Potential application of novel cadmium-tolerant bacteria in bioremediation of Cd-contaminated soil

Heavy Metal Tolerance of Microorganisms Isolated from Coastal Marine Sediments and Their Lead Removal Potential

“…It has been reported that the ligands (functional groups) of the cell membrane with a negative load are useful for eliminating metals and other toxic compounds via electrostatic interactions [81]. Thus, the bonding sites with the greatest potential in the microorganisms cells are the carboxyl, amine, phosphate, sulphate, and hydroxyl groups [73], i.e., those recorded in this study during biomass FTIR analysis.…”

“…Higher toxicity of cadmium compared to other heavy metals has been previously reported for several marinederived microorganisms [70][71][72]. Authors argued that the ability of bacteria to tolerate different concentrations of heavy metals depends on many factors, including their taxonomic genus, metabolic abilities, growth conditions, and growth phase [73]. For instance, some studies have indicated that culture conditions, such as pH and salinity levels, play crucial roles in expressing cadmium resistance genes [74].…”

Antibiotic and Heavy Metal Co-Resistant Strain Isolated from Enrichment Culture of Marine Sediments, with Potential for Environmental Bioremediation Applications

“…strain CS-67 to be 350 mg/L and the MIC of Ni (II) for the growth of Geotrichum sp. strain CS-67 to be 100 mg/L; Ma et al [ 44 ] found the MIC of Cd (II) for the growth of Bacillus licheniformis strain PB3 to be 50 mg/L. Through comparison with these strains, strain ZC255 had a superior tolerance to Cu (II), Cd (II), Pb (II), Cr (III), Zn (II), and Ni (II), which means this strain has great potential for the bioremediation of Cu contamination.…”

Inoculation of chromium-tolerant bacterium LBA108 to enhance resistance in radish (Raphanus sativus L.) and combined remediation of chromium-contaminated soil

“…Ali et al 23 discovered that the application of citric acid increased plant growth even at a high concentration of Cr; however, the application of citric acid with S. aureus inoculum further boosted the plant growth and promoted the absorption of Cr 3+ and Cr 6+ , enhancing the phytoremediation potential of castor bean. Ma et al 24 immobilized Paenarthrobactor nitroguajacolicus , Lysinibacillus fusiformis , Bacillus licheniformis , and Methyl-lobacium brachiatum into pots containing Cd-contaminated rape plants to explore their remediation ability, and the result showed that these strains reduced the accumulation and migration of cadmium into plants, as well as the availability of cadmium in soil. Gao et al 25 established a remediation system by combining heavy-metal-tolerant bacteria isolated from soil in a lead-zinc mining area with corn stover and discovered that immobilized bacteria increased the antioxidant capacity of the plants, the activity of soil enzymes and the soil quality.…”