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    1. Cell Biology
    2. Neuroscience

    Hypoxia-induced metabolic stress in retinal pigment epithelial cells is sufficient to induce photoreceptor degeneration

    Toshihide Kurihara et al.
    Mouse models in which hypoxia can be genetically triggered in retinal pigmented epithelial cells show that hypoxia-induced metabolic stress alone can lead to photoreceptor atrophy/dysfunction.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Arabidopsis RNA processing factor SERRATE regulates the transcription of intronless genes

    Corinna Speth et al.
    Arabidopsis RNA processing factor SERRATE associates with the chromatin of intronless genes, which are usually expressed at low levels, to enhance polymerase II association.
    1. Microbiology and Infectious Disease

    Transcriptomic analysis reveals reduced transcriptional activity in the malaria parasite Plasmodium cynomolgi during progression into dormancy

    Nicole L Bertschi et al.
    Transcriptome profiling of malaria liver-stage parasites provides unprecedented knowledge on genes and pathways expressed in truly dormant hypnozoites and indicates that dormancy is associated with a switch in energy metabolism.
    1. Computational and Systems Biology

    Metabolic network percolation quantifies biosynthetic capabilities across the human oral microbiome

    David B Bernstein et al.
    A novel metabolic network analysis method enables large-scale computational predictions of biosynthetic capabilities across the human oral microbiome, revealing a unique cluster of fastidious microorganisms and potential metabolic interdependencies.
    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. Evolutionary Biology

    The genomes of polyextremophilic cyanidiales contain 1% horizontally transferred genes with diverse adaptive functions

    Alessandro W Rossoni et al.
    Horizontal gene transfer (HGT) analysis in polyextremophile red algae (Cyanidiales) provides explanations for the nonexistence of cumulative effects and eukaryotic pangenomes, and highlights differences between HGT and native genes.
    1. Ecology
    2. Plant Biology

    Cytokinin transfer by a free-living mirid to Nicotiana attenuata recapitulates a strategy of endophytic insects

    Christoph Brütting et al.
    Cytokinin-dependent manipulation of plant metabolism is a strategy employed not only by gallers and leaf-miners but also by a free-living insect, Tupiocoris notatus, which directly transfers cytokinins at feeding sites to manipulate its host plant.
    1. Ecology
    2. Evolutionary Biology

    Molecular basis of wax-based color change and UV reflection in dragonflies

    Ryo Futahashi et al.
    UV-reflective dragonfly wax is shown to consist of very long-chain methyl ketones and aldehydes, and a synthetic dragonfly wax spontaneously forms light-scattering fine structures with strong UV reflection.
    1. Evolutionary Biology

    Destructive disinfection of infected brood prevents systemic disease spread in ant colonies

    Christopher D Pull et al.
    Upon detecting a fatal infection using chemical cues, ants puncture the cuticle of sick brood and inject antimicrobial poison that disrupts the pathogen's life cycle and prevents it from reproducing, thus protecting the colony from disease.
    1. Evolutionary Biology

    Birds land reliably on complex surfaces by adapting their foot-surface interactions upon contact

    William RT Roderick et al.
    When landing, Pacific parrotlets exhibit stereotyped leg and wing dynamics regardless of perch diameter and texture, but foot and claw kinematics become surface-specific upon touchdown to successfully grasp the perch.