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Many biological processes involve the action of molecular motors thatinteract with the cell cytoskeleton. Some processes, such as the transport ofcargoes is achieved mainly by the action of individual motors. Other, such ascell motility and division, require the cooperative work of many motors.Collective motor dynamics can be quite complex and unexpected. One beautifulexample is the bidirectional ("back and forth") motion of filaments which isinduced when the motors within a group exert forces in opposite directions.This review tackles the puzzle emerging from a recent experimental work inwhich it has been shown that the characteristic reversal times of thebidirectional motion are practically independent of the number of motors. Thisresult is in a striking contradiction with existing theoretical models thatpredict an exponential growth of the reversal times with the size of thesystem. We argue that the solution to this puzzle may be the crosstalk betweenthe motors which is mediated by the elastic tensile stress that develops in thecytoskeleton track. The crosstalk does not directly correlate the attachmentand detachment of the motors, which work independently of each other. However,it highly accelerates their detachments by making the detachment rates systemsize dependent.

Crosstalk between non-processive myosin motors mediated by the actin filament elasticity