L-Asparagine (anhydrous)* 1 g Glycerol 10 g K2HPO4 1 g Trace element solution** 1 ml The pH of this solution is about 7.0 - 7.4. Do not adjust if it is within this range. Agar 20 g Distilled water 1000 ml *Grind asparagine and dilute in a small volume of distilled water acidified with HCl. **Trace element solution: FeSO4.7H2O 0.1 g MnCl2.4H2O 0.1 g ZnSO4.7H2O 0.1 g Distilled water 100 ml