9,079 results found
    1. Plant Biology

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

    Firas Bou Daher et al.
    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. Physics of Living Systems
    2. Developmental Biology

    Distinct mechanisms regulating mechanical force-induced Ca2+ signals at the plasma membrane and the ER in human MSCs

    Tae-Jin Kim et al.
    Deep penetration and transmission of mechanical force to regulate ER functions depends on not only the passive cytoskeletal support, but also the active actomyosin contractility, which is dispensable for mechanotransduction at the plasma membrane.
    1. Physics of Living Systems

    Somatosensory neurons integrate the geometry of skin deformation and mechanotransduction channels to shape touch sensing

    Alessandro Sanzeni et al.
    Nonlinear elasticity of skin tissues and somatosensory neural responses are combined to predict and test C. elegans processing of touch stimuli and modifications due to changes in the body mechanics.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanism of chiral proofreading during translation of the genetic code

    Sadeem Ahmad et al.
    Structural biology has elucidated the mechanism of a configuration-specific enzyme that decouples D-amino acids from the translational machinery and, therefore, is involved in the enforcement of homochirality during protein synthesis.
    1. Computational and Systems Biology
    2. Neuroscience

    Decoupling kinematics and mechanics reveals coding properties of trigeminal ganglion neurons in the rat vibrissal system

    Nicholas E Bush et al.
    Primary sensory neurons of the rat whisker system encode contact with objects in terms of the forces exerted on whiskers, rather than the induced whisker movements.
    1. Neuroscience

    Down regulation of vestibular balance stabilizing mechanisms to enable transition between motor states

    Romain Tisserand et al.
    Down regulation of the gain from the vestibular sensory sources prior to the initiation of movement is a motor control solution to overcome the reflex-stabilizing mechanisms to enable motion from a postural orientation.
    1. Physics of Living Systems

    Mechanical instability and interfacial energy drive biofilm morphogenesis

    Jing Yan et al.
    Mechanical instabilities are shown to underlie the development of bacterial biofilm morphology, suggesting an ancient origin for mechano-morphogenesis, which is known to drive developmental processes in tissues in higher organisms.
    1. Cell Biology

    Increasing β-catenin/Wnt3A activity levels drive mechanical strain-induced cell cycle progression through mitosis

    Blair W Benham-Pyle et al.
    Mechanicals forces and local (Wnt) signaling can synergize to increase β-catenin signaling and produce unique growth phenotypes.
    1. Physics of Living Systems

    Mechanics and kinetics of dynamic instability

    Thomas CT Michaels et al.
    A theoretical framework for the growth of microtubules quantifies the roles of geometry, mechanics, kinetics and randomness and provides a phase diagram for dynamic instability in these self-assembled polymers.
    1. Cell Biology
    2. Plant Biology

    Two mechanisms regulate directional cell growth in Arabidopsis lateral roots

    Charlotte Kirchhelle et al.
    In lateral roots, cells employ a novel pathway to cell edges to control directional growth, which acts independently of the leading paradigm of oriented deposition of cellulose microfibrils at faces.

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