Evaluation of the Antagonistic Effect of Pseudomonas Rhizobacteria on Fusarium Wilt of Chickpea

This study aimed to isolate rhizobacteria belonging the genus Pseudomonas with plant-growth-promoting properties that can be used in control of chickpea wilt disease caused by Fusarium oxysporum f. sp. ciceris (Foc). The production antifungal compounds isolated was assessed against two Foc isolates, coded Foc-S1 and Foc-S2. Strains E1FP13, E1FP4, E1PP7 were most effective Foc-S1, percentages 52.77%, 48.37%, 47.97%, respectively, while E1PP6, E1PP15 Foc-S2 52.20%, 52.09%, 45.38%, respectively. All five isolates identified as species using 16S rRNA sequencing. microscopic examination impact strains on revealed all morphological changes Foc, such granulation condensation cytoplasm, fragmentation, deformation hyphae. produced several compounds, cellulase, hydrogen cyanide, indole acetic acid, ammonia, siderophores, lipase, protease, solubilized phosphate. They also able significantly increase growth reduce disease, E1FP13 resulting highest reductions 55.77% (Foc-S1) 53.33% (Foc-S2). results our make promising biocontrol agents for controlling disease.