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    1. Evolutionary Biology

    Antibacterial gene transfer across the tree of life

    Jason A Metcalf et al.
    Parallel horizontal gene transfer has spread a bacteriolytic gene family to all domains of life, and has bestowed a niche-transcending adaptation in recipients that must deploy antibacterial molecules to survive in a bacterial world.
    1. Microbiology and Infectious Disease

    Kin cell lysis is a danger signal that activates antibacterial pathways of Pseudomonas aeruginosa

    Michele LeRoux et al.
    The death of bacterial kin cells releases a danger signal that activates a posttranscriptional response in surviving cells, resulting in the rapid elaboration of interbacterial competition factors.
    1. Plant Biology

    Phosphatidylcholines from Pieris brassicae eggs activate an immune response in Arabidopsis

    Elia Stahl et al.
    Plants detect the presence of phospholipids in eggs from a herbivorous insect and trigger innate immunity.
    1. Microbiology and Infectious Disease

    An ECF-type transporter scavenges heme to overcome iron-limitation in Staphylococcus lugdunensis

    Angelika Jochim et al.
    An ECF-type transporter serves as broad-spectrum heme iron scavenger and allows an opportunistic pathogen to use multiple eukaryotic hemoproteins to overcome nutritional iron-limitation.
    1. Microbiology and Infectious Disease

    Bacterial symbiont subpopulations have different roles in a deep-sea symbiosis

    Tjorven Hinzke et al.
    Physiological differentiation during symbiosis leads to division of labor between smaller and larger cells in an uncultured bacterial tubeworm symbiont population and results in remarkable metabolic diversity and complexity.
    1. Structural Biology and Molecular Biophysics

    Structure of bacterial phospholipid transporter MlaFEDB with substrate bound

    Nicolas Coudray et al.
    Structure of MlaFEDB ABC transporter with substrate bound in the outward-open pocket of MlaE provides mechanistic insights into lipid transport within the Gram-negative bacterial cell envelope.
    1. Biochemistry and Chemical Biology

    Inter-membrane association of the Sec and BAM translocons for bacterial outer-membrane biogenesis

    Sara Alvira et al.
    The protein translocation apparatus of the inner- (Sec) and outer-membrane (BAM) interact to form a trans-periplasmic super-complex capable of long-range, PMF-dependent conformational changes to facilitate efficient outer-membrane protein maturation.
    1. Evolutionary Biology

    Resurrection of a global, metagenomically defined gokushovirus

    Paul C Kirchberger, Howard Ochman
    Isolation of a gokushovirus capable of lysogenizing enterobacteria challenges previous notions about the biology of the most prolific phages within the Microviridae and facilitates experimental study in a model organism.
    1. Structural Biology and Molecular Biophysics

    The structure of the endogenous ESX-3 secretion system

    Nicole Poweleit et al.
    The structure of the endogenous ESX-3 secretion system reveals a highly coordinated inner membrane complex and suggests a mechanism for the regulated secretion of ESX substrates.
    1. Genetics and Genomics
    2. Stem Cells and Regenerative Medicine

    Cell-type diversity and regionalized gene expression in the planarian intestine

    David J Forsthoefel et al.
    Application of laser-capture microdissection to planarian intestinal tissue provides a new tool for analysis of tissue-specific gene expression in flatworms, and a new resource to advance investigations of gastrointestinal regeneration.