[Composition of a nutrient medium for the continuous cultivation of Thiobacillus ferrooxidans].

Thiobacillus ferrooxidans was found to require the following biogenous elements for constructing its biomass: phosphorus, 14 +/- 2; magnesium, 2 +/- 0.5; potassium, 5 +/- 1; nitrogen, 100 +/- 10 (milligrams per gram of dry biomass). It was shown that the concentrations of biogenous elements in the growth medium, which did not limit the biosynthesis, did not exceed 5 divided by 10 mg per litre for all of the studied elements.