307 results found
    1. Cell Biology
    2. Developmental Biology

    The interplay of stiffness and force anisotropies drives embryo elongation

    Thanh Thi Kim Vuong-Brender, Martine Ben Amar ... Michel Labouesse
    Elongation of C. elegans embryos requires stiffness and force to be specifically oriented in a coordinated manner in different cells.
    1. Plant Biology

    Anisotropic growth is achieved through the additive mechanical effect of material anisotropy and elastic asymmetry

    Firas Bou Daher, Yuanjie Chen ... Siobhan A Braybrook
    Growing upwards in the young seedling is controlled by two cooperative mechanical mechanisms: cellulose orientation in inner tissues and differential elasticity in epidermal cells.
    1. Computational and Systems Biology
    2. Developmental Biology

    Why plants make puzzle cells, and how their shape emerges

    Aleksandra Sapala, Adam Runions ... Richard S Smith
    Puzzle-shape cells in the epidermis of many plants form due to a development constraint based on mechanical forces.
    1. Cell Biology
    2. Developmental Biology

    Organ sculpting by patterned extracellular matrix stiffness

    Justin Crest, Alba Diz-Muñoz ... David Bilder
    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. Cell Biology
    2. Physics of Living Systems

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

    Raphaël Etournay, Marko Popović ... Suzanne Eaton
    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

    Cytokinesis in vertebrate cells initiates by contraction of an equatorial actomyosin network composed of randomly oriented filaments

    Felix Spira, Sara Cuylen-Haering ... Daniel W Gerlich
    Asymmetric tension increase along the cell equator promotes self-organization of actomyosin into a partially aligned network during cytokinetic cleavage furrow ingression of vertebrate cells.
    1. Cell Biology
    2. Physics of Living Systems

    Force propagation between epithelial cells depends on active coupling and mechano-structural polarization

    Artur Ruppel, Dennis Wörthmüller ... Martial Balland
    Combining micropatterning, traction force microscopy, and optogenetics, it is shown that epithelial cells actively respond to mechanical signals from neighboring cells.
    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, Matthew F Lefebvre ... Boris I Shraiman
    Epithelial tissue remodeling during Drosophila embryonic development is quantitatively described by a simple law relating myosin activity and cell flow.
    1. Plant Biology

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

    Lucie Riglet, Frédérique Rozier ... Thierry Gaude
    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. Plant Biology

    Subcellular and supracellular mechanical stress prescribes cytoskeleton behavior in Arabidopsis cotyledon pavement cells

    Arun Sampathkumar, Pawel Krupinski ... Elliot M Meyerowitz
    In the Arabidopsis epidermis, the internal mechanical stress of a cell competes with the external stress to control microtubule behavior, providing a framework to understand the mechanical feedbacks that underlie plant morphogenesis.

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