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The nutritional selectivity of a siderophore-catabolizing bacterium
journal contribution
posted on 1993-12-01, 00:00 authored by R DeAngelis, Maria ForsythMaria Forsyth, D CastignettiThe ability of a siderophore-catabolizing bacterium to assimilate ferric ion was examined. While the bacterium utilizes the siderophore deferrioxamine B (DFB) as a carbon source, it was incapable of using the ferricion analogue (ferrioxamine B) as an iron source. It did, however, assimilate the ferric ion of the chelator ferric nitrilotriacetic acid and of the siderophore ferrirhodotorulic acid (ferriRA). Neither ferriRA nor its deferrated analog (RA), however, were capable of functioning as carbon sources for the bacterium. The microbe thus employs a nutritional selectivity with respect to these two siderophores. That is, it does not use the siderophore it employs as a carbon source (DFB) as an iron source nor does the siderophore utilized as an iron source, i.e. ferriRA, nor its deferrated analog (RA), serve as carbon sources for the organism.
History
Journal
BioMetalsVolume
6Issue
4Pagination
234 - 238Publisher
Kluwer Academic PublishersLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0966-0844eISSN
1572-8773Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
1993, Rapid Communications of Oxford LtdUsage metrics
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