# 351: RHODOBACTER ADRIATICUS MEDIUM ## Main sol. 351 0.82 g Na acetate 0.1 g Yeast extract 0.06 g Na2S x 9 H2O 1 g K2HPO4 0.1 g CaCl2 x 2 H2O 0.5 g MgCl2 x 6 H2O 1 g NH4Cl 3 g NaHCO3 25 g NaCl 0.5 g Na-ascorbate 1 ml **Trace element solution (SLA)** 1000 ml Distilled water 1 ml **Vitamin solution (VA)** 1. Adjust pH to 7.0. 2. The medium may be prepared without the addition of Na acetate, yeast extract and Na2S x 9H2O and may be added to the sterile medium from sterile stock solutions. Prepare the medium under an atmosphere of N2. Dispense into screw capped or crimp top bottles fitted with a rubber septum. Sterilize at 121°C for 15 minutes in screw-caped bottles. After sterilization add 1.0 ml/l filter-sterilized vitamin solution (VA, see below). Incubate at 30°C at a light intensity of 1500 lux under anaerobic conditions. ## Trace element solution (SLA) 1.8 g FeCl2 x 4 H2O 250 mg CoCl2 x 6 H2O 10 mg NiCl2 x 6 H2O 10 mg CuCl2 x 2 H2O 70 mg MnCl2 x 4 H2O 100 mg ZnCl2 500 mg H3BO3 30 mg Na2MoO4 x 2 H2O 10 mg Na2SeO3 x 5 H2O 1000 ml Distilled water 1. Adjust pH to 2.0 - 3.0. ## Vitamin solution (VA) 10 mg Biotin 35 mg Nicotinic acid amide 30 mg Thiamine-HCl x 2 H2O 20 mg p-Aminobenzoic acid 10 mg Pyridoxal hydrochloride 10 mg Calcium pantothenate 5 mg Vitamin B12 100 ml Distilled water