Thiobacillus acidophilus sp. nov.; isolation and some physiological characteristics
| Autor: | Roger Guay, Marvin Silver |
|---|---|
| Rok vydání: | 1975 |
| Předmět: |
DNA
Bacterial Guanine Thiobacillus acidophilus Phase contrast microscopy Citric Acid Cycle Immunology Biology Applied Microbiology and Biotechnology Microbiology law.invention Cytosine law Genetics Microscopy Phase-Contrast Amino Acids Molecular Biology Cell-Free System Temperature General Medicine Hydrogen-Ion Concentration Thiobacillus Isolation (microbiology) C content Aerobiosis Culture Media Glucose Sulfurtransferases Carbohydrate Metabolism Spectrophotometry Ultraviolet Oxidoreductases Ultracentrifugation |
| Zdroj: | Canadian Journal of Microbiology. 21:281-288 |
| ISSN: | 1480-3275 0008-4166 |
| DOI: | 10.1139/m75-040 |
| Popis: | After a brief exposition to glucose, Thiobacillus acidophilus was isolated from a culture of iron-grown T. ferrooxidans. Physicochemical analysis of its DNA showed a G + C content of 62.9–63.2%. The new isolate grows best at 25–30 °C and at pH 3.0. Growth is possible between pH 1.5 and 6.0. Thiobacillus acidophilus is apparently strictly aerobic. Ammonium salts are the only suitable source of nitrogen. The bacterium is a facultative autotroph. In addition to elemental sulfur, it obtains energy from organic compounds such as D-glucose, D-galactose, D-fructose, D-mannitol, D-xylose, D-ribose, D-arabinose, L-arabinose, sucrose, sodium citrate, malic acid, dl-aspartic acid, and dl-glutamic acid.Thiobacillus acidophilus possesses the key enzymes of the tricarboxylic acid (TCA) cycle including NAD- and NADP-linked isocitric dehydrogenase and α-ketoglutarate dehydrogenase, and the key enzymes of the hexose monophosphate pathway (glucose-6-phosphate and 6-phosphogluconate dehydrogenase, and fructose 1,6-diphosphate aldolase). NADH oxidase has been found in particulate fraction of extracts. Rhodanese and thiosulfate oxidase have also been detected. |
| Databáze: | OpenAIRE |
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