Vol. 5, Issue 6 (2017)
Study of production of indole acetic acid by soil and plant bacterial isolates on different media
Author(s): Diksha Vishwakarma, JK Thakur and SC Gupta
Abstract: PGPR have been reported to produce different phytohormones like auxins, gibberellins and cytokinins. IAA (indole-3-acetic acid) is the group of phytohormones and is considered the most important native auxin. Present study was carried out for quantitative estimation of IAA production ability of selected soil and plant isolates on nutrient agar broth. Isolates positive for P solubilization and those positive for K solubilization/mobilization were also evaluated on respective P and K solubilization media. Result showed, On nutrient agar media, the highest IAA production was recorded with D3 (p<0.05; 13.5 µg/ml broth) which was statistically at par with OS21 (12.94 µg/ml broth), MER4 (12.75 µg/ml broth) and D19 (12.335 µg/ml broth). On P solubilization media i.e. Pikovskaya broth out of 10 isolates, the highest IAA production was obtained with SEN3 (12.7 µg/ml broth). MER4 produced the highest amount of IAA (24.22 µg/ml broth) compared to others on Potassium solubilization media (Aleksandrov media).Out of 4 endophytic bacterial isolate from corn root, the highest IAA production was recorded with MER4 (p<0.05; 12.7 µg/ml broth).
Pages: 639-641 | 672 Views 12 Downloads
How to cite this article:
Diksha Vishwakarma, JK Thakur, SC Gupta. Study of production of indole acetic acid by soil and plant bacterial isolates on different media. Int J Chem Stud 2017;5(6):639-641.