Colourless sulfur bacteria and their role in the sulfur cycle

  title={Colourless sulfur bacteria and their role in the sulfur cycle},
  author={J. Gijs Kuenen},
  journal={Plant and Soil},
  • J. Kuenen
  • Published 1 August 1975
  • Environmental Science
  • Plant and Soil
The bacteria belonging to the families of the Thiobacteriaceae, Beggiatoaceae and Achromatiaceae are commonly called the colourless sulfur bacteria. While their ability to oxidize reduced inorganic sulfur compounds has clearly been established, it is still not known whether all these organisms can derive metabolically useful energy from these oxidations. During the last decades research has mainly focussed on the genus Thiobacillus. Bacteria belonging to this genus can oxidize a variety of… 

Biogenesis of thiosulfate in microorganisms and its applications for sustainable metal extraction

This review serves as a study of microorganisms to collect and analyze the reported species for potential utilization of biogenic thiosulfate in industrial applications, with a specific focus on precious metals extraction.

Colorless Sulfur Bacteria , Beggiatoa spp . and Thiovulum spp . , in 02 and H 2 S Microgradients

Diffusion calculations showed that formation of mats on solid substrates or of veils in the water represented optimal strategies for the bacteria to achieve a stable microenvironment, a high substrate supply, and an efficient competition with chemical sulfide oxidation.

CO metabolism of carboxydothermus hydrogenoformans and archaeoglobus fulgidus

Microbial CO metabolism was studied in detail with the ultimate aim to assess the feasibility of a biotechnological process that could replace the existing water gas shift technology in the production of a fuel cell grade hydrogen gas from synthesis gas and show that many electron acceptors can be reduced by a wide variety of micro organisms with CO as electron donor.

Effect of nutrients and elemental sulfur particle size on elemental sulfur oxidation and the growth of Thiobacillus thiooxidans

Two laboratory incubation experiments with a high S sorbing basaltic soil from Walcha, New South Wales, are reported here and the S oxidation rates recorded in these experiments were compared with those predicted by an S oxidation model and found to be in close agreement.

Biological sulphide oxidation in a fed‐batch reactor

This study shows that, in a sulphide‐oxidizing bioreactor with a mixed culture of Thiobacilli, the formation of sulphur and sulphate as end‐products from the oxidation of sulphide can be

Microbial CO Conversions with Applications in Synthesis Gas Purification and Bio-Desulfurization

CO utilization by various anaerobic micro-organisms and their possible role in biotechnological processes, with a focus on hydrogen production and bio-desulfurization are reviewed.

Oxidation of biologically-produced elemental sulfur at 1 neutrophilic conditions 1 2 3

Investigation of the biological oxidation of S as a remediation strategy for reactor clogging indicated that S biological oxidation inside a clogged biotrickling filter occurred at a comparable rate as those reported for stirred tank reactors.

Assessment of the Environmental and Operational Factors Affecting the Bioremediation of H2S Gas as Air Pollutant

This study aims at optimizing environmental and operational factors affecting the bioremediation of H2S as air pollutants. Sulfur gases are emitted from many industrial sources and have adverse



Biochemical Basis of Obligate Autotrophy in Blue-Green Algae and Thiobacilli

An interpretation of obligate autotrophy in both physiological and evolutionary terms has been developed and patterns suggest that the tricarboxylic acid cycle is blocked at the level of alpha-ketoglutarate oxidation.

Enzymes of Carbohydrate Metabolism in Thiobacillus species

The data suggest that NAD-linked isocitrate dehydrogenase activity in thiobacilli is involved in biosynthetic reactions, and is apparently the major route of glucose dissimilation in this organism.

Sulfolobus: A new genus of sulfur-oxidizing bacteria living at low pH and high temperature

Sulfolobus apparently has no close relationship with any previously described bacteria, either heterotrophic or autrotrophic, and may be an important geochemical agent in the production of sulfuric acid from sulfur in high temperature hydrothermal systems.

Studies on thiobacillus denitrificans

Experiments with T. denitrificans have shown that this bacterium cannot develop in media devoid of ammonium salts, and that iron is required for growth, and CO2 assimilation has been established.

Activity of sulphur-oxidizing microorganisms in some Australian soils

The percentage oxidation of sulphur and the activity of Thiobacillus thiooxidans in a red-brown earth and a chernozem were followed at monthly intervals over a period of a year, but no obvious

The incorporation of acetate by the chemoautotroph Thiobacillus neapolitanus strain C

  • D. Kelly
  • Biology
    Archiv für Mikrobiologie
  • 2004
Clinical cultures of Thiobacillus neapolitanus strain C assimilate 14C-labelled acetate and aspartate indicate glutamate synthesis from α-ketoglutarate formed by reactions of the tricarboxylic acid cycle, and functions as a glutamate-synthesising system using oxaloacetate derived solely from carbon dioxide fixation.

Sulfide and thiosulfate-oxidizing bacteria in anoxic marine basins

Comparison of the metabolic capabilities of the isolates during growth in sulfide and thiosulfate media with chemical parameters measured in the Black Sea and Cariaco Trench waters suggests that the biological oxidation of thios sulfurate is the rate-limiting step in the oxidative turnover of sulfur compounds in the basins.

Regulation of Glucose Metabolism in Thiobacillus intermedius

It is concluded that the Entner-Doudoroff pathway performs an energetic role in glucose metabolism by T. intermedius with the pentose shunt and Embden-Meyerhof pathways functioning mainly in biosynthesis.

Regulation of citrate synthase activity in strict and facultatively autotrophic Thiobacilli.

  • B. F. Taylor
  • Biology
    Biochemical and biophysical research communications
  • 1970