TABLE 2.

Enumeration of SRB in sediments of Kulunda soda lakes in southeastern Siberia, Russia

Lake no.	Depth (cm)	Total [Na+] (M) in medium	No. of SRB
			Heterotrophica	Autotrophicb
10KL-05	0-5	0.6	105	105
	6-15	0.6	105	104
	16-25	0.6	102	102
25KL-05	0-1	0.6	106	104
	1-9	0.6	NDc	103
18KL	0-4	0.6	106	ND
	4-12	0.6	105	ND
18KL-05	0-2	4.0	103	104
	2-6	4.0	102	102
	6-18	4.0	102	ND
22KL-05	0-10	4.0	105	105
23KL-05	0-2	4.0	106	ND

^aGrown on a mixture of lactate and butyrate.

^bGrown on a mixture of H₂ and CO₂.

^cND, not determined.