Journal of Microbiology

  • 제43권1호
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  • Pages.54-61
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  • 2005
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  • 1225-8873(pISSN)
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  • 1976-3794(eISSN)
한국미생물학회 (The Microbiological Society of Korea)
권호 표지

Growth of Stahylococcus aureus with Defective Siderophore Production in Human Peritoneal Dialysate Solution

  • Park, Ra-Young (Research Center for Resistant Cells, Chosun University Medical School) ;
  • Sun, Hui-Yu (Research Center for Resistant Cells, Chosun University Medical School) ;
  • Choi, Mi-Hwa (Research Center for Resistant Cells, Chosun University Medical School) ;
  • Bae, Young-Hoon (Department of Biology, Chosun University Medical School) ;
  • Shin, Sung-Heui- (Research Center for Resistant Cells, Chosun University Medical School)
  • 발행 : 2005.02.28
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초록

In this study, we attempted to determine the effects of iron-availability and the activity of the bacterial iron-uptake system (IUS) on the growth of Staphylococcus aureus in human peritoneal dialysate (HPD) solution. A streptonigrin-resistant S. aureus (SRSA) strain, isolated from S. aureus ATCC 6538, exhibited defective siderophore production, thereby resulting in ineffective uptake of iron from low iron-saturated transferrin. The growth of both strains was stimulated in HPD solution supplemented with FeCl_3 and holotransferrin, but growth was inhibited in HPD solution which had been supplemented with apotransferrin and dipyridyl. The SRSA strain grew less robustly than did its parental strain in both iron-supplemented HPD solution and regular HPD solution. These results indicate that iron-availability and siderophore-mediated IUS activity in particular, the ability to produce siderophores and thus capture iron from low iron-saturated transferrin play critical roles in the growth of S. aureus in HPD solution. Our results also indicated that the possibility of using iron chelators as therapeutic or preventive agents warrants further evaluation.

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