Abstract:
Twenty isolates of Pseudomonas sp., were tested for the control of soilborne root-infecting fungi like Macrophomina phaseolina, Fusarium solaniand Rhizoctonia solani under laboratory and greenhouse conditions. In dual culture plate assay, strain 78 inhibited all the test fungi. Other Pseudomonas sp., failed to check the radial growth of M. phaseolina whereas isolates 51 and 82 significantly inhibited radial growth of F. solani and R. solani. Three isolates of Pseudomonas sp., (51, 78 and 82) when used as seed dressing or as soil drench showed substantial reduction in root-rot infection caused by M. phaseolina, F. solani and R. solani in mungbean. Strain 78 was found to be most effective in the control of root-infecting fungi. Of the root-infecting fungi, R. solani was most susceptible to Pseudomonas sp.
Nasima Imam Ali, Imran Ali Siddiqui, M. Javed and Maqsood Ali Ansari, 2001. Variations Between Strains of Pseudomonas Bacterium I: Effects on Root-Infecting Fungi. Pakistan Journal of Biological Sciences, 4: 17-19.