Table 1

HCl-extractable Fe(II) and hydroxylamine-HCl-extractable Fe(III) contents of uninoculated media and cultures of Desulfosporosinus sp. strain GBSRB4.2 after 24 days of incubation

Anticipated Fe(II):Fe(III) ratioMean (SEM) concn (mM) of the indicated form of Fe in:
Uninoculated mediumInoculated medium after 24 days
HCl-extractable Fe(II)Hydroxylamine-HCl-extractable Fe(III)Total extractable FeaHCl-extractable Fe(II)Hydroxylamine-HCl-extractable Fe(III)Total extractable Fe
1 Fe(II):0 Fe(III)38 (±2)1 (±0.4)3925 (±1)1 (±0.7)26
3 Fe(II):1 Fe(III)26 (±3)11 (±3)3728 (±5)6 (±2)34
1 Fe(II):3 Fe(III)11 (±2)30 (±2)4111 (±2)10 (±3)21
0 Fe(II):1 Fe(III)0.1 (±0.09)38 (±1)381 (±0.4)16 (±5)17
  • a Total extractable Fe represents the sum of HCl-extractable Fe(II) and hydroxylamine-HCl-extractable Fe(III).