Abstract:
:In order to investigate whether the iron acquisition mechanisms of Staphylococcus aureus are induced by iron restriction in vitro, we examined S. aureus ATCC 6538 for production of siderophore and expression of transferrin-binding protein (SA-tbp) in normal or deferrated brain heart infusion broth (BHI). Siderophore production was earlier and greater in the deferrated BHI. The SA-tbp, detected by ligand blot assay, was expressed only in the deferrated BHI. When human transferrin was added to the deferrated BHI, siderophore production was later and lower than when transferrin was not present. In conclusion, both iron acquisition mechanisms of S. aureus were found to be iron-repressible and via both of them, human transferrin-bound iron was utilized for growth under iron-restricted condition.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Lim Y,Shin SH,Lee SI,Kim IS,Rhee JHdoi
10.1111/j.1574-6968.1998.tb13020.xsubject
Has Abstractpub_date
1998-06-01 00:00:00pages
19-24issue
1eissn
0378-1097issn
1574-6968pii
S0378-1097(98)00143-8journal_volume
163pub_type
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