# 1081a: HORIKOSHI-1 MEDIUM WITH 10% NaCl ## Main sol. 1081a 1000 ml **Main sol. 1081** 100 g NaCl 1. Use medium 1081 (HORIKOSHI-1 MEDIUM), but add 100 g NaCl. ## Main sol. 1081 10 g Glucose 5 g Polypeptone 5 g Yeast extract 1 g K2HPO4 0.2 g MgSO4 x 7 H2O 15 g Agar 900 ml Distilled water 100 ml Na2CO3 (10 %) 1. After autoclaving, aseptically add 100 ml of a 10% Na2CO3 solution to the medium. Check final pH to be about 10.0.