PHENOTYPICALLY AND GENETICALLY VARIATION OF Rif r MUTANTS STRAINS OF PSEUDOMONAS FLUORESCENCE pf2T2 AND pf2m1Abstract
The present study was Rifampicin-resistant (Rif r) mutants of Pseudomonas fluorescens pf2T2 and pf2m1 were isolated from different localities of onion plant rhizosphere soil in an around the Tamil Nadu. However, the mutants of P. fluorescens were of two general categories. Group 1 showed fast growing in terms of growth rate, competitive fitness, and membrane protein composition. Group 2 showed a slower growth rate in both minimal and enriched media and an altered membrane protein profile. These mutants also demonstrated decreased competitive fitness compared with the wild-type strain based on the study of colony morphology, soil characters, different temperature, pH, NaCl (salt tolerant), and gram staining has been done. Although, the Rifampicin – resistant (Rif r) mutants of Pseudomonas fluorescens pf2T2 and pf2m1 were distinctly in the media.
V. Priyadarshini, Sonamilli, S. Shruthipooja and N. Hariram*
Department of Biotechnology, Kalasalingam University, Krishnankoil, Tamil Nadu, India.
20 April, 2017
30 July, 2017
02 August, 2017
01 January, 2018