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Food Microbiol

Title:		Mycofumigation of postharvest blueberries with volatile compounds from Trichoderma atroviride IC-11 is a promising tool to control rots caused by Botrytis cinerea
Author(s):		Bello F; Montironi ID; Medina MB; Munitz MS; Ferreira FV; Williman C; Vazquez D; Cariddi LN; Musumeci MA;
Address:		"Instituto Nacional de Tecnologia Agropecuaria (INTA), Estacion Experimental Agropecuaria Concordia Yuqueri, Concordia, Entre Rios, Argentina. Catedra de Farmacologia, Facultad de Agronomia y Veterinaria. Universidad Nacional de Rio Cuarto, Rio Cuarto, 5800, Cordoba, Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) - Instituto de Ciencia y Tecnologia de los Alimentos de Entre Rios (ICTAER), Monsenor Tavella 1450, (E3202 BCJ), Concordia, Entre Rios, Argentina; Facultad de Ciencias de la Alimentacion, Universidad Nacional de Entre Rios, Monsenor Tavella 1450, (E3202 BCJ), Concordia, Entre Rios, Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) - Instituto de Ciencia y Tecnologia de los Alimentos de Entre Rios (ICTAER), Monsenor Tavella 1450, (E3202 BCJ), Concordia, Entre Rios, Argentina. Facultad de Ciencias de la Alimentacion, Universidad Nacional de Entre Rios, Monsenor Tavella 1450, (E3202 BCJ), Concordia, Entre Rios, Argentina. Universidad Nacional de Rio Cuarto, Facultad de Ciencias Exactas Fisico-Quimicas y Naturales. Departamento de Microbiologia e Inmunologia. Rio Cuarto, 5800, Cordoba, Argentina; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Instituto de Biotecnologia Ambiental y Salud (INBIAS). Rio Cuarto, 5800, Cordoba, Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) - Instituto de Ciencia y Tecnologia de los Alimentos de Entre Rios (ICTAER), Monsenor Tavella 1450, (E3202 BCJ), Concordia, Entre Rios, Argentina; Facultad de Ciencias de la Alimentacion, Universidad Nacional de Entre Rios, Monsenor Tavella 1450, (E3202 BCJ), Concordia, Entre Rios, Argentina. Electronic address: matias.musumeci@uner.edu.ar"
Journal Title:		Food Microbiol
Year:		2022
Volume:		20220414
Issue:
Page Number:		104040 -
DOI:		10.1016/j.fm.2022.104040
ISSN/ISBN:		1095-9998 (Electronic) 0740-0020 (Linking)
Abstract:		"Botrytis cinerea, the causal agent of the gray mold, is a filamentous fungus that infects blueberries and can cause important production losses in postharvest storage. Considering that the use of synthetic fungicides is not allowed on blueberries in postharvest conditions, alternative and natural strategies are needed to control gray mold. The objective of this work was to evaluate the capability of volatile organic compounds (VOCs) produced by Trichoderma atroviride IC-11 to control B. cinerea growth in blueberries after harvest. These VOCs inhibited almost completely B. cinerea growth in vitro. The most abundant volatile compound was 6-pentyl-alpha-pyrone (6PP). In vitro assays with pure 6PP confirmed its antifungal activity. The incidence of gray mold was evaluated in blueberries inoculated with B. cinerea and exposed to volatiles of T. atroviride IC-11. Gray mold incidence among those stored in air at 20 degrees C for 14 days was 100%, while the incidence among the volatile-treated fruit was 17%. Gray mold incidence among those stored in air at 4 degrees C for 31 days was 82%, while the incidence among the volatile-treated fruit was 11%. T. atroviride IC-11 VOCs inhibited mycelial growth and conidia germination of B. cinerea. The binding of VOCs to the surface of hyphae caused their vacuolation and deterioration. Selective cytotoxicity of 6PP on B. cinerea was observed but not on human intestinal cells at specific concentrations that controlled gray mold. The postharvest mycofumigation of blueberries with T. atroviride IC-11 VOCs is a promising approach to protect these fruits from gray mold"
Keywords:		*Blueberry Plants/microbiology Botrytis Humans Hypocreales Plant Diseases/microbiology/prevention & control *Volatile Organic Compounds/metabolism/pharmacology 6-Pentyl-pyrone Blueberry decays Gray mold Trichoderma volatile compounds Vaccinium corymbosum;
Notes:		"MedlineBello, Fernando Montironi, Ivana Dalila Medina, Maria Belen Munitz, Martin Sebastian Ferreira, Flavia Vanina Williman, Celia Vazquez, Daniel Cariddi, Laura Noelia Musumeci, Matias Alejandro eng England 2022/06/12 Food Microbiol. 2022 Sep; 106:104040. doi: 10.1016/j.fm.2022.104040. Epub 2022 Apr 14"