Volatile organic compounds profile synthesized and released by endophytes of tomato (Solanum lycopersici L.) and their antagonistic role

The endophytic microbiome uses mechanisms such as the secretion of diffusible antibiotic molecules, synthesis and release volatile organic compounds, and/or toxins to protect plants. aim this research was study compounds (VOCs) profile well secondary metabolites produced released by bacteria isolated from tomato plants that in in-vitro assays prevented growth pathogenic fungi. Bacteria belonging seven genera (Acinetobacter, Arthrobacter, Bacillus, Microbacterium, Pantoea, Pseudomonas, Stenotrophomonas) were different tissues with without symptoms Gray leaf spot, a disease provoked Stemphylium lycopersici. In vitro, antagonistic performed effect soluble on fungi determined. VOCs synthesized endophytes extracted, identified quantified. These isolates representatives bacterial inhibited three fungal pathogens S. lycopersici, Alternaria alternata Corynespora cassiicola, which related VOCs. Endophytes synthesize VOCs, probably due type interaction each bacterium establishes fungus, presenting range inhibition.