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| Content Provider | Springer Nature Link |
|---|---|
| Author | Nair, Rashmi R. Silveira, Célia M. Diniz, Mário S. Almeida, Maria G. Moura, Jose J. G. Rivas, Maria G. |
| Copyright Year | 2014 |
| Abstract | The activity of sulfate-reducing bacteria (SRB) intensifies the problems associated to corrosion of metals and the solution entails significant economic costs. Although molybdate can be used to control the negative effects of these organisms, the mechanisms triggered in the cells exposed to Mo-excess are poorly understood. In this work, the effects of molybdate ions on the growth and morphology of the SRB Desulfovibrio alaskensis G20 (DaG20) were investigated. In addition, the cellular localization, ion uptake and regulation of protein expression were studied. We found that molybdate concentrations ranging between 50 and 150 µM produce a twofold increase in the doubling time with this effect being more significant at 200 µM molybdate (five times increase in the doubling time). It was also observed that 500 µM molybdate completely inhibits the cellular growth. On the context of protein regulation, we found that several enzymes involved in energy metabolism, cellular division and metal uptake processes were particularly influenced under the conditions tested. An overall description of some of the mechanisms involved in the DaG20 adaptation to molybdate-stress conditions is discussed. |
| Starting Page | 311 |
| Ending Page | 322 |
| Page Count | 12 |
| File Format | |
| ISSN | 09498257 |
| Journal | JBIC Journal of Biological Inorganic Chemistry |
| Volume Number | 20 |
| Issue Number | 2 |
| e-ISSN | 14321327 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2014-12-09 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Sulfate-reducing bacteria Hydrogen cycling Molybdenum Tungsten Microbiologically influenced corrosion Biochemistry Microbiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biochemistry Inorganic Chemistry |
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