New facultative Thiobacillus and a reevaluation of the heterotrophic potential of Thiobacillus novellus.
A new facultatively autotrophic Thiobacillus has been isolated in pure culture. The general physiological characteristics of the organism are described together with a redescription of Thiobacillus novellus. The new isolate differs from T. novellus in its ability to grow heterotrophically at faster rates and on a greater range of organic compounds. It can be transferred readily between autotrophic and heterotrophic conditions. It can grow anaerobically by nitrate respiration on a number of organic compounds, but not on thiosulfate. Some problems in the nomenclature and taxonomy of the thiobacilli are discussed with reference to the new isolate.
D002474:Cell-Free System; D003470:Culture Media; D003580:Cytochromes / Q000032:analysis; D004269:DNA, Bacterial / Q000032:analysis; D005561:Formates / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D008365:Manometry; D008854:Microscopy, Electron; D009584:Nitrogen / Q000378:metabolism; D010084:Oxidation-Reduction; D010088:Oxidoreductases / Q000378:metabolism; D013053:Spectrophotometry; D009626:Terminology as Topic; D013855:Thiobacillus / Q000032:analysis / Q000201:enzymology / Q000254:growth & development / Q000302:isolation & purification* / Q000378:metabolism; D013885:Thiosulfates / Q000378:metabolism
D003470:Culture Media; D003580:Cytochromes; D004269:DNA, Bacterial; D005561:Formates; D013885:Thiosulfates; D010088:Oxidoreductases; D009584:Nitrogen