AI Article Synopsis
- The study isolated 53 phosphate solubilizing bacteria (PSB) strains from heavy metal contaminated soils to assess their ability to immobilize lead (Pb), with notable strains identified as Leclercia adecarboxylata and Pseudomonas putida.
- Five strains exhibited impressive lead resistance, with minimum inhibitory concentrations (MICs) ranging from 0.5 to 8 mM, while their phosphate solubilizing capabilities were influenced by organic acids, acid phosphatase activity, and pH levels.
- The research highlighted that high lead concentrations can hinder PSB growth; however, the L1-5 strain showed potential in transforming lead ions into less harmful forms, making it
Article Abstract
Phosphate solubilizing bacteria (PSB) were isolated from heavy metal contaminated soils and their potentials for lead (Pb) immobilization in soil were studied in this paper. 53 PSB strains were isolated and their minimum inhibitory concentrations (MICs) for lead were determined. The results showed that strains B3, B4, B10, F2-1 and L1-5 had relatively high lead resistant capabilities with MICs ranged from 0.5 to 8 mM, and were identified as species of Leclercia adecarboxylata and Pseudomonas putida by 16S rRNA. The most efficient PSB strains could solubilize 200 mg L of P, and phosphate solubilizing capacity of those PSBs was related to the concentrations of organic acids, acid phosphatase activity and pH. Furthermore, the growth pattern of L1-5 strain with the presence of Pb(NO) was observed and a mechanism of biomineralization of lead ions in bacteria biomass was determined by FT-IR and XRD analyses. Results showed that high concentration of lead can inhibit the growth of PSBs, and L1-5 isolate can transform lead ions into lead hydroxyapatite and pyromorphite. The PSBs, which possessing the properties of immobilizing lead through phosphate solubilization and biomineralization could be exploited for bioremediation of Pb polluted soils in future.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jenvman.2018.10.012 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effect of ultrasound-assisted phosphates treatment on solubilization and stable dispersion of rabbit Myofibrillar proteins at low ionic strength.
Food Chem
January 2025
College of Food and Bioengineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China; School of Future Food Modern Industry, Xihua University, Chengdu 610039, China. Electronic address:
The effects of high-intensity ultrasound (HIU) on the dispersibility of myofibrillar proteins (MPs) in low-salt medium were investigated. HIU-assisted STPP or TSPP could sharply improve the solubility and dispersibility of MPs (from 38.12 % to 94.
View Article and Find Full Text PDFSelection of In Vivo Relevant Dissolution Test Parameters for the Development of Cannabidiol Formulations with Enhanced Oral Bioavailability.
Pharmaceutics
January 2025
Laboratory of Pharmaceutical Technology and Biopharmacy, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, 4000 Liège, Belgium.
Cannabidiol (CBD) shows interesting therapeutic properties but has yet to demonstrate its full potential in clinical trials partly due to its low solubility in physiologic media. Two different formulations of CBD (amorphous and lipid-based) have been optimized and enable an increase in bioavailability in piglets. In vivo studies are time-consuming, costly and life-threatening.
View Article and Find Full Text PDFApplication of Biochar-Immobilized for Enhancing Phosphorus Uptake and Growth in Rice.
Plants (Basel)
January 2025
State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China.
Phosphorus (P) is an essential nutrient for rice growth, and the presence of phosphate-solubilizing bacteria (PSB) is an effective means to increase soil P content. However, the direct application of PSB may have minimal significance due to their low survival in soil. Biochar serves as a carrier that enhances microbial survival, and its porous structure and surface characteristics ensure the adsorption of .
View Article and Find Full Text PDFUnveiling the potential of Loigolactobacillus coryniformis BCH-4 to ameliorate drought stress in Zea mays L.
World J Microbiol Biotechnol
January 2025
National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, 38000, Pakistan.
The lactic acid bacterial (LAB) species have proven multifaceted roles in sustainable agriculture due to their biologically safe nature, making them eco-friendly. However, their plant growth-improving mechanisms in stressed and non-stressed conditions are still under consideration. Thus, the current work has been planned to evaluate the drought tolerance potential and plant growth-promoting (PGP) traits of Loigolactobacillus coryniformis BCH-4 in Zea mays L.
View Article and Find Full Text PDFInsights from a Genome-Wide Study of UADEC20: A Promising Strain for Phosphate Solubilization and Exopolysaccharides Production.
Curr Issues Mol Biol
January 2025
Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Saltillo C.P. 25280, Mexico.
The genome sequence of UADEC20 is presented, which is a strain isolated from agricultural fields in northeast Mexico. The genome was assembled into 13 scaffolds, constituting a total chromosome size of 4.2 Mbp, with two of the scaffolds representing closed plasmids.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!