In Vitro Antifungal Activity and Toxicity of Dihydrocarvone-Hybrid Derivatives against <i>Monilinia fructicola</i>

The aim of this study was to synthesize a series of novel and known dihydrocarvone-hybrid derivatives (<b>2</b>–<b>9</b>) and to evaluate mycelial growth activity of hybrid molecules against two strains of <i>Monilinia fructicola</i>, as well as their toxicity. Di...

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Main Authors: Katy Díaz, Enrique Werner, Ximena Besoain, Susana Flores, Viviana Donoso, Bastian Said, Nelson Caro, Ernesto Vega, Iván Montenegro, Alejandro Madrid
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Antibiotics
Subjects:
Online Access:https://www.mdpi.com/2079-6382/10/7/818
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author Katy Díaz
Enrique Werner
Ximena Besoain
Susana Flores
Viviana Donoso
Bastian Said
Nelson Caro
Ernesto Vega
Iván Montenegro
Alejandro Madrid
author_facet Katy Díaz
Enrique Werner
Ximena Besoain
Susana Flores
Viviana Donoso
Bastian Said
Nelson Caro
Ernesto Vega
Iván Montenegro
Alejandro Madrid
author_sort Katy Díaz
collection DOAJ
description The aim of this study was to synthesize a series of novel and known dihydrocarvone-hybrid derivatives (<b>2</b>–<b>9</b>) and to evaluate mycelial growth activity of hybrid molecules against two strains of <i>Monilinia fructicola</i>, as well as their toxicity. Dihydrocarvone-hybrid derivatives have been synthesized under sonication conditions and characterized by FTIR, NMR, and HRMS. Antifungal efficacy against both strains of <i>M. fructicola</i> was determined by half maximal effective concentration (EC<sub>50</sub>) and toxicity using the brine shrimp lethality test (BSLT). Among the synthesized compounds, <b>7</b> and <b>8</b> showed the best activity against both strains of <i>M. fructicola</i> with EC<sub>50</sub> values of 148.1 and 145.9 µg/mL for strain 1 and 18.1 and 15.7 µg/mL for strain 2, respectively, compared to BC 1000<sup>®</sup> (commercial organic fungicide) but lower than Mystic<sup>®</sup> 520 SC. However, these compounds showed low toxicity values, 910 and 890 µg/mL, respectively, compared to Mystic<sup>®</sup> 520 SC, which was highly toxic. Based on the results, these hybrid compounds could be considered for the development of more active, less toxic, and environmentally friendly antifungal agents against phytopathogenic fungi.
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spelling doaj.art-bfc3b1c426f543d3828bc58f21c5de1e2023-11-22T03:03:40ZengMDPI AGAntibiotics2079-63822021-07-0110781810.3390/antibiotics10070818In Vitro Antifungal Activity and Toxicity of Dihydrocarvone-Hybrid Derivatives against <i>Monilinia fructicola</i>Katy Díaz0Enrique Werner1Ximena Besoain2Susana Flores3Viviana Donoso4Bastian Said5Nelson Caro6Ernesto Vega7Iván Montenegro8Alejandro Madrid9Departamento de Química, Universidad Técnica Federico Santa María, Av. España N° 1680, Valparaíso 2340000, ChileDepartamento de Ciencias Básicas, Campus Fernando May, Universidad del Bío-Bío, Avda. Andrés Bello 720, Casilla 447, Chillán 3780000, ChileEscuela de Agronomía, Pontificia Universidad Católica de Valparaíso, San Francisco s/n La Palma, Quillota 2260000, ChileLaboratorio de Productos Naturales y Síntesis Orgánica (LPNSO), Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Avda. Leopoldo Carvallo 270, Playa Ancha, Valparaíso 2340000, ChileLaboratorio de Productos Naturales y Síntesis Orgánica (LPNSO), Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Avda. Leopoldo Carvallo 270, Playa Ancha, Valparaíso 2340000, ChileDepartamento de Química, Universidad Técnica Federico Santa María, Av. Santa María 6400, Santiago 7630000, ChileCentro de Investigación Australbiotech, Universidad Santo Tomás, Avda. Ejército 146, Santiago 8320000, ChileDepartamento Laboratorios y Estaciones Cuarentenarias, Servicio Agrícola y Ganadero, Ruta 68 # (Km. 12), Pudahuel 9020000, ChileEscuela de Obstetricia y Puericultura, Facultad de Medicina, Universidad de Valparaíso, Angamos 655, Reñaca 2520000, ChileLaboratorio de Productos Naturales y Síntesis Orgánica (LPNSO), Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Avda. Leopoldo Carvallo 270, Playa Ancha, Valparaíso 2340000, ChileThe aim of this study was to synthesize a series of novel and known dihydrocarvone-hybrid derivatives (<b>2</b>–<b>9</b>) and to evaluate mycelial growth activity of hybrid molecules against two strains of <i>Monilinia fructicola</i>, as well as their toxicity. Dihydrocarvone-hybrid derivatives have been synthesized under sonication conditions and characterized by FTIR, NMR, and HRMS. Antifungal efficacy against both strains of <i>M. fructicola</i> was determined by half maximal effective concentration (EC<sub>50</sub>) and toxicity using the brine shrimp lethality test (BSLT). Among the synthesized compounds, <b>7</b> and <b>8</b> showed the best activity against both strains of <i>M. fructicola</i> with EC<sub>50</sub> values of 148.1 and 145.9 µg/mL for strain 1 and 18.1 and 15.7 µg/mL for strain 2, respectively, compared to BC 1000<sup>®</sup> (commercial organic fungicide) but lower than Mystic<sup>®</sup> 520 SC. However, these compounds showed low toxicity values, 910 and 890 µg/mL, respectively, compared to Mystic<sup>®</sup> 520 SC, which was highly toxic. Based on the results, these hybrid compounds could be considered for the development of more active, less toxic, and environmentally friendly antifungal agents against phytopathogenic fungi.https://www.mdpi.com/2079-6382/10/7/818dihydrocarvone<i>Monilinia fructicola</i>hybrid compounds
spellingShingle Katy Díaz
Enrique Werner
Ximena Besoain
Susana Flores
Viviana Donoso
Bastian Said
Nelson Caro
Ernesto Vega
Iván Montenegro
Alejandro Madrid
In Vitro Antifungal Activity and Toxicity of Dihydrocarvone-Hybrid Derivatives against <i>Monilinia fructicola</i>
Antibiotics
dihydrocarvone
<i>Monilinia fructicola</i>
hybrid compounds
title In Vitro Antifungal Activity and Toxicity of Dihydrocarvone-Hybrid Derivatives against <i>Monilinia fructicola</i>
title_full In Vitro Antifungal Activity and Toxicity of Dihydrocarvone-Hybrid Derivatives against <i>Monilinia fructicola</i>
title_fullStr In Vitro Antifungal Activity and Toxicity of Dihydrocarvone-Hybrid Derivatives against <i>Monilinia fructicola</i>
title_full_unstemmed In Vitro Antifungal Activity and Toxicity of Dihydrocarvone-Hybrid Derivatives against <i>Monilinia fructicola</i>
title_short In Vitro Antifungal Activity and Toxicity of Dihydrocarvone-Hybrid Derivatives against <i>Monilinia fructicola</i>
title_sort in vitro antifungal activity and toxicity of dihydrocarvone hybrid derivatives against i monilinia fructicola i
topic dihydrocarvone
<i>Monilinia fructicola</i>
hybrid compounds
url https://www.mdpi.com/2079-6382/10/7/818
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