Abstract
In the yeastsRhodotorula minuta andUstilago sphaerogena siderophores represent the main intracellular iron pool. We suggest a ferritin substituting function of these siderophores in addition to their role as iron transport agents. InRhodotorula transport and storage siderophore is the same compound whereas in Ustilago the iron-storage siderophore is ferrichrome. Besides siderophores, merely two iron metabolites can be observed. Other iron-requiring compounds are at least one order of magnitude less abundant in these yeasts. The ferrous metabolite has been detected in many other microbial systems and seems to be of general occurence and importance.
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Matzanke, B.F., Bill, E., Trautwein, A.X. et al. Siderophores as iron storage compounds in the yeastsRhodotorula minuta andUstilago sphaerogena detected by in vivo Mössbauer spectroscopy. Hyperfine Interact 58, 2359–2364 (1990). https://doi.org/10.1007/BF02398344
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DOI: https://doi.org/10.1007/BF02398344