National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Banded leaf and sheath blight disease causes major yield loss of maize. Bio control agents control the disease without any harmful effect. Pseudomonas fluorescence is a potential bio control agent due to production lytic enzymes and various secondary metabolites such as DAPG, Phenazine, pyoluteorin, pyrollnitrin. In dual plate assay P. fluorescens AS15 culture and it supernatant inhibit the growth of Rhizoctonia solani with 35.5% and 86.6% percent inhibition respectively. The λ max for DAPG was detected in all carbon and nitrogen sources except tween 20 and Pyoluteorin λ max was also detected in all carbon and nitrogen sources except arabinose and tween 20. Whereas λ max for pyrrolnitrin was detected in the presence of serine, arginine, L-phenylalanine, threonine, arabinose, ducitol, sucrose, glucose and galactose. The best sources for the growth of P. fluorescens AS15 were sucrose and glucose. Good percent inhibition of P. fluorescens AS15 against Rhizoctonia solani was observed in the presence of inulin, dulcitol, glucose, galactose, serine and sucrose. In present study we conclude that glucose is the best carbon source for the growth, production of antibiotic and antagonistic behaviour of P. fluorescens AS15.
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