ISOLATION AND CHARACTERIZATION OF A MINERAL SOLUBILIZING AZOTOBACTER SP. OBTAINED FROM SOIL SAMPLE COLLECTED FROM RANGWASA JAIVIK FARM

A. TAMHANE¹, R. CHAUHAN², A. NAGAR³, S. RATNAPARKHE⁴*
¹Indore Biotech Inputs & Research Pvt. Ltd., Gram Dehri, Khasra No. 204/3, A.B.Road, Rangwasa, RAU, Indore, Madhya Pradesh, India
²Indore Biotech Inputs & Research Pvt. Ltd., Gram Dehri, Khasra No. 204/3, A.B.Road, Rangwasa, RAU, Indore, Madhya Pradesh, India
³Indore Biotech Inputs & Research Pvt. Ltd., Gram Dehri, Khasra No. 204/3, A.B.Road, Rangwasa, RAU, Indore, Madhya Pradesh, India
⁴Indore Biotech Inputs & Research Pvt. Ltd., Gram Dehri, Khasra No. 204/3, A.B.Road, Rangwasa, RAU, Indore, Madhya Pradesh, India
* Corresponding Author : supriya.ratnaparkhe@gmail.com

Received : 04-12-2019     Accepted : 26-12-2019     Published : 30-12-2019
Volume : 11     Issue : 12       Pages : 1756 - 1759
Int J Microbiol Res 11.12 (2019):1756-1759

Keywords : Azotobacter, Nitrogen Fixing Bacteria, Phosphate solubilizing bacteria, Potassium solubilizing bacteria, Zinc solubilizing bacteria
Academic Editor : Pablo D. Ghiringhelli, Dr Ranjana Hawaldar, Dr Prabhjot Kaur Gill, Harish Chandra
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Research and Development (DSIR-Recognised Research Facility), Indore Biotech Inputs & Research Pvt. Ltd., Gram Dehri, Khasra No. 204/3, A.B.Road, Rangwasa, RAU, Indore, Madhya Pradesh, India
Author Contribution : All authors equally contributed

A bacterial strain with the ability to grow on nitrogen free media under aerobic condition was isolated from the soil collected from Rangwasa Jaivik farm which has been practicing traditional and organic farming practices for the last twenty-five years. The strain was identified as Azotobacter sp. and was found to have the ability to solubilize minerals such as phosphate, potassium and zinc. The isolate also produced Indole Acetic Acid and was found to improve germination of seeds in Fenugreek when used as bio-inoculant. The plants from the seeds inoculated with the isolated strain showed significant reduction in yellowing of the leaves.

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