Title |
Arsenic and Selenium in Microbial Metabolism*
|
---|---|
Published in |
Annual Review of Microbiology, October 2006
|
DOI | 10.1146/annurev.micro.60.080805.142053 |
Pubmed ID | |
Authors |
John F. Stolz, Partha Basu, Joanne M. Santini, Ronald S. Oremland |
Abstract |
Arsenic and selenium are readily metabolized by prokaryotes, participating in a full range of metabolic functions including assimilation, methylation, detoxification, and anaerobic respiration. Arsenic speciation and mobility is affected by microbes through oxidation/reduction reactions as part of resistance and respiratory processes. A robust arsenic cycle has been demonstrated in diverse environments. Respiratory arsenate reductases, arsenic methyltransferases, and new components in arsenic resistance have been recently described. The requirement for selenium stems primarily from its incorporation into selenocysteine and its function in selenoenzymes. Selenium oxyanions can serve as an electron acceptor in anaerobic respiration, forming distinct nanoparticles of elemental selenium that may be enriched in (76)Se. The biogenesis of selenoproteins has been elucidated, and selenium methyltransferases and a respiratory selenate reductase have also been described. This review highlights recent advances in ecology, biochemistry, and molecular biology and provides a prelude to the impact of genomics studies. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 10 | 2% |
Canada | 6 | 1% |
Chile | 2 | <1% |
South Africa | 1 | <1% |
Colombia | 1 | <1% |
Spain | 1 | <1% |
Turkey | 1 | <1% |
Unknown | 499 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 121 | 23% |
Researcher | 85 | 16% |
Student > Master | 70 | 13% |
Student > Bachelor | 40 | 8% |
Student > Doctoral Student | 39 | 7% |
Other | 95 | 18% |
Unknown | 71 | 14% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 152 | 29% |
Environmental Science | 86 | 17% |
Biochemistry, Genetics and Molecular Biology | 61 | 12% |
Earth and Planetary Sciences | 43 | 8% |
Chemistry | 28 | 5% |
Other | 55 | 11% |
Unknown | 96 | 18% |