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iron

  • Open Access
    Identification of Key Determinants of <span class="named-content genus-species" id="named-content-1">Staphylococcus aureus</span> Vaginal Colonization
    Research Article | Host-Microbe Biology
    Identification of Key Determinants of Staphylococcus aureus Vaginal Colonization

    Staphylococcus aureus is an opportunistic pathogen able to cause a wide variety of infections in humans. Recent reports have suggested an increasing prevalence of MRSA in pregnant and postpartum women, coinciding with the increased incidence of MRSA infections in neonatal intensive care units (NICUs) and newborn nurseries. Vertical transmission from mothers to infants...

    Liwen Deng, Katrin Schilcher, Lindsey R. Burcham, Jakub M. Kwiecinski, Paige M. Johnson, Steven R. Head, David E. Heinrichs, Alexander R. Horswill, Kelly S. Doran
  • Open Access
    Pulmonary Iron Limitation Induced by Exogenous Type I IFN Protects Mice from <span class="named-content genus-species" id="named-content-1">Cryptococcus gattii</span> Independently of T Cells
    Research Article | Host-Microbe Biology
    Pulmonary Iron Limitation Induced by Exogenous Type I IFN Protects Mice from Cryptococcus gattii Independently of T Cells

    Cryptococcus neoformans and Cryptococcus gattii cause fatal infection in immunodeficient and immunocompetent individuals. While these fungi are sibling species, C. gattii infects very few AIDS patients, while...

    Michael J. Davis, Shannon Moyer, Elizabeth S. Hoke, Edward Sionov, Katrin D. Mayer-Barber, Dan L. Barber, Hongyi Cai, Lisa Jenkins, Peter J. Walter, Yun C. Chang, Kyung J. Kwon-Chung
  • Open Access
    Superoxide Dismutase and Pseudocatalase Increase Tolerance to Hg(II) in <span class="named-content genus-species" id="named-content-1">Thermus thermophilus</span> HB27 by Maintaining the Reduced Bacillithiol Pool
    Research Article | Applied and Environmental Science
    Superoxide Dismutase and Pseudocatalase Increase Tolerance to Hg(II) in Thermus thermophilus HB27 by Maintaining the Reduced Bacillithiol Pool

    Thermus thermophilus is a deep-branching thermophilic aerobe. It is a member of the Deinococcus-Thermus phylum that, together with the Aquificae, constitute the earliest branching aerobic bacterial lineages; therefore, this organism serves as a model for early diverged bacteria (R. K. Hartmann, J. Wolters, B. Kröger, S. Schultze, et al.,...

    Javiera Norambuena, Thomas E. Hanson, Tamar Barkay, Jeffrey M. Boyd
  • Open Access
    <em>Streptomyces</em> Volatile Compounds Influence Exploration and Microbial Community Dynamics by Altering Iron Availability
    Editor's Pick Research Article | Molecular Biology and Physiology
    Streptomyces Volatile Compounds Influence Exploration and Microbial Community Dynamics by Altering Iron Availability

    Microbial growth and community interactions are influenced by a multitude of factors. A new mode of Streptomyces growth—exploration—is promoted by interactions with the yeast Saccharomyces cerevisiae and requires the emission of trimethylamine (TMA), a pH-raising volatile compound. We show...

    Stephanie E. Jones, Christine A. Pham, Matthew P. Zambri, Joseph McKillip, Erin E. Carlson, Marie A. Elliot
  • Open Access
    Dopamine Is a Siderophore-Like Iron Chelator That Promotes <em>Salmonella enterica</em> Serovar Typhimurium Virulence in Mice
    Editor's Pick Research Article | Host-Microbe Biology
    Dopamine Is a Siderophore-Like Iron Chelator That Promotes Salmonella enterica Serovar Typhimurium Virulence in Mice

    Here we show that dopamine increases bacterial iron incorporation and promotes Salmonella Typhimurium growth both in vitro and in vivo. These observations suggest the potential hazards of pharmacological catecholamine administration in patients with bacterial sepsis but also suggest that the inhibition of bacterial iron acquisition might provide a useful approach to antimicrobial therapy.

    Stefanie Dichtl, Egon Demetz, David Haschka, Piotr Tymoszuk, Verena Petzer, Manfred Nairz, Markus Seifert, Alexander Hoffmann, Natascha Brigo, Reinhard Würzner, Igor Theurl, Joyce E. Karlinsey, Ferric C. Fang, Günter Weiss
  • Open Access
    Research Article
    Extracellular Electron Transfer Powers Enterococcus faecalis Biofilm Metabolism
    Damien Keogh, Ling Ning Lam, Lucinda E. Doyle, Artur Matysik, Shruti Pavagadhi, Shivshankar Umashankar, Pui Man Low, Jennifer L. Dale, Yiyang Song, Sean Pin Ng, Chris B. Boothroyd, Gary M. Dunny, Sanjay Swarup, Rohan B. H. Williams, Enrico Marsili, Kimberly A. Kline
  • Open Access
    Research Article
    The Capacity of Mycobacterium tuberculosis To Survive Iron Starvation Might Enable It To Persist in Iron-Deprived Microenvironments of Human Granulomas
    Krishna Kurthkoti, Hamel Amin, Mohlopheni J. Marakalala, Saleena Ghanny, Selvakumar Subbian, Alexandra Sakatos, Jonathan Livny, Sarah M. Fortune, Michael Berney, G. Marcela Rodriguez
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