TABLE 2.

Corrinoid-producing capacity of PfR7 grown in isolation with and without DMB and in the Dhc195/DvH/PfR7(+DMB) triculture

Culture	Corrinoid production (nmol/100 ml of culture)										PfR7 cell density (108 cells/100 ml of culture)	Corrinoid-producing capacity (nmol/108 cells)
	Cobalamin		[p-Cre]Cba		[Phe]Cba		Cbi		Total
	Cella	Supb	Cell	Sup	Cell	Sup	Cell	Sup	Cell	Sup
PfR7	0	0	0.21	0.025	0.10	0	3.0 × 10−3	0.010	0.31	0.035	0.40	0.86
PfR7(+DMB)	0.040	0.014	0.20	0.024	0.023	0	0.010	0.016	0.27	0.054	0.62	0.52
Dhc195/DvH/PfR7(+DMB)	0.088	3.5 × 10−3	0.25	0	0	0	0.012	0	0.35	3.5 × 10−3	0.27	1.3

^aBiomass-associated amount.

^bSupernatant-associated amount.