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. 2019 Nov 14;14(2):623–634. doi: 10.1038/s41396-019-0554-1

Table 1.

Incubation conditions for the substrate-turnover experiments with the cable bacteria enrichment culture

E-acceptora E-donora Reducing agent pH
8 mM NO3− 3 mM S0 0.7 mM Na2S 6.4
8 mM NO3− 3 mM S2O32− 0.7 mM Na2S 6.4
30 mM Fe(OH)3 3 mM S0 0.7 mM Na2S 6.4
30 mM Fe(OH)3 3 mM S2O32− 0.7 mM Na2S 6.4
3 mM S0 10 mM FeCl2 8.0
8 mM S2O32− 10 mM FeCl2 8.0

aIn the absence of nitrate and Fe(OH)3, S0 and S2O32− served as both electron donors and electron acceptors