The cyanobacterium Synechocystis sp. PUPCCC 62: a potential candidate for biotransformation of Cr(VI) to Cr(III) in the presence of sulphate

Environmental Science and Pollution Research International
Shahnaz ParveenD P Singh

Abstract

The cyanobacterium Synechocystis sp., an isolate from polluted water of Satluj river, India, was found resistant to chromium(VI) up to 200 nmol mL(-1). In this study, it has been demonstrated that this organism takes up Cr(VI) through a phosphate transporter. The organism removed 250 nmol Cr(VI), 210 nmol phosphate and 180 nmol sulphate mg(-1) protein from a buffer solution in 8 h. Cr(VI) uptake by the organism decreased to 135 nmol Cr(VI) removed per milligram protein in the presence of 200 nmol phosphate mL(-1), but the same concentration of sulphate did not affect the Cr(VI) uptake. Similarly, the presence of Cr(VI) in the solution affected the phosphate uptake but not sulphate uptake by the test organism. The kinetic studies on Cr(VI) uptake in the presence of phosphate revealed that phosphate and Cr(VI) acted as competitive inhibitors for one another. Phosphate-starved cells of the organism removed more amount of Cr(VI) than the basal medium-grown cells. The uptake of Cr(VI) as well as phosphate by the organism was observed to be a light-dependent process. Cinnamic acid, a phosphate transporter inhibitor, inhibited Cr(VI) uptake by the organism. Results clearly demonstrated that the test organism takes up chromate ions by ...Continue Reading

References

Dec 1, 1979·Oral Surgery, Oral Medicine, and Oral Pathology·M L Bernstein, R Carlish
Jul 1, 1990·Applied and Environmental Microbiology·Y IshibashiS Silver
Jan 1, 1983·Advances in Microbial Physiology·I S Kulaev, V M Vagabov
Jan 1, 1994·Reviews of Environmental Contamination and Toxicology·M E LosiW T Frankenberger
Nov 20, 1998·Biodegradation·C GarbisuJ L Serra
Jul 14, 2000·American Journal of Industrial Medicine·H J GibbB C Rooney
May 12, 2001·FEMS Microbiology Reviews·C CervantesR Moreno-Sánchez
Sep 1, 1964·Journal of Bacteriology·R S SAFFERMAN, M E MORRIS
Oct 19, 2005·Biochemistry·Alexander MorokuttiPeter Macheroux
Jan 24, 2006·Bioresource Technology·Sarabjeet Singh Ahluwalia, Dinesh Goyal
Mar 10, 2006·Molecular & Cellular Proteomics : MCP·Steven D BrownDorothea K Thompson
Dec 26, 2006·Journal of Hazardous Materials·Zainul Akmar ZakariaWan Azlina Ahmad
Oct 16, 2007·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Martha I Ramírez-DíazCarlos Cervantes
Aug 21, 2008·Journal of Industrial Microbiology & Biotechnology·Flor de María Guillén-JiménezEliseo Cristiani-Urbina
Dec 1, 2009·Bioresource Technology·Nur Koçberber KiliçGönül Dönmez
Sep 18, 2012·Environmental Science and Pollution Research International·Sumit K SoniAlok Kalra
Nov 7, 2013·Environmental Science and Pollution Research International·Nezha Tahri JouteyNaïma El Ghachtouli

❮ Previous
Next ❯

Citations

Dec 23, 2020·The Science of the Total Environment·Jinyu CuiWeiwen Zhang

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.

Related Papers

Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
Maja PasPeter Raspor
Tanpakushitsu kakusan koso. Protein, nucleic acid, enzyme
T KanekoS Tabata
Environmental Science and Pollution Research International
D P SinghA Gulati
© 2022 Meta ULC. All rights reserved