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Competition among Nasal Bacteria Suggests a Role for Siderophore-Mediated Interactions in Shaping the Human Nasal Microbiota

Stubbendieck, Reed M., May, Daniel S., Chevrette, Marc G., Temkin, Mia I., Wendt-Pienkowski, Evelyn, Cagnazzo, Julian, Carlson, Caitlin M., Gern, James E., Currie, Cameron R.·2019·Applied and Environmental Microbiology

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Abstract

Within the nasal cavity, interference competition through antimicrobial production is prevalent. For instance, nasal Staphylococcus species strains can inhibit the growth of other bacteria through the production of nonribosomal peptides and ribosomally synthesized and posttranslationally modified peptides. In contrast, bacteria engaging in exploitation competition modify the external environment to prevent competitors from growing, usually by hindering access to or depleting essential nutrients. As the nasal cavity is a nutrient-limited environment, we hypothesized that exploitation competition occurs in this system. We determined that Corynebacterium propinquum produces an iron-chelating siderophore, and this iron-sequestering molecule correlates with the ability to inhibit the growth of coagulase-negative staphylococci. Furthermore, we found that the genes required for siderophore production are expressed in vivo . Thus, although siderophore production by bacteria is often considered a virulence trait, our work indicates that bacteria may produce siderophores to compete for limited iron in the human nasal cavity.

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Metadata

Authors
Stubbendieck, R. M., May, D. S., Chevrette, M. G., Temkin, M. I., Wendt-Pienkowski, E., Cagnazzo, J., Carlson, C. M., Gern, J. E., & Currie, C. R.
Affiliations
  • Department of Bacteriology, University of Wisconsin—Madison, Madison, Wisconsin, USA
  • Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
Venue
Applied and Environmental Microbiology
Published
2019-05-15
Volume
85
Issue
10
ISSN
  • 0099-2240
  • 1098-5336
Cited by
93
References
19
Language
en
Licence
journals.asm.org/non-commercial-tdm-license (tdm)
Funders
  • HHS | NIH | National Institute of Allergy and Infectious Diseases (U19-AI109673-01)
  • HHS | NIH | National Heart, Lung, and Blood Institute (P01 HL070831)
  • National Library of Medicine training grant to the Computation and Informatics in Biology and Medicine Training Program (NLM 5T15LM007359)

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CoChat. (2026). Citation check: Competition among Nasal Bacteria Suggests a Role for Siderophore-Mediated Interactions in Shaping the Human Nasal Microbiota. https://app.cochat.ai/papers/10.1128/aem.02406-18
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Stubbendieck, R. M., May, D. S., Chevrette, M. G., Temkin, M. I., Wendt-Pienkowski, E., Cagnazzo, J., Carlson, C. M., Gern, J. E., & Currie, C. R. (2019). Competition among Nasal Bacteria Suggests a Role for Siderophore-Mediated Interactions in Shaping the Human Nasal Microbiota. Applied and Environmental Microbiology. https://doi.org/10.1128/aem.02406-18

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