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[Animal systemic iron sources utilized in vitro by staphylococci]
P Lisiecki1, M Sobiś-Glinkowska, J Mikucki
1Zakład Mikrobiologii Farmaceutycznej, Akademii Medycznej w Lodzi.
Medycyna Doswiadczalna I Mikrobiologia
|January 1, 1997
Summary
Staphylococcal strains can use various animal iron sources when iron is limited. Clinical isolates demonstrate a broader utilization of these iron sources.
Area of Science:
- Microbiology
- Biochemistry
- Infectious Diseases
Context:
- Staphylococcal bacteria require iron for growth and survival.
- Iron is often scarce in host environments, necessitating efficient acquisition strategies.
- Bacterial iron acquisition mechanisms involve siderophores and direct utilization of host iron sources.
Purpose:
- To investigate the ability of staphylococcal strains to utilize diverse animal-derived iron sources under iron-restricted conditions.
- To determine if the spectrum of utilized iron sources correlates with staphylococcal species or their siderophore systems.
- To compare the iron utilization capabilities of strains isolated from clinical versus non-clinical sources.
Summary:
- Staphylococcal strains demonstrated in vitro utilization of various animal iron sources, including hemoglobin, hemin, lactoferrin, transferrin, ovotransferrin, myoglobin, ferritin, and cytochrome C.
- The ability to utilize these iron sources was independent of the staphylococcal species or the type of siderophore system employed.
- Strains isolated from clinical materials exhibited a wider range of utilized animal iron sources compared to other strains.
Impact:
- Highlights the metabolic flexibility of staphylococci in acquiring essential iron from host environments.
- Suggests that clinical staphylococcal isolates may possess enhanced iron scavenging capabilities, potentially contributing to their pathogenicity.
- Provides insights into bacterial iron metabolism relevant to understanding staphylococcal infections and developing targeted therapies.