Graphical abstract_Revised_sm

a digram of a stretch cell is shown at the bottom with myosin pulling on stress fibers in the cell. A "plus Dia1" panel on the top left shows intact fibers attached to proteins in the cell membrane with green actin recruited to elongate the stress fiber. A "minus Dia1" panel top right shows broken fibers with no recruitment of green actin.

a digram of a stretch cell is shown at the bottom with myosin pulling on stress fibers in the cell. A “plus Dia1” panel on the top left shows intact fibers attached to proteins in the cell membrane with green actin recruited to elongate the stress fiber. A “minus Dia1” panel top right shows broken fibers with no recruitment of green actin.