4,525 results found
    1. Plant Biology

    PCH1 integrates circadian and light-signaling pathways to control photoperiod-responsive growth in Arabidopsis

    He Huang et al.
    A conserved, circadian-regulated protein alters light perception in plants to regulate daily growth in response to changing photoperiod.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Switching of metabolic programs in response to light availability is an essential function of the cyanobacterial circadian output pathway

    Anna M Puszynska, Erin K O'Shea
    The circadian clock of Synechococcus elongatus PCC7942 schedules the activity of the transcription factor RpaA, which controls key events in carbon metabolism that contribute to cell fitness in conditions mimicking the natural environment.
    1. Physics of Living Systems

    Dynamic density shaping of photokinetic E. coli

    Giacomo Frangipane et al.
    The concentration of motile bacteria, expressing a light-driven proton pump, can be precisely controlled in space and time by spatially modulating their swimming speeds with a structured light pattern.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Natural changes in light interact with circadian regulation at promoters to control gene expression in cyanobacteria

    Joseph Robert Piechura et al.
    Cyanobacteria cope with both predictable day/night changes and natural fluctuations in light during the day by adjusting the expression dynamics of circadian-clock-controlled genes via a network of transcriptional regulators.
    1. Neuroscience

    Chemotaxis: Cider vinegar rules

    Ronald L Calabrese
    Experiments in wind tunnels have shed light on the rules that govern how flies respond when they detect odors.
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    1. Neuroscience

    Rapid categorization of natural face images in the infant right hemisphere

    Adélaïde de Heering, Bruno Rossion
    Diverse photographs of human faces against their natural background trigger a specific electrical response in the right hemisphere of the brain in infants aged 4–6 months.
    1. Developmental Biology

    A gonad-expressed opsin mediates light-induced spawning in the jellyfish Clytia

    Gonzalo Quiroga Artigas et al.
    Gamete release in the jellyfish Clytia is mediated by an opsin photopigment expressed in neurosecretory cells of the gonad ectoderm, which release an oocyte maturation hormone in response to light.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    DNA damage shifts circadian clock time via Hausp-dependent Cry1 stabilization

    Stephanie J Papp et al.
    The circadian clock proteins, cryptochrome 1 (Cry1) and 2 (Cry2), evolved from bacterial light-activated DNA repair enzymes to detect DNA damage and coordinate the gene expression response.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Near-infrared photoactivatable control of Ca2+ signaling and optogenetic immunomodulation

    Lian He et al.
    A near-infrared light-stimulable optogenetic platform enables remote and wireless manipulation of calcium signaling and immune responses both in vitro and in vivo to achieve tailored function.
    1. Neuroscience

    Neuronal connectome of a sensory-motor circuit for visual navigation

    Nadine Randel et al.
    Three-dimensional mapping of the neural circuitry that controls movement of a marine worm in response to light provides insights into the evolution of complex visual systems.

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