Table 2.

Comparison of rates of Fe(II) production in Fe(III)-reducing enrichment cultures with Fe(II) concentrations in Lake Kasin sediment

Fe(III)-reducing enrichment cultures	Cell numbersb,c	Fe(II) production ratesd [μmoles Fe(II) ml−1 day−1]	μmoles Fe(II)b
Halobaculum gomorrense relatives	1.86 × 105	0.01	28
Desulfosporosinus spp.	7.13 × 104	0.02
Bacilli (containing Bacillus alkalidiazotrophicusa)	5.48 × 105	0.06

^aCulture originates from sediment of salt Lake Baskunchak, southern Russia.

^bPer g dry sediment of 0- to 10-cm composite sample from Kasin sediment.

^cDetermined by qPCR with primers “Hgomorr,” “Desulfosp.,” and “Bacilli.”

^dIn the enrichment cultures.