Staphylococcus aureus pathogenicity on Arabidopsis thaliana is mediated either by a direct effect of salicylic acid on the pathogen or by SA-dependent, NPR1-independent host responses.

Abstract excerpt

Staphylococcus aureus is a ubiquitous gram-positive bacterium that can cause superficial to serious systemic infections in animals and humans. Here we report the development of a plant infection model to study the pathogenesis of this bacterium. Three global regulatory mutants, RN6911 (agr-), ALC 488 (sarA-) ALC 842 (sarA-/agr-) and an alpha-toxin mutant defective in biofilm formation (DU1090) which are...

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