ATCC medium: 2045 Heterotrophic acidophile medium
MgSO4 . 7H2O .................0.5 g
(NH4)SO4 .....................0.4 g
K2HPO4 .......................0.2 g
KCl..........................0.1 g
Yeast extract................0.25 g
FeSO4 . 7H2O ................10.0 mg
Distilled water..............1.0 L
Adjust to pH 2.0 with H2SO4. Filter-sterilize.