RT Journal Article
T1 Identification of Volatile Organic Compounds in Extremophilic Bacteria and Their Effective Use in Biocontrol of Postharvest Fungal Phytopathogens
A1 Toral, Laura
A1 Rodríguez-González, Miguel Ángel
A1 Martínez-Checa, Fernando
A1 Montaño, Alfredo
A1 Cortés-Delgado, Amparo
A1 Smolinska, Agnieszka
A1 Llamas, Inmaculada
A1 Sampedro, Inmaculada
K1 Compuestos orgánicos volátiles
K1 Hongos fitopatógenos
K1 Agentes antifúngicos
K1 Control biológico
K1 Frutas - Almacenamiento - Enfermedades y daños
K1 Hortalizas - Almacenamiento - Enfermedades y daños
AB Phytopathogenic fungal growth in postharvest fruits and vegetables is responsible for20–25% of production losses. Volatile organic compounds (VOCs) have been gainingimportance in the food industry as a safe and ecofriendly alternative to pesticides forcombating these phytopathogenic fungi. In this study, we analysed the ability of someVOCs produced by strains of the genera Bacillus, Peribacillus, Pseudomonas,Psychrobacillus and Staphylococcus to inhibit the growth of Alternaria alternata, Botrytiscinerea, Fusarium oxysporum, Fusarium solani, Monilinia fructicola, Monilinia laxa andSclerotinia sclerotiorum, in vitro and in vivo. We analysed bacterial VOCs by using GC/MS and 87 volatile compounds were identified, in particular acetoin, acetic acid,2,3-butanediol, isopentanol, dimethyl disulphide and isopentyl isobutanoate. In vitro growthinhibition assays and in vivo experiments using cherry fruits showed that the best producersof VOCs, Bacillus atrophaeus L193, Bacillus velezensis XT1 and Psychrobacillus vulpisZ8, exhibited the highest antifungal activity against B. cinerea, M. fructicola and M. laxa,which highlights the potential of these strains to control postharvest diseases. Transmissionelectron microscopy micrographs of bacterial VOC-treated fungi clearly showed antifungalactivity which led to an intense degeneration of cellular components of mycelium andcell death.
PB Frontiers
YR 2021
FD 2021-11-12
LK https://hdl.handle.net/10630/40457
UL https://hdl.handle.net/10630/40457
LA eng
NO Toral L, Rodríguez M, Martínez-Checa F, Montaño A, Cortés-Delgado A, Smolinska A, Llamas I and Sampedro I (2021) Identification of Volatile Organic Compounds in Extremophilic Bacteria and Their Effective Use in Biocontrol of Postharvest Fungal Phytopathogens. Front. Microbiol. 12:773092. doi: 10.3389/fmicb.2021.773092
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026