ArticleJournal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry2015
Changes in metabolic pathways of Desulfovibrio alaskensis G20 cells induced by molybdate excess.
Article in Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 19 citations in OpenAlex.
- Ultrahigh-resolution imaging of biogenic phosphorus and molybdenum in palaeoproterozoic gunflint microfossils.Scientific reports · 2024Article
- OrpR is a σMolecular microbiology · 2021Article
- Advancement in Benthic Microbial Fuel Cells toward Sustainable Bioremediation and Renewable Energy Production.International journal of environmental research and public health · 2021Review
- Influence of sulfate reduction on fraction and regeneration of phosphorus at sediment-water interface of urban malodorous river.Environmental science and pollution research international · 2021Article
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Authors and funding
6 authors at 3 institutions in 2 countries.
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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.
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