Sea bass slc11a2-α and slc11a2-β expression under experimental infection, in the (A) liver, (B) spleen and (C) head kidney. Values are expressed as mean fold change ± S.D. (n = 5). Samples were collected at 24, 48, 72 and 96 hours post-infection with Photobacterium damselae (1.0 × 105 CFU/fish). β-actin was used as the housekeeping gene. Differences from the control group were considered significant at *p < 0.05.