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

    Dynamic curvature regulation accounts for the symmetric and asymmetric beats of Chlamydomonas flagella

    Pablo Sartori, Veikko F Geyer ... Jonathon Howard
    The self-organised beat of cilia and flagella is dynamically regulated by curvature.
    1. Cell Biology

    A bioactive peptide amidating enzyme is required for ciliogenesis

    Dhivya Kumar, Daniela Strenkert ... Betty A Eipper
    Analysis of Chlamydomonas, planaria and mice reveals a novel and unanticipated role for a peptide amidating enzyme in primary and motile ciliary assembly through effects on post-Golgi trafficking.
    1. Physics of Living Systems

    Length regulation of multiple flagella that self-assemble from a shared pool of components

    Thomas G Fai, Lishibanya Mohapatra ... Ariel Amir
    In the microbe Chlamydomonas reinhardtii, a disassembly rate which depends on flagellar length provides an effective method to regulate the length of its two flagella.
    1. Structural Biology and Molecular Biophysics

    Three-dimensional flagella structures from animals’ closest unicellular relatives, the Choanoflagellates

    Justine M Pinskey, Adhya Lagisetty ... Daniela Nicastro
    Cryo-electron microscopy reveals previously undescribed structural features of choanoflagellate flagella and provides new insights into flagellar evolution.
    1. Physics of Living Systems

    The biomechanical role of extra-axonemal structures in shaping the flagellar beat of Euglena gracilis

    Giancarlo Cicconofri, Giovanni Noselli, Antonio DeSimone
    The 'spinning lasso' geometry of Euglena's beating flagellum is revealed, and a model based on the antagonistic forces exchanged by axoneme and paraflagellar rod is proposed to explain its emergence.
    1. Physics of Living Systems

    Strong confinement of active microalgae leads to inversion of vortex flow and enhanced mixing

    Debasmita Mondal, Ameya G Prabhune ... Prerna Sharma
    Coupling between cell motility and strong confinement alters the force generators that cause flow fields to change their handedness and lead to enhanced mixing.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Coordination of two opposite flagella allows high-speed swimming and active turning of individual zoospores

    Quang D Tran, Eric Galiana ... Xavier Noblin
    Coordinated actions of two opposite flagella control speed and change direction of plant pathogen Phytophthora zoospores, in which the anterior flagellum is the main motor to generate thrust and spontaneously switch from reciprocal beating to breaststrokes to reorient its body.
    1. Cell Biology
    2. Plant Biology

    Photosynthetic sea slugs induce protective changes to the light reactions of the chloroplasts they steal from algae

    Vesa Havurinne, Esa Tyystjärvi
    Slug chloroplasts avoid damage to photosynthesis by maintaining an oxidized electron transfer chain with the help of oxygen-sensitive electron acceptors.
    1. Computational and Systems Biology

    Evolution of cell size control is canalized towards adders or sizers by cell cycle structure and selective pressures

    Felix Proulx-Giraldeau, Jan M Skotheim, Paul François
    An evolutionary algorithm is used to build gene networks implementing cell size control, and suggests multiple ways for evolution to first build sizers and turn them into adders depending on evolutionary constraints.
    1. Cell Biology

    WDR90 is a centriolar microtubule wall protein important for centriole architecture integrity

    Emmanuelle Steib, Marine H Laporte ... Virginie Hamel
    Centriole integrity is ensured by the connection between the inner scaffold and microtubule triplets through POC16/WDR90 proteins.

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