The efficient activity of plant essential oils for inhibiting Botrytis cinerea and Penicillium expansum: Mechanistic insights into antifungal activity

Primer Autor
Fincheira, Paola
Co-autores
Jofre, Ignacio
Espinoza, Javier
Levio-Raiman, Marcela
Tortella, Gonzalo
Oliveira, Halley Caixeta
Diez, Maria Cristina
Quiroz, Andres
Rubilar, Olga
Título
The efficient activity of plant essential oils for inhibiting Botrytis cinerea and Penicillium expansum: Mechanistic insights into antifungal activity
Editorial
ELSEVIER GMBH
Revista
MICROBIOLOGICAL RESEARCH
Lenguaje
en
Resumen
Botrytis cinerea and Penicillium expansum produce deterioration in fruit quality, causing losses to the food industry. Thus, plant essential oils (EOs) have been proposed as a sustainable alternative for minimizing the application of synthetic fungicides due to their broad-spectrum antifungal properties. This study investigated the efficacy of five EOs in suppressing the growth of B. cinerea and P. expansum and their potential antifungal mechanisms. EOs of Mentha x piperita L., Origanum vulgare L., Thymus vulgaris L., Eucalyptus globules Labill., and Lavandula angustifolia Mill., were screened for both fungi. The results showed that the EO of T. vulgaris and O. vulgare were the most efficient in inhibiting the growth of B. cinerea and P. expansum. The concentration increase of all EO tested increased fungi growth inhibition. Exposure of fungi to EOs of T. vulgaris and O. vulgare increased the pH and the release of constituents absorbing 260 nm and soluble proteins, reflecting membrane permeability alterations. Fluorescence microscopic examination revealed that tested EOs produce structural alteration in cell wall component deposition, decreasing the hypha width. Moreover, propidium iodide and Calcein-AM stains evidenced the loss of membrane integrity and reduced cell viability of fungi treated with EOs. Fungi treated with EOs decreased the mitochondria activity and the respiratory process. Therefore, these EOs are effective antifungal agents against B. cinerea and P. expansum, which is attributed to changes in the cell wall structure, the breakdown of the cell membrane, and the alteration of the mitochondrial activity.
Fecha Publicación
2023
Tipo de Recurso
artículo original
doi
10.1016/j.micres.2023.127486
Formato Recurso
PDF
Palabras Claves
Plant essential oil
Fungal pathogen inhibition
Mitochondria activity
Cell membrane fluidity
Ubicación del archivo
Categoría OCDE
Microbiología
Materias
Aceite esencial de plantas
Inhibición de patógenos fúngicos
Actividad mitocondrial
Fluidez de la membrana celular
Identificador del recurso (Mandatado-único)
artículo original
Versión del recurso (Recomendado-único)
versión publicada
License
CC BY-NC-ND 4.0
Condición de la licencia (Recomendado-repetible)
CC BY-NC-ND 4.0
Derechos de acceso
acceso abierto
Access Rights
acceso abierto
Id de Web of Science
WOS:001081318000001
ISSN
0944-5013
Tipo de ruta
Verde# dorado
Categoría WOS
Microbiología
Referencia del Financiador (Mandatado si es aplicable-repetible)
ANID-FONDECYT 11220070
ANID-FONDAP 15130015
ANID FOVI220003
ANID InES19-FRO19001
ANID FONDECYT 11220070
ANID FONDAP 15130015
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