J Medium


Modification of Parker's J (or, Jansen) medium for Microcystis


Macro component 1 10 ml
Macro component 2 10 ml
CaCl2 2H2O solution (2.9 g/L) 1 ml
G9 trace metals 1 ml
Deionized water to 1 L

Final pH 8.3-8.5

Macro component 1:

NaNO3 67 g
Na2HPO4 0.67 g
K2HPO4 3.8 g
Tricine 25 g
Deionized water to 1 L

pH 8.5-8.8

Macro component 2:

Na2EDTA 2H2O 4.4 g
MgSO4 7H2O 10 g
MgCl2 6H2O 5 g
FeCl3 6H2O 0.5 g
Deionized water to 1 L

pH 7.5

G9 trace metals:

H3BO3 3.25 g
MnSO4 H2O 1.5 g
ZnSO4 7H2O 0.3 g
(NH4)6Mo7O24 4H2O 0.08 g
CuSO4 5H2O 0.05 g
Co(NO3)2 6H2O 0.15 g
KI 0.01 g
Deionized water to 1 L



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