[Influence of carbon sources on the development of Thermus ruber at different temperatures].
The obligate thermophilic bacterium Thermus ruber was found to grow better at 55-65 degrees C on media containing organic acids rather than sugars as a sole source of carbon. In these conditions, the morphology of the cells changes: they are rod-shaped whereas, during growth on lactose which is the best carbon source as compared to other sugars, the cells have the shape of rods in the first hours of growth but later acquire the shape of long threads. Malate and pyruvate are the best carbon sources at 60-65 degrees C of growth; the biomass accumulated in this case is 1.5 times greater than on the medium containing lactose. Apparently, salts of organic acids, being more oxidized substrates as compared to sugars, are easier assimilated by the bacterium at higher temperatures when oxygen solubility in the medium decreases.
D000085:Acetates / Q000378:metabolism; D001419:Bacteria / Q000254:growth & development* / Q000378:metabolism; D007785:Lactose / Q000378:metabolism; D008293:Malates / Q000378:metabolism; D011773:Pyruvates / Q000378:metabolism; D013696:Temperature
D000085:Acetates; D008293:Malates; D011773:Pyruvates; D007785:Lactose
Vliianie istochnikov ugleroda na razvitie Thermus ruber pri raznykh temperaturakh