231 results found
    1. Cell Biology
    2. Physics of Living Systems

    Interplay of cell dynamics and epithelial tension during morphogenesis of the Drosophila pupal wing

    Raphaël Etournay et al.
    Autonomous patterns of cell contraction in the context of localized apical extracellular matrix constraints specify tissue stresses that reshape the wing epithelium.
    1. Cell Biology
    2. Developmental Biology

    The interplay of stiffness and force anisotropies drives embryo elongation

    Thanh Thi Kim Vuong-Brender et al.
    Elongation of C. elegans embryos requires stiffness and force to be specifically oriented in a coordinated manner in different cells.
    1. Cell Biology
    2. Developmental Biology

    Anisotropic organization of circumferential actomyosin characterizes hematopoietic stem cells emergence in the zebrafish

    Mylene Lancino et al.
    Emergence of hematopoietic stem cells from an aortic component is a unique phenomenon of cell extrusion, with no equivalent in cell biology, and which is adapted to environmental constraints exerted by endothelial cells and hemodynamics forces.
    1. Cell Biology
    2. Physics of Living Systems

    Myosin II isoforms play distinct roles in adherens junction biogenesis

    Mélina L Heuzé et al.
    Myosin isoforms exhibit different functions in the formation of adherens junctions and the transmission of mechanical forces.
    1. Plant Biology

    KATANIN-dependent mechanical properties of the stigmatic cell wall mediate the pollen tube path in Arabidopsis

    Lucie Riglet et al.
    KATANIN1 in stigma papilla cells prevents disordered pollen tube growth and straightens pollen tube direction, allowing the pollen tube to find its correct path to the underlying female tissues.
    1. Cell Biology
    2. Developmental Biology

    Organ sculpting by patterned extracellular matrix stiffness

    Justin Crest et al.
    Direct measurement of finely patterned mechanical properties in a native basement membrane demonstrate how force asymmetries arising from this extracellular matrix, rather than from cells, can precisely sculpt a tissue.
    1. Physics of Living Systems
    2. Cell Biology

    Cortical flow aligns actin filaments to form a furrow

    Anne-Cecile Reymann et al.
    Compressing the actomyosin network by cortical flow causes filaments to align and form a constricting ring.
    1. Physics of Living Systems
    2. Computational and Systems Biology

    Global morphogenetic flow is accurately predicted by the spatial distribution of myosin motors

    Sebastian J Streichan et al.
    Epithelial tissue remodeling during Drosophila embryonic development is quantitatively described by a simple law relating myosin activity and cell flow.
    1. Physics of Living Systems
    2. Neuroscience

    Physical limits to magnetogenetics

    Markus Meister
    Recent reports on the ability of biological molecules to sense magnetic fields are found to be inconsistent with basic physical principles.
    1. Physics of Living Systems

    Epithelial colonies in vitro elongate through collective effects

    Jordi Comelles et al.
    Spontaneous elongation of epithelial colonies is related to the orientation of the mean nematic cell elongation field, as shown and tested with experiments and theory.

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