Institut de Biologie du Développement Marseille

Concurrent synchronization and covariation in upper extremity joint angles during a reciprocal aiming task

Abstract The ecological-dynamical approach holds that movement is self-organized, implying a circular causality between the kinematics of the end-effector and the coordination of degrees of freedom (DOF) into synergies. Yet, how this circular causality manifests itself in redunda...

CRB3 and ARP2/3 regulate cell biomechanical properties to set epithelial monolayers for collective movement

Several cellular processes during morphogenesis, tissue healing or cancer progression involve collective cell migration. To set the cells for motion, there is an initial breaking of organization of the epithelial tissue that modifies the epithelial phenotype and axis of polarity....

A Novel Striated Membrane Contact Site in Vestibular Hair Cells

The mammalian vestibular system has two types of sensory receptor hair cells (HCs), each with different neurotransmission mechanisms. Type II HCs use ribbon synapses to transmit neurotransmitters like glutamate to bouton terminals of afferent neurons. Type I HCs are nearly engulf...

Micro-scale organization of non-cyanobacterial diazotrophs drives nitrogen fixation in marine particles

Abstract Dinitrogen (N₂) fixation supplies reactive nitrogen to the ocean, and non-cyanobacterial diazotrophs (NCDs) are increasingly recognized as contributors. Marine particles have been theorized as hotspots where low oxygen and labile carbon favor N₂ fixation by NCDs, but emp...