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    1. Ecology
    2. Computational and Systems Biology

    Community-level cohesion without cooperation

    Mikhail Tikhonov
    A model of purely competitive ecological dynamics is shown to be equivalent to adaptive evolution of a single individual, suggesting a new way to formalize the "superorganism" metaphor.
    1. Ecology
    2. Evolutionary Biology

    Does diversity beget diversity in microbiomes?

    Naïma Madi et al.
    Microbiomediversity favors further diversity in a positive feedback that is strongest in lower-diversity biomes but which plateaus as niches are increasingly filled in higher-diversity biomes.
    1. Ecology
    2. Evolutionary Biology

    Emergence of trait variability through the lens of nitrogen assimilation in Prochlorococcus

    Paul M Berube et al.
    In the context of an organism's ecology, physiology, and macroevolutionary history, inheritance and gene loss can yield emergent patterns of trait variability that give the appearance of gene acquisition.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Point of View: Biological causal links on physiological and evolutionary time scales

    Amit Karmon, Yitzhak Pilpel
    Increasing awareness that many causal links in biology might be bi-directional could overcome biases and improve scientific reasoning.
    1. Microbiology and Infectious Disease

    The human gut and groundwater harbor non-photosynthetic bacteria belonging to a new candidate phylum sibling to Cyanobacteria

    Sara C Di Rienzi et al.
    Melainabacteria, a candidate phylum related to Cyanobacteria, has been identified in gut and sediment samples by genomic analysis.
    1. Neuroscience

    Spatial readout of visual looming in the central brain of Drosophila

    Mai M Morimoto et al.
    In the Drosophila central brain, synaptic connectivity extracts visual-spatial information from the axons of looming sensitive LC6 neurons that terminate in a glomerulus with minimal retinotopy.
    1. Ecology
    2. Microbiology and Infectious Disease

    Transparent soil microcosms for live-cell imaging and non-destructive stable isotope probing of soil microorganisms

    Kriti Sharma et al.
    Two optically transparent substrates enable the exploration of the ecophysiology and spatiotemporal organization and activities of bacteria and fungi within heterogeneous soil-like environments.
    1. Neuroscience

    Dopaminergic and opioidergic regulation during anticipation and consumption of social and nonsocial rewards

    Sebastian Korb et al.
    Administration of dopamine and opioid receptor antagonists resulted in reduced reward anticipation (effort and increased negative facial reactions), but only administration of opioid antagonists resulted in reduced liking (facial reactions).
    1. Cancer Biology
    2. Physics of Living Systems

    Dissecting the immunosuppressive tumor microenvironments in Glioblastoma-on-a-Chip for optimized PD-1 immunotherapy

    Xin Cui et al.
    A biomimetic and patient-specific Glioblastoma-on-a-Chip microphysiological system provides an avenue for personalized screening of PD-1 immunotherapy and novel combinational therapies that maximize therapeutic outcomes in Glioblastoma patients.
    1. Neuroscience

    Vascular control of the CO2/H+-dependent drive to breathe

    Colin M Cleary et al.
    Understanding how loss of CO2/H+ vascular reactivity affects respiratory control may facilitate development of treatments for breathing problems in this population.