Inhibitory Potential of Thymus vulgaris Essential Oil against Growth, Biofilm Formation, Swarming, and Swimming in Pseudomonas syringae Isolates

As a follow-up to previous studies, the effects of Thymus vulgaris essential oil on selected virulence factors (growth, sessile cell survival, swimming, swarming, and exopolysaccharide production) were evaluated in phytopathogenic Pseudomonas syringae strains isolated from soybean fields Argentina; reference savastanoi pv. glycinea B076 aeruginosa PAO1. P. are responsible for bacterial blight, disease that affects crops worldwide. Plant bacterioses usually treated with antibiotics copper compounds, which may contribute development resistance pathogens damage environment. For these reasons, eco-friendly alternatives necessary. Although aromatic plants natural source antimicrobial substances, substances bacteria remain largely unexplored. Subinhibitory concentrations significantly reduced slope rate growth. In addition, biofilm (EPS) production inhibited, swimming swarming motility patterns being affected at all tested. Therefore, TEO could potentially be highly efficient antipseudomonal agent treating plant infections caused by syringae.