Book contents
- Frontmatter
- Contents
- List of Contributors
- Preface
- 1 Energy metabolism and phylogenetic diversity of sulphate-reducing bacteria
- 2 Molecular strategies for studies of natural populations of sulphate-reducing microorganisms
- 3 Functional genomics of sulphate-reducing prokaryotes
- 4 Evaluation of stress response in sulphate-reducing bacteria through genome analysis
- 5 Response of sulphate-reducing bacteria to oxygen
- 6 Biochemical, proteomic and genetic characterization of oxygen survival mechanisms in sulphate-reducing bacteria of the genus Desulfovibrio
- 7 Biochemical, genetic and genomic characterization of anaerobic electron transport pathways in sulphate-reducing Delta proteobacteria
- 8 Dissimilatory nitrate and nitrite ammonification by sulphate-reducing eubacteria
- 9 Anaerobic degradation of hydrocarbons with sulphate as electron acceptor
- 10 Sulphate-reducing bacteria from oil field environments and deep-sea hydrothermal vents
- 11 The sub-seafloor biosphere and sulphate-reducing prokaryotes: their presence and significance
- 12 Ecophysiology of sulphate-reducing bacteria in environmental biofilms
- 13 Bioprocess engineering of sulphate reduction for environmental technology
- 14 Bioremediation of metals and metalloids by precipitation and cellular binding
- 15 Enzymatic and genomic studies on the reduction of mercury and selected metallic oxyanions by sulphate-reducing bacteria
- 16 Sulphate-reducing bacteria and their role in corrosion of ferrous materials
- 17 Anaerobic metabolism of nitroaromatic compounds and bioremediation of explosives by sulphate-reducing bacteria
- 18 Sulphate-reducing bacteria and the human large intestine
- Index
- Plate section
- References
6 - Biochemical, proteomic and genetic characterization of oxygen survival mechanisms in sulphate-reducing bacteria of the genus Desulfovibrio
Published online by Cambridge University Press: 22 August 2009
- Frontmatter
- Contents
- List of Contributors
- Preface
- 1 Energy metabolism and phylogenetic diversity of sulphate-reducing bacteria
- 2 Molecular strategies for studies of natural populations of sulphate-reducing microorganisms
- 3 Functional genomics of sulphate-reducing prokaryotes
- 4 Evaluation of stress response in sulphate-reducing bacteria through genome analysis
- 5 Response of sulphate-reducing bacteria to oxygen
- 6 Biochemical, proteomic and genetic characterization of oxygen survival mechanisms in sulphate-reducing bacteria of the genus Desulfovibrio
- 7 Biochemical, genetic and genomic characterization of anaerobic electron transport pathways in sulphate-reducing Delta proteobacteria
- 8 Dissimilatory nitrate and nitrite ammonification by sulphate-reducing eubacteria
- 9 Anaerobic degradation of hydrocarbons with sulphate as electron acceptor
- 10 Sulphate-reducing bacteria from oil field environments and deep-sea hydrothermal vents
- 11 The sub-seafloor biosphere and sulphate-reducing prokaryotes: their presence and significance
- 12 Ecophysiology of sulphate-reducing bacteria in environmental biofilms
- 13 Bioprocess engineering of sulphate reduction for environmental technology
- 14 Bioremediation of metals and metalloids by precipitation and cellular binding
- 15 Enzymatic and genomic studies on the reduction of mercury and selected metallic oxyanions by sulphate-reducing bacteria
- 16 Sulphate-reducing bacteria and their role in corrosion of ferrous materials
- 17 Anaerobic metabolism of nitroaromatic compounds and bioremediation of explosives by sulphate-reducing bacteria
- 18 Sulphate-reducing bacteria and the human large intestine
- Index
- Plate section
- References
Summary
INTRODUCTION
Sulphate-reducing bacteria (SRB) are anaerobes, which derive energy for growth from anaerobic metabolism, coupling the oxidation of organic substrates with the dissimilatory reduction of sulphate to hydrogen sulphide (sulphate respiration). Although generally considered as strict anaerobes, more and more data indicate a higher abundance and metabolic activity in oxic zones of biotopes, such as marine and freshwater sediments, than in neighbouring anoxic zones (Ravenschlag et al., 2000; Sass et al., 1997; 1998). A well-documented example of sulphate reduction under oxic conditions is also provided by cyanobacterial mats. Here a zone of photosynthetic oxygen synthesis overlaps with a zone of sulphide production by SRB and a zone of oxygen-dependent microbial sulphide oxidation, creating steep, opposing gradients of oxygen and sulphide, which fluctuate with the rhythm of day and night (Canfield and des Marais, 1991; Teske et al., 1998; Caumette et al., 1994). In cyanobacterial mats from the saline evaporation pond in Baja California, Desulfobacter and Desulfobacterium are restricted to greater depths while the Desulfococcus and Desulfovibrio groups are predominant in the upper part of the photo-oxic zone (Risatti et al., 1994). The high numbers of SRB found in these oxic environments indicate that these organisms are able to deal with temporal exposures to oxygen concentrations as high as 1.5 mM (Sigalevich and Cohen, 2000).
In these oxygen-exposed systems SRB of the genus Desulfovibrio are among the most oxygen-tolerant, e.g. Desulfovibrio oxyclinae was isolated from Solar Lake microbial mats (Krekeler et al., 1997) and Desulfovibrio desulfuricans strain DvO1 was isolated from activated sludge aerated to atmospheric oxygen saturation (Kjeldsen et al., 2005).
- Type
- Chapter
- Information
- Sulphate-Reducing BacteriaEnvironmental and Engineered Systems, pp. 185 - 214Publisher: Cambridge University PressPrint publication year: 2007
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