Plant Growth Promotion and Suppression of Root Disease Complex due to Meloidogyne incognita and Fusarium oxysporum by Fluorescent Pseudomonads in Tomato

Abstract

While screening for nematicidal activity of bacterial origins, various pseudomonads strains were inhabited in tomato rhizosphere. One isolate designated as was selected for studies on nematicidal properties and plant growth-promoting (PGP) activity and was identified as Pseudomonas aeruginosa based on morphological features, biochemical and physiological tests, and carbohydrate utilization. To investigate nematicidal activity, Meloidogyne incognita juvenile mortality was determined using culture filtrate. Inhibition of strain against Fusarium oxysporum was observed using dual culture technique. Strain showed good siderophore activity, HCN and IAA production abilities, and growth and development enhancement of tomato.