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motility

  • <span class="named-content genus-species" id="named-content-1">Cytophaga hutchinsonii</span> <em>gldN</em>, Encoding a Core Component of the Type IX Secretion System, Is Essential for Ion Assimilation, Cellulose Degradation, and Cell Motility
    Environmental Microbiology
    Cytophaga hutchinsonii gldN, Encoding a Core Component of the Type IX Secretion System, Is Essential for Ion Assimilation, Cellulose Degradation, and Cell Motility

    The widespread Gram-negative bacterium Cytophaga hutchinsonii uses a novel but poorly understood strategy to utilize crystalline cellulose. Recent studies showed that a T9SS exists in C. hutchinsonii and is involved in cellulose degradation and motility. However, the main components of the C. hutchinsonii T9SS and their functions are still unclear....

    Lijuan Gao, Zhiwei Guan, Peng Gao, Weican Zhang, Qingsheng Qi, Xuemei Lu
  • The Impact of pH on <span class="named-content genus-species" id="named-content-1">Clostridioides difficile</span> Sporulation and Physiology
    Physiology
    The Impact of pH on Clostridioides difficile Sporulation and Physiology

    Clostridioides difficile is an anaerobic bacterium that causes gastrointestinal disease. C. difficile forms dormant spores which can survive harsh environmental conditions, allowing their spread to new hosts. In this study, we determine how intestinally relevant pH conditions impact...

    Daniela Wetzel, Shonna M. McBride
  • Quantifying the Benefit of a Dedicated “Magnetoskeleton” in Bacterial Magnetotaxis by Live-Cell Motility Tracking and Soft Agar Swimming Assay
    Physiology
    Quantifying the Benefit of a Dedicated “Magnetoskeleton” in Bacterial Magnetotaxis by Live-Cell Motility Tracking and Soft Agar Swimming Assay

    In Magnetospirillum gryphiswaldense, magnetosomes are aligned in quasi-linear chains in a helical cell by a complex cytoskeletal network, including the actin-like MamK and adapter MamJ for magnetosome chain concatenation and segregation and MamY to position magnetosome chains along the shortest cellular axis of motility. Magnetosome chain positioning is assumed to be...

    Daniel Pfeiffer, Dirk Schüler
  • Effects of Sublethal Thymol, Carvacrol, and <em>trans</em>-Cinnamaldehyde Adaptation on Virulence Properties of <em>Escherichia coli</em> O157:H7
    Food Microbiology
    Effects of Sublethal Thymol, Carvacrol, and trans-Cinnamaldehyde Adaptation on Virulence Properties of Escherichia coli O157:H7

    The present study was conducted to evaluate changes in virulence properties in Escherichia coli O157:H7 adapted to sublethal essential oils (EOs). The results demonstrated reduced motility, biofilm-forming ability, and efflux pump activities in EO-adapted E. coli O157:H7, with no induction of...

    Wenqian Yuan, Hyun-Gyun Yuk
  • An Osmoregulatory Mechanism Operating through OmpR and LrhA Controls the Motile-Sessile Switch in the Plant Growth-Promoting Bacterium <em>Pantoea alhagi</em>
    Genetics and Molecular Biology
    An Osmoregulatory Mechanism Operating through OmpR and LrhA Controls the Motile-Sessile Switch in the Plant Growth-Promoting Bacterium Pantoea alhagi

    Many motile bacterial populations form surface-attached biofilms in response to specific environmental cues, including osmotic stress in a range of natural and host-related systems. However, cross talk between bacterial osmosensing, swimming, and biofilm formation regulatory networks is not fully understood. Here, we report that the pleiotropic regulator LrhA in Pantoea alhagi is involved in the regulation of flagellar motility...

    Shuyu Li, Hong Liang, Zhiyan Wei, Haonan Bai, Mengyun Li, Qiqi Li, Meng Qu, Xihui Shen, Yao Wang, Lei Zhang
  • Methods
    Tools for Rapid Genetic Engineering of Vibrio fischeri
    Karen L. Visick, Kelsey M. Hodge-Hanson, Alice H. Tischler, Allison K. Bennett, Vincent Mastrodomenico
  • Environmental Microbiology | Spotlight
    The Catabolite Repressor/Activator Cra Is a Bridge Connecting Carbon Metabolism and Host Colonization in the Plant Drought Resistance-Promoting Bacterium Pantoea alhagi LTYR-11Z
    Lei Zhang, Muhang Li, Qiqi Li, Chaoqiong Chen, Meng Qu, Mengyun Li, Yao Wang, Xihui Shen
  • Genetics and Molecular Biology
    An IgaA/UmoB Family Protein from Serratia marcescens Regulates Motility, Capsular Polysaccharide Biosynthesis, and Secondary Metabolite Production
    Nicholas A. Stella, Kimberly M. Brothers, Jake D. Callaghan, Angelina M. Passerini, Cihad Sigindere, Preston J. Hill, Xinyu Liu, Daniel J. Wozniak, Robert M. Q. Shanks
  • Genetics and Molecular Biology | Spotlight
    glnA Truncation in Salmonella enterica Results in a Small Colony Variant Phenotype, Attenuated Host Cell Entry, and Reduced Expression of Flagellin and SPI-1-Associated Effector Genes
    Philipp Aurass, Juliane Düvel, Susanne Karste, Ulrich Nübel, Wolfgang Rabsch, Antje Flieger
  • Open Access
    Environmental Microbiology | Spotlight
    CmeABC Multidrug Efflux Pump Contributes to Antibiotic Resistance and Promotes Campylobacter jejuni Survival and Multiplication in Acanthamoeba polyphaga
    Ana Vieira, Amritha Ramesh, Alan M. Seddon, Andrey V. Karlyshev

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Print ISSN: 0099-2240; Online ISSN: 1098-5336