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Main sol. 813b

Internal Solution-ID: S1652

Equipment needed: Hungate tubes Filter Autoclave Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
KH2PO4 0.2 g 0.199 1.465
MgCl2 x 6 H2O 0.1 g 0.1 0.49
NH4Cl 1.0 g 0.997 18.639
KCl 0.2 g 0.199 2.675
Na2SO4 5.0 g 4.985 35.096
NaCl 2.0 g 1.994 34.121
Trace element solution SL-10 1.0 ml - -
Selenite-tungstate solution 1.0 ml - -
Yeast extract 1.0 g 0.997 -
Sodium resazurin
(0.1% w/v)
0.5 ml 5.0e-4 0.002
Na2CO3 3.5 g 3.49 32.924
Na2S x 9 H2O 0.5 g 0.499 2.076
Na-L-lactate 2.0 g 1.994 -
Wolin's vitamin solution (10x) 1.0 ml - -
Distilled water 1000.0 ml - -
1 Dissolve ingredients (except carbonate, sulfide, lactate, and vitamins) and sparge medium with 100 % N2 gas for 30 - 45 min to make it anoxic. Add and dissolve carbonate and sulfide, then adjust pH to 8.8 - 9.0, dispense under 100% N2 gas atmosphere into Hungate-type tubes or serum vials and autoclave. Before use add lactate and vitamins (sterilized by filtration) from sterile anoxic stock solutions prepared under 100% N2 gas.
813b DESULFONATRONUM LACUSTRE MEDIUM