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Molecules 2015, 20(5), 8033-8047; doi:10.3390/molecules20058033

Chemical Characterization and Anti-Oomycete Activity of Laureliopsis philippianna Essential Oils against Saprolegnia parasitica and S. australis

1
Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Avda. Leopoldo Carvallo 270, Playa Ancha, Valparaíso 2340000, Chile
2
Instituto de Microbiología Clínica, Facultad de Medicina, Universidad Austral de Chile, Los Laureles s/n, Isla Teja, Valdivia 5090000, Chile
3
Escuela de Tecnología Médica, Facultad de Medicina, Universidad Mayor, Av. Alemania 0281, Temuco 4780000, Chile
4
Centro de Investigaciones Biomédicas (CIB), Escuela de Medicina, Universidad de Valparaíso, Av. Hontaneda N° 2664, Valparaíso 2340000, Chile
5
Departamento de Ciencias Básicas, Campus Fernando May, Universidad del Bío-Bío, Avda. Andrés Bello s/n casilla 447, Chillán 3780000, Chile
6
Facultad de Farmacia, Escuela de Química y Farmacia, Universidad de Valparaíso, Av. Gran Bretaña N° 1093, Valparaíso 2340000, Chile
7
Escuela de Obstetricia y Puericultura, Facultad de Medicina, Universidad de Valparaíso, Blanco N° 1911, Valparaíso 2340000, Chile
*
Authors to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 13 April 2015 / Revised: 29 April 2015 / Accepted: 30 April 2015 / Published: 5 May 2015
(This article belongs to the Section Natural Products)
View Full-Text   |   Download PDF [715 KB, uploaded 5 May 2015]

Abstract

Laureliopsis philippiana (Looser) R. Schodde (Monimiaceae) is a native tree widespread in the forest areas in the south of Chile and Argentina, known for its medicinal properties and excellent wood. The aim of this study was to evaluate the chemical composition of L. philippiana leaf and bark essential oils (EOs) using gas chromatography-mass spectrometry (GC-MS), and to quantify its anti-oomycete activity, specifically against Saprolegnia parasitica and S. australis. Only six components were identified in leaf EO, 96.92% of which are phenylpropanoids and 3.08% are terpenes. As for bark EO, 29 components were identified, representing 67.61% for phenylpropanoids and 32.39% for terpenes. Leaf EO was characterized mainly by safrole (96.92%) and β-phellandrene (1.80%). Bark EO was characterized mainly by isosafrole (30.07%), safrole (24.41%), eucalyptol (13.89%), methyleugenol (7.12%), and eugenol (6.01%). Bark EO has the most promising anti-Saprolegnia activity, with a minimum inhibition concentration (MIC) value of 30.0 µg/mL against mycelia growth and a minimum fungicidal concentration (MFC) value of 50.0 μg/mL against spores; for leaf EO, the MIC and MFC values are 100 and 125 µg/mL, respectively. These findings demonstrate that bark EO has potential to be developed as a remedy for the control of Saprolegnia spp. in aquaculture. View Full-Text
Keywords: Laureliopsis philippianna; essential oil; Saprolegnia; anti-oomycete Laureliopsis philippianna; essential oil; Saprolegnia; anti-oomycete
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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MDPI and ACS Style

Madrid, A.; Godoy, P.; González, S.; Zaror, L.; Moller, A.; Werner, E.; Cuellar, M.; Villena, J.; Montenegro, I. Chemical Characterization and Anti-Oomycete Activity of Laureliopsis philippianna Essential Oils against Saprolegnia parasitica and S. australis. Molecules 2015, 20, 8033-8047.

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