Carbon Metabolism of Sulfate-Reducing Bacteria

Hansen, Theo A.

doi:10.1007/978-1-4613-9263-7_2

Cited by 82 publications

(54 citation statements)

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“…These include, hydrogen, volatile fatty acids up to C 2 o, alcohols, several amino acids, monomeric sugars and a large number of aromatic compounds (Hansen, 1993). However in the sort of digester under consid eration, many of the above components may not be present in significant quantities (e.g.…”

Section: Sulphate Reductionmentioning

confidence: 99%

A mathematical model of a high sulphate wastewater anaerobic treatment system

Knobel

Lewis

2002

Water Research

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Section: Sulphate Reductionmentioning

confidence: 99%

A mathematical model of a high sulphate wastewater anaerobic treatment system

Knobel

Lewis

2002

Water Research

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“…concentration or pH of the leachate, nutrient concentrations, temperature and redox potential. It is also potentially able to make more complete use of organic substrates through consortium growth than would be possible by a single strain (Madsen & Aamand, 1992 ;Hansen, 1993 ;Davison e t al., 1994). It was therefore advisable to utilize this fact as far as possible and also to minimize the impact of such contaminants by maintaining a mixed culture stabilized by the selective pressure of process conditions.…”

Section: Introductionmentioning

confidence: 99%

Mixed sulphate-reducing bacterial cultures for bioprecipitation of toxic metals: factorial and response-surface analysis of the effects of dilution rate, sulphate and substrate concentration

1996

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The effect of process variables on alkalization and removal of typical contaminating toxic metals from a simulated acid leachate by continuous mixed cultures of sulphate-reducing bacteria was studied. It was shown that the amount of metal removed and rise in pH both varied with the amount of sulphate reduction occurring, the residual sulphate concentration being the main determinant of final pH. Factorial experiments showed that sulphate reduction was enhanced by increasing the substrate concentration and inhibited by the initial sulphate concentration. The dilution rate did not exert a primary effect, but the existence of a significant interactive effect between the substrate and sulphate concentrations and the flow rate was indicative of a quantitative modification of the effect o f the former two variables by the latter. The biomass concentration in the cultures was only affected by the substrate concentration indicating that the other variables acted by selection for or against sulphate-reducing components of the mixed culture. A responsesurface analysis of the yield of sulphate reduction and alkalization against substrate Concentration and dilution rate indicated that sulphate reduction (and alkalization) was sensitive to both of these variables where the substrate:sulphate stoichiometry was in the range 1 :1-3: 1. A t lower sulphate concentrations complete reduction occurred at all levels while at higher sulphate concentrations washout occurred in all runs, which indicated that the key variable was the substrate : sulphate stoichiometry and its interaction with the dilution rate. Attention is drawn to the efficiency of the experimental designs employed for elucidating these factors.

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“…Sulfate-reducing bacteria (SRB) are capable of utilizing various compounds, such as H 2 , fatty acids, alcohols, amino acids and sugars, as well as aliphatic and aromatic hydrocarbons, as electron donors for sulfate reduction (Hansen, 1993;Castro et al, 2000;Rabus et al, 2000). Major intermediates of anaerobic decomposition of organic matter, such as formate, acetate, propionate, butyrate, lactate and H 2 , serve as the most important electron donors for sulfate reduction, and thus SRB contribute significantly to the mineralization of organic matter and the sulfur cycle (Sørensen et al, 1981;Jørgensen, 1982).…”

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confidence: 99%

Desulfoluna butyratoxydans gen. nov., sp. nov., a novel Gram-negative, butyrate-oxidizing, sulfate-reducing bacterium isolated from an estuarine sediment in Japan

Suzuki

Ueki

Amaishi

et al. 2008

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLO

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Desulfoluna butyratoxydans gen. nov., sp. nov., a novel Gram-negative, butyrate-oxidizing, sulfatereducing bacterium isolated from an estuarine sediment in Japan Daisuke Suzuki, Atsuko Ueki, Aya Amaishi3 and Katsuji Ueki Correspondence Atsuko Ueki uatsuko@tds1.tr.yamagata-u.ac.jp Faculty of Agriculture, Yamagata University, Wakaba-machi 1-23, Tsuruoka, Yamagata 997-8555, Japan A strictly anaerobic, mesophilic, sulfate-reducing bacterial strain, designated MSL71 T , was isolated from an estuarine sediment from the Sea of Japan bordering the Japanese islands and was characterized phenotypically and phylogenetically. The cells were found to be Gram-negative, motile, non-spore-forming, slightly curved rods. Catalase and oxidase activities were not detected. The optimum NaCl concentration for growth was 2.0 % (w/v), the optimum temperature was 30 6C and the optimum pH was 6.3. Strain MSL71 T utilized formate, butyrate, pyruvate, lactate, malate, ethanol, propanol, butanol, glycerol and H 2 as electron donors for sulfate reduction. The organic electron donors used were incompletely oxidized, mainly to acetate. The strain did not use acetate, propionate, fumarate, succinate, methanol, glycine, alanine, serine, aspartate or glutamate. Sulfite and thiosulfate were used as electron acceptors with lactate as an electron donor, but fumarate was not utilized. Without electron acceptors, pyruvate and malate, but not lactate or fumarate, were fermented. The genomic DNA G+C content was 62.0 mol%. Menaquinone MK-8(H 4 ) was the major respiratory quinone. The major cellular fatty acids were C 14 : 0 , C 16 : 0 , C 16 : 1 v7, C 18 : 1 v9, C 18 : 1 v7 and C 14 : 0 3-OH. A phylogenetic analysis based on the 16S rRNA gene sequence placed the strain in the class Deltaproteobacteria. The closest recognized relative of strain MSL71 T was Desulfofrigus fragile (93.9 % sequence similarity) and the next closest recognized species was Desulfofrigus oceanense (93.5 %). On the basis of the significant differences in the 16S rRNA gene sequence and phenotypic characteristics between strain MSL71 T and each of the related species, a novel genus and species, Desulfoluna butyratoxydans gen. nov., sp. nov., are proposed to accommodate strain MSL71 T . The type strain is MSL71 T (5JCM 14721 T 5DSM 19427 T ).Sulfate-reducing bacteria (SRB) are capable of utilizing various compounds, such as H 2 , fatty acids, alcohols, amino acids and sugars, as well as aliphatic and aromatic hydrocarbons, as electron donors for sulfate reduction (Hansen, 1993;Castro et al., 2000;Rabus et al., 2000). Major intermediates of anaerobic decomposition of organic matter, such as formate, acetate, propionate, butyrate, lactate and H 2 , serve as the most important electron donors for sulfate reduction, and thus SRB contribute significantly to the mineralization of organic matter and the sulfur cycle (Sørensen et al., 1981;Jørgensen, 1982). In the course of an investigation of SRB in an estuarine sediment from the Japanese islands, we isolated various strains of phylogenetic...

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Carbon Metabolism of Sulfate-Reducing Bacteria

Cited by 82 publications

References 0 publications

A mathematical model of a high sulphate wastewater anaerobic treatment system

A mathematical model of a high sulphate wastewater anaerobic treatment system

Mixed sulphate-reducing bacterial cultures for bioprecipitation of toxic metals: factorial and response-surface analysis of the effects of dilution rate, sulphate and substrate concentration

Desulfoluna butyratoxydans gen. nov., sp. nov., a novel Gram-negative, butyrate-oxidizing, sulfate-reducing bacterium isolated from an estuarine sediment in Japan

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