%0 Journal Article %A Massad, George %A Arceneaux, Jean E. L. %A Byers, B. Rowe %T Acquisition of iron from host sources by mesophilic Aeromonas species %D 1991 %J Microbiology, %V 137 %N 2 %P 237-241 %@ 1465-2080 %R https://doi.org/10.1099/00221287-137-2-237 %I Microbiology Society, %X Summary The mesophilic Aeromonas species are opportunistic pathogens that produce either of the siderophores amonabactin or enterobactin. Acquisition of iron for growth from Fe-transferrin in serum was dependent on the siderophore amonabactin; 50 of 54 amonabactin-producing isolates grew in heat-inactivated serum, whereas none of 30 enterobactin-producing strains were able to grow. Most isolates (regardless of siderophore produced) used haem as a sole source of iron for growth; all of 33 isolates grew with either haematin or haemoglobin and 30 of these used haemoglobin when complexed to human haptoglobin. Mutants unable to synthesize a siderophore used iron from haem, suggesting that this capacity was unrelated to siderophore production. Some members of the mesophilic Aeromonas species have evolved both siderophore-dependent and -independent mechanisms for acquisition of iron from a host. %U https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-137-2-237