HEAVY METAL-TOLERANT RHIZOBACTERIAL ISOLATION FROM CONTAMINATED SOIL SAMPLES OF PARICCHA, BUNDELKHAND
AbstractHeavy metal contamination poses a severe risk to soil health and crop productivity, particularly in industrially impacted regions. In this study, agricultural soils surrounding the Pariccha Thermal Power Plant, Bundelkhand, Uttar Pradesh, were sampled to isolate cadmium (Cd)-tolerant rhizobacteria from three different sites. A total of 35 bacterial isolates were obtained, among these, three (VYS1, RGB2, and RGB4) demonstrated strong Cd tolerance up to 500 µg/mL. These isolates were further evaluated for plant growth-promoting rhizobacteria (PGPR) traits, including phosphate solubilization, indole-3-acetic acid (IAA) production, and ammonia generation. All three isolates exhibited positive activity, with RGB4 showing the highest phosphate solubilization and ammonia production, while RGB2 produced comparatively higher IAA levels. The findings highlight the dual functionality of indigenous rhizobacteria from contaminated soils—tolerance to cadmium stress and expression of PGPR traits—suggesting their potential as preliminary candidates for bioremediation and sustainable agriculture. Future work should focus on molecular identification and in-planta validation to confirm their bioinoculant potential.
Article Information
30
1958-1963
516 KB
1
English
IJPSR
Shreya Verma, Pranav Shukla, Ajay Kumar Gupta and Manishi Tripathi *
Department of Microbiology, School of Life Sciences and Biotechnology, Chhatrapati Shahu Ji Maharaj University, Kanpur, Uttar Pradesh, India.
manishitripathi@csjmu.ac.in
26 January 2026
20 March 2026
28 April 2026
10.13040/IJPSR.0975-8232.17(6).1958-63
01 June 2026
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