TABLE 1.

Substrate specificity for growth of strain A

Sole source of carbona	% Utilization after 3 days	Protein content in medium (μg/ml)
1,4-Dioxane	90	53
1,3-Dioxane	91	42
Tetrahydrofuran	96	78
Tetrahydropyran	89	39
s-Trioxane	90	25
18-Crown-6	40	61
2-Methyl-1,4-dioxane	25	52
2,3-Dimethyl-1,4-dioxane	32	56
2,3,5-Trimethyl-1,4-dioxane	32	20
2,3,5,6-Tetramethyl-1,4-dioxane	54	33
2-Hydroxymethyl-1,4-dioxane	17	5

^aA 0.034 M concentration of each chemical was added to the medium.