A comparison of Fe bioavailability and binding of a catecholate siderophore with virus-mediated lysates from the marine bacterium Vibrio alginolyticus PWH3a

► Studies on virus-mediated cell lysates show no siderophores are present. ► A catecholate siderophore was isolated from Vibrio alginolyticus. ► Voltammetry suggests the siderophore was consistent with typical L1 Fe-binding ligands. ► Materials in cell lysates were consistent with L2 Fe-binding ligands. ► Fe in lysates was more rapidly assimilated than Fe bound to the siderophore.