Screening and Optimization of Zinc Removal Potential in Pseudomonas aeruginosa-HMR1 and its Plant Growth-Promoting Attributes

The soil samples of old Zawar mine sites were sandy texture, basic, electric conductivity range from 16 to 59 dSm −1 with a high content of heavy metals of Zn, Pb, Cd, and Fe, indicating poor soil-health. Two bacterial isolates Pseudomonas aeruginosa HMR1 and P. aeruginosa HMR16 (GenBank-accession-n...

Full description

Saved in:
Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2022-03, Vol.108 (3), p.468-477
Main Authors: Bhojiya, Ali Asger, Joshi, Harshada, Upadhyay, Sudhir K., Srivastava, Abhishek K., Pathak, Vinayak Vandan, Pandey, Vimal Chandra, Jain, Devendra
Format: Article
Language:English
Subjects:
Adsorption
Aquatic Pollution
Cadmium
Earth and Environmental Science
Ecotoxicology
Electrical resistivity
Environment
Environmental Chemistry
Environmental Health
Exopolysaccharides
Heavy metals
Iron
Lead
Metals, Heavy - analysis
Microscopic analysis
Nutrient concentrations
Optimization
Phylogeny
Plant growth
Pollution
Proline
Pseudomonas aeruginosa
Soil
Soil microorganisms
Soil Pollutants - analysis
Soil Science & Conservation
Solubilization
Waste Water Technology
Water Management
Water Pollution Control
Zinc
Zinc - analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The soil samples of old Zawar mine sites were sandy texture, basic, electric conductivity range from 16 to 59 dSm −1 with a high content of heavy metals of Zn, Pb, Cd, and Fe, indicating poor soil-health. Two bacterial isolates Pseudomonas aeruginosa HMR1 and P. aeruginosa HMR16 (GenBank-accession-number KJ191700 and KU174205, respectively), differed in the Phylogenetic tree based on 16S-rDNA sequences. HMR1 isolate showed the high potential of Plant growth-promoting attributes like IAA, Phosphate-solubilization, Exopolysaccharide production, and Proline activities at high concentration of Zn augmented nutrient media after 24 h, followed by HMR1 + HMR16 and HMR16. Both isolates were survived at 100 ppm Zn (w/v) concentration, followed by Pb, Cd, and Fe. Linear R L value from Langmuir and Freundlich isotherms revealed that the suitable condition of Zn adsorption by HMR1 was at pH8 with 40°C. The value of r 2 from pseudo-second-order kinetics and Transmission-Electron-Microscopic analysis confirmed Zn adsorption by HMR1.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-021-03232-5