Untitled

Suh, Jung Ho; Kim, Dong Seog; Yun, Jong Won; Song, Seunghwan

doi:10.1023/a:1005376424157

Cited by 52 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, Pb(II) is accumulated in the cytoplasm. This phase is independent of metabolism (Suh et al , 1998, 1999a). In the cytoplasm, glutathione (GSH) has been reported to be involved in the neutralization of the toxicity of other heavy metals, such as Cd(II) and Se(II) (Gharieb & Gadd, 2004).…”

Section: Introductionmentioning

confidence: 99%

Lead resistance in micro-organisms

2014

View full text Add to dashboard Cite

Lead (Pb) is an element present in the environment that negatively affects all living organisms. To diminish its high toxicity, micro-organisms have developed several mechanisms that allow them to survive exposure to Pb(II). The main mechanisms of lead resistance involve adsorption by extracellular polysaccharides, cell exclusion, sequestration as insoluble phosphates, and ion efflux to the cell exterior. This review describes the various lead resistance mechanisms, and the regulation of their expression by lead binding regulatory proteins. Special attention is given to the Pbr system from Cupriavidus metallidurans CH34, which involves a unique mechanism combining efflux and lead precipitation.

show abstract

Section: Introductionmentioning

confidence: 99%

Lead resistance in micro-organisms

2014

View full text Add to dashboard Cite

show abstract

“…The essential characteristics of a living biomass used in a metal ion removal process are tolerance and uptake capacities (Macaskie and Dean 1989;Suh et al 1998). One of the most ubiquitous biomass types available for bioremediation of heavy metals at low pH is yeast.…”

Section: Introductionmentioning

confidence: 99%

Cadmium Uptake by Yeast, Candida tropicalis, Isolated from Industrial Effluents and Its Potential Use in Wastewater Clean-Up Operations

Rehman

Anjum

2009

Water Air Soil Pollut

View full text Add to dashboard Cite

This study is aimed at assessing the ability of metal-resistant yeast, Candida tropicalis, to uptake cadmium from the liquid medium. The minimum inhibitory concentration of Cd 2+ against C. tropicalis was 2,800 mg L −1 . The yeast also showed tolerance towards Zn 2+ (3,100 mg L −1 ), Ni 2+ (3,000 mg L −1 ), Hg 2+ (2,400 mg L −1 ), Cu 2+ (2,300 mg L −1 ), Cr 6+ (2,000 mg L −1 ), and Pb 2+ (1,200 mg L −1 ). The yeast isolate showed typical growth curves, but low specific rate of growth was observed in the presence of cadmium. The yeast isolate showed optimum growth at 30°C and pH 7. The metal processing ability of the isolate was determined in a medium containing 100 mg L −1 of Cd 2+ . C. tropicalis could decline Cd 2+ 57%, 69%, and 80% from the medium after 48, 96, and 144 h, respectively. C. tropicalis was also able to remove Cd 2+ 56% and 73% from the wastewater after 6 and 12 days, respectively. Cd produced an increase in glutathione (GSH) and non-protein thiol levels by 146.15% and 59.67% at 100 mg L −1 concentration, respectively. Metal tolerance and accumulation together with changes in the GSH status and non-protein thiols under Cd exposure were studied in C. tropicalis.

show abstract

Comparison of different sorbents (inorganic and biological) for the removal of Pb2+ from aqueous solutions

Suh

Kim

2000

J. Chem. Technol. Biotechnol.

View full text Add to dashboard Cite

Untitled

Cited by 52 publications

References 10 publications

Lead resistance in micro-organisms

Lead resistance in micro-organisms

Cadmium Uptake by Yeast, Candida tropicalis, Isolated from Industrial Effluents and Its Potential Use in Wastewater Clean-Up Operations

Comparison of different sorbents (inorganic and biological) for the removal of Pb2+ from aqueous solutions

Contact Info

Product

Resources

About