# 1593a: Cyanobacteria Medium BG11+ (TES buffered) ## Main sol. 1593a 2.3 g TES 5 ml NaNO3 (300 g/l stock solution) 10 ml Mg(SO4) x 7 H2O (7.5 g/l stock solution) 10 ml CaCl2 x 2 H2O (3.6 g/l stock solution) 10 ml Na3-citrate x 2 H2O (0.6 g/l stock solution) 10 ml Na-EDTA x 2 H2O (0.1 g/l stock solution) 2 ml K2HPO4 x 3 H2O (20 g/l stock solution) 2 ml Na2CO3 (10 g/l stock solution) 1 ml Fe(NH4)citrate (6.0 g/l stock solution) 1 ml **Trace metal mix** 1. Adjust pH to 8.0. 2. Make up to 1000 ml with MilliQ water. 3. Autoclave at 121 °C for 20 min. 4. After Cooling, add the following filter sterilized components: 1 ml Vitamin B12 (0.02 g/l stock solution) ## Trace metal mix 2.86 g H3BO3 1.81 g MnCl2 x 4 H2O 0.22 g ZnSO4 x 7 H2O 0.39 g Na2MoO4 x 2 H2O 10 ml CuSO4 x 5 H2O (8.0 g/l stock solution) 10 ml Co(NO3)2 x 6 H2O (5.0 g/l stock solution) 1. Make up to 1000 ml with MilliQ water.