosterol) were isolated from Drimys winteri (Winteraceae) from Chiloe Island, Chile. Eudesmin and its phytosterols were isolated from the plant for the first time, and sesamin was found to be the major product in the plant’s bark by a significant margin. Furthermore, qualitative and quantitative differences were detected between some products. Structures were established using 1D and 2D NMR (COSY, HSQC, and HMBC) spectra, HRESIMS and comparison with published data. Some isolated compounds were tested against the phytopathogenic fungi Botritys cinerea, Dothiorella sp., Penicillium sp. and Cladosporium cladosporoides; additionally, a study was carried out to determine the contact toxic action of leaf and stem bark extracts upon phloematic insect pests from the Pseudococcus viburni (Signoret) (Hemiptera: Pseudococcidae) mealy bug complex.

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