PL
Zbadano in vitro wrażliwość na 13 naturalnych i syntetycznych chelatorów żelaza 79 szczepów rodzaju Enterococcus. Tylko 3 syntetyczne chelatory: 8-hydroksychinolina, wersenian dwusodowy (EDTA) i o-fenantrolina hamowały wzrost badanych enterokoków.
EN
A total of 79 strains of enterococci belonging to 10 species were tested for susceptibility to natural and synthetic iron chelators. All strains produced siderophores. These enterococci were susceptible to three synthetic iron chelators only: 8-hydroxyquinoline, disodium versenate (EDTA) and o-phenanthroline. They were resistant to all other synthetic chelators: ethylenediamine-di(o-hydroxyphenylacetic acid) (EDDHA), nitrilotriacetate, 2,2'-bipiridyl, salicylic acid 8-hydroxy-5-sulphonic acid and to all natural chelators: ovotransferrine, human apotransferrine, horse apoferritine, desferrioxamine B, ferrichrome and rhodotorulic acid. The relations between susceptibility/resistance, iron assimilation and structure and stability constants of iron chelators were discussed.