# 389: ANNWOODIA MEDIUM


## Main sol. 389

100	ml	**Solution A**	
870	ml	**Solution B**	
10	ml	**Solution C**	
20	ml	**Solution D**	

1. Autoclave solutions A, B and C and filter sterilize solution D. To complete the medium combine sterile solutions when cool.


## Solution A

7.9	g	Na2HPO4 x 2 H2O	
1.5	g	KH2PO4	
100	ml	Distilled water	

1. Adjust to pH 7.6.


## Solution B

0.4	g	NH4Cl	
0.1	g	MgSO4 x 7 H2O	
15	g	Agar, for solid medium	
870	ml	Distilled water	


## Solution C

10	ml	**Trace element solution**	


## Solution D

5	g	Na2S2O3 x 5 H2O	
20	ml	Distilled water	


## Trace element solution

50	g	Na2-EDTA	
11	g	ZnSO4 x 7 H2O	
7.34	g	CaCl2 x 2 H2O	
2.5	g	MnCl2 x 4 H2O	
0.5	g	CoCl2 x 6 H2O	
0.5	g	(NH4)6Mo7O24 x 4 H2O	
5	g	FeSO4 x 7 H2O	
0.2	g	CuSO4 x 5 H2O	
11	g	NaOH	
1000	ml	Distilled water	

1. Dissolve EDTA in distilled water and adjust pH to 7.0 using 2 N NaOH; then add other compounds. Adjust pH of final solution to 6.0 with NaOH.