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    1. Physics of Living Systems

    A multiphase theory for spreading microbial swarms and films

    Siddarth Srinivasan et al.
    A multiphase hydrodynamic theory reveals that the dynamics of colony expansion in microbial swarms and biofilms are limited by the constraints of water and nutrient availability.
    1. Microbiology and Infectious Disease

    Heterogeneity in surface sensing suggests a division of labor in Pseudomonas aeruginosa populations

    Catherine R Armbruster et al.
    Subpopulations of polysaccharide producer and surface explorer cells play specialized roles in early Pseudomonas aeruginosa biofilm formation.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Mechanistic insight into the conserved allosteric regulation of periplasmic proteolysis by the signaling molecule cyclic-di-GMP

    Debashree Chatterjee et al.
    Structure-function analyses reveal the mechanistic underpinnings of inside-out transmembrane signaling that controls periplasmic proteolysis, and thereby biofilm formation, in bacteria and may be relevant in the context of other signaling proteins with similar control elements.
    1. Microbiology and Infectious Disease

    A serine sensor for multicellularity in a bacterium

    Arvind R Subramaniam et al.
    Biofilm formation by Bacillus subtilis relies on a sensing mechanism for the amino acid serine that does not depend on a dedicated protein or RNA.
    1. Microbiology and Infectious Disease

    Differential interaction forces govern bacterial sorting in early biofilms

    Enno R Oldewurtel et al.
    Differential physical interactions between bacteria in mixed microcolonies trigger cell sorting.
    1. Microbiology and Infectious Disease

    Strong inter-population cooperation leads to partner intermixing in microbial communities

    Babak Momeni et al.
    Simulations and experiments on systems containing two different populations of microorganisms show that interactions that benefit at least one of the populations can lead to communities with stable compositions, and that strong cooperation between two populations can lead to communities in which both populations are mixed together.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Coincidence detection and bi-directional transmembrane signaling control a bacterial second messenger receptor

    Richard B Cooley et al.
    Building on previous work (Chatterjee et al., 2014), the mechanism of coincidence detection in bacterial second messenger signaling across membranes is revealed at a molecular level, providing insight into the regulation of a conserved transmembrane receptor.
    1. Microbiology and Infectious Disease

    Quorum sensing controls Vibrio cholerae multicellular aggregate formation

    Matthew Jemielita et al.
    A quorum-sensing-controlled program of multicellularity, aggregation, is identified in Vibrio cholerae, which may be important for transitions between the marine niche and the human host.
    1. Genetics and Genomics

    Gene regulatory network plasticity predates a switch in function of a conserved transcription regulator

    Isabel Nocedal et al.
    Rapid evolutionary rewiring of the meiosis transcription network facilitated a switch in the function of a master regulator from regulating meiosis to regulating biofilm formation.
    1. Microbiology and Infectious Disease

    Transcriptome dynamics of the Myxococcus xanthus multicellular developmental program

    José Muñoz-Dorado et al.
    Investigation of global gene expression profiles during formation of the Myxococcus xanthus specialized biofilm reveals a genetic regulatory network that coordinates cell motility, differentiation, and secondary metabolite production.