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Main sol. J421

Internal Solution-ID: S4156

Equipment needed: Filter
Compound Amount Unit Conc. [g/L] Conc. [mM]
MJ(-N) synthetic seawater 1000 ml - -
NaNO3 1 g 0.99 11.649
Na2S2O3 x 5 H2O 1 g 0.99 3.989
NaHCO3 1 g 0.99 11.786
Trace vitamins 10 ml - -
Sulfur
(powder)
3 g 2.97 92.619
1 Mix ingredients except sulfur, adjust pH to 6.5 - 7.0 with NaOH and filter-sterilize. Steam sulfur for 3 hr on each of 3 successive days. Distribute the medium into culture vessels (e.g., 20 ml in 120 ml serum bottles) containing sulfur under a H2-CO2 (4:1, v/v) gas mixture, and seal with butyl rubber stoppers. Pressurize the inoculated bottles to 300 kPa H2-CO2 (4:1, v/v).
2 Comment: Adjust final pH to 7.0 (for strain JCM 12458) or 6.5 (for strain JCM 12459).
J421 MMJHS MEDIUM