Barclay R, Ratledge C
Zentralbl Bakteriol Mikrobiol Hyg A. 1986 Aug;262(2):203-7. doi: 10.1016/s0176-6724(86)80021-9.
Mycobactins and exochelins from mycobacteria formed complexes with many heavy metals in the absence of iron. Although many of these complexes affected the growth of M. tuberculosis and M. avium in laboratory culture medium and in serum the complexes were not stable enough in the presence of iron, which displaced the metal ion, to be of value as specific antimycobacterial agents.
分枝杆菌产生的分枝菌素和外排铁载体在无铁情况下能与多种重金属形成复合物。尽管这些复合物中的许多在实验室培养基和血清中会影响结核分枝杆菌和鸟分枝杆菌的生长，但在有铁存在时，这些复合物不够稳定，铁会取代金属离子，因此它们作为特异性抗分枝杆菌药物并无价值。
