Bioprospecting of phosphorus solubilizing bacteria from Renuka Lake Ecosystems, Lesser Himalayas

Abstract

In the present study, diversity and plant growth promoting traits of bacteria isolated from Renuka Lake, Himachal Pradesh was investigated. A total of three samples, including sediment (pH-7.3), sub-surface water (pH-8.1), and surface water (pH-8.2), were collected. A total of 65 bacterial isolates were obtained on different growth media. Among 65 isolates 18 isolates were found to be solubilizers of phosphorus. The maximum amount of phosphorus was solubilized by EU-RL 54 (7,976 ± 0.01 µg/l) followed by EU-RL 53 (6,322 ± 0.01 µg/l). Phosphorus solubilizers also possessed other plant growth promoting traits, such as the production of ammonia, hydrogen cyanide, zinc solubilization, production of hydrolytic enzymes. The isolates were identified belonging to different genera Acinetobacter, Bacillus, Enterobacter, Klebsiella, Proteus, Pseudomonas, and Staphylococcus. This is the first report for these plant growth promoting bacteria to solubilize a considerable amount of phosphorus isolated from Ecosystems, Lesser Himalayas.

Assessment of the Impacts of Plant Growth-Promoting Micro-Organisms on Potato Farming in Different Climatic Conditions in Morocco

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