crop improvement are well recognized, the major threat is the development of new pathogenic races invading the host crops, especially tomato, and thus causing incessant loss. Hence, the main purposes of this study were (i) to isolate PGPRs from native rhizosphere soils and characterize them for their beneficial traits, (ii) to check for their potential to induce protection against early blight disease of tomato caused by A. solani under both in vitro and in vivo conditions with the ultimate aim to increase tomato crop health and fruit weight and (iii) to examine whether the improved protection of tomato plants against A. solani con-ferred by PGPRs is correlated with the PGPR-induced biosynthesis of antioxidant enzymes.