[Studies on siderophore exchange properties between staphylococci and various species of gram-positive and gram-negative bacteria].
The ability of iron utilizing by means of staphylococcal siderophores by bacteria belonging to genera: Acinetobacter, Corynebacterium, Curtobacterium, Clavibacter, Bacillus and Mycobacterium was investigated. The staphylococcal donor strains (18 species) used in these experiments were characterized by the ability to utilize siderophores produced by various strains belonging to aforenamed genera. The utilization of staphylococcal siderophores was studied on agar media in which minimally effective concentrations of ethylenediaminedi-ortho-hydroxyphenylacetic acid (EDDA) were used to inhibit indicator strains. Test colonies (staphylococcal) were applied to the surface of the media to determine whether the indicator organisms could obtain the required iron for growth by utilizing chelators from the test colony. The growth inhibition by EDDA of most strains from the Acinetobacter rods and from the coryneform-organisms (plant pathogen) genera, and strains from the species: B. subtilis, M. phlei, M. smegmatis, M. fortuitum was reversed by staphylococcal siderophores. None of the staphylococcal strains investigated, had the ability to exchange siderophores with strains from the species: C. pseudodiphtheriticum, Corynebacterium ANF group, B. megaterium, M. vaccae, M. chitae and M. parafortuitum.
Szarapińska-Kwaszewska
J
J
Zakład Mikrobiologii Farmaceutycznej Katedry Mikrobiologii, Akademii Medycznej w Lodzi.
Mikucki
J
J
D004492:Edetic Acid / Q000031:analogs & derivatives / Q000494:pharmacology; D006090:Gram-Negative Bacteria / Q000378:metabolism*; D006094:Gram-Positive Bacteria / Q000378:metabolism*; D017262:Siderophores / Q000378:metabolism* / Q000494:pharmacology; D013045:Species Specificity; D013210:Staphylococcus / Q000378:metabolism*
D017262:Siderophores; C026058:EDDA; D004492:Edetic Acid