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Article

Potential Application of Propolis Extracts to Control the Growth of Stemphylium vesicarium in “Rocha” Pear

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DCTB/MEtRICs, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
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Instituto Nacional de Investigação Agrária e Veterinária (INIAV) Oeiras, 2780-157 Portugal
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Instituto Nacional de Investigação Agrária e Veterinária (INIAV), Estação Nacional de Fruticultura de Vieira Natividade, 2460-059 Alcobaça, Portugal
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CBIOS/DREAMS/Universidade Lusófona, Campo Grande, 376, 1749-024 Lisboa, Portugal
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University of Lisboa, Faculty of Sciences, BioISI–Biosystems & Integrative Sciences Institute Campo Grande, C8 bdg, 1749-016 Lisboa, Portugal
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2020, 10(6), 1990; https://doi.org/10.3390/app10061990
Received: 14 February 2020 / Revised: 9 March 2020 / Accepted: 9 March 2020 / Published: 14 March 2020
(This article belongs to the Special Issue Natural Antimicrobial Preservatives)
Stemphylium vesicarium (Wallr.) E. G. Simmons is the pathogen responsible of brown spot disease in pear and has become one of the main concerns for European pear producers. In Portugal, S. vesicarium is responsible for significant yield reduction and economic losses in “Rocha” pear (Pyrus communis L. cv Rocha) production. Considering the antimicrobial potential of propolis, the high incidence of brown spot in pears and the emergence of fungicides resistance in S. vesicarium, this study aimed to evaluate the potential of Portuguese propolis as an alternative strategy to control brown spot disease in “Rocha” pear. In vitro assays showed that propolis extracts were able to inhibit up to 90% the S. vesicarium mycelial growth. In vivo assays in artificially wounded and inoculated “Rocha” pears showed that, compared to the control, the disease incidence decreased up to 25% and the lesions diameter up to 57%, in fruits treated with propolis. Moreover, propolis seems to be more efficient in reducing the disease incidence when applied after pathogen inoculation (curative assay) than when applied before pathogen inoculation (prophylactic assay). Thus, the results suggest that propolis extracts have potential to be applied as part of an integrated approach for the control of brown spot of pear. View Full-Text
Keywords: Portuguese propolis; brown spot disease; pear fungal disease; biological control; antifungal activity Portuguese propolis; brown spot disease; pear fungal disease; biological control; antifungal activity
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MDPI and ACS Style

Loebler, M.; Sánchez, C.; Muchagato Maurício, E.; Diogo, E.; Santos, M.; Vasilenko, P.; Cruz, A.S.; Mendes, B.; Gonçalves, M.; Duarte, M.P. Potential Application of Propolis Extracts to Control the Growth of Stemphylium vesicarium in “Rocha” Pear. Appl. Sci. 2020, 10, 1990. https://doi.org/10.3390/app10061990

AMA Style

Loebler M, Sánchez C, Muchagato Maurício E, Diogo E, Santos M, Vasilenko P, Cruz AS, Mendes B, Gonçalves M, Duarte MP. Potential Application of Propolis Extracts to Control the Growth of Stemphylium vesicarium in “Rocha” Pear. Applied Sciences. 2020; 10(6):1990. https://doi.org/10.3390/app10061990

Chicago/Turabian Style

Loebler, Marcella, Claudia Sánchez, Elisabete Muchagato Maurício, Eugénio Diogo, Mário Santos, Paula Vasilenko, Ana S. Cruz, Benilde Mendes, Margarida Gonçalves, and Maria P. Duarte 2020. "Potential Application of Propolis Extracts to Control the Growth of Stemphylium vesicarium in “Rocha” Pear" Applied Sciences 10, no. 6: 1990. https://doi.org/10.3390/app10061990

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