Luria-Bertani (LB) broth contained 10 g/L tryptone, 5 g/L yeast
extract and 10 g/L NaCl. Trace elements solution contained 10 g/L
FeSO47H2O, 2.25 g/L ZnSO47H2O, 2.25 g/L CuSO45H2O, 0.5 g/L
MnSO45H2O, 2 g/L CaCl2H2O, 0.3 g/L H3BO4, 0.1 g/L (NH4)6Mo7-
O24H2O.