Fig. 3From: Turn on the Mtr pathway genes under pLacI promoter in Shewanella oneidensis MR-1a Confirmation of plasmids in wild type of MR1, mtrA, mtrC and mtrCAB by 0.8% agarose gel. b Heme staining activity of cells harboring of mtrA, mtrC and mtrCAB genes. Cell harvest at 24 h and concentrated to OD 4. P and S mean pellet and supernatant. c Left bars are ferric reductase activity and right bars are biomass of wild type of MR1, mtrA, mtrCAB and mtrCBack to article page