Plasma membrane-to-organelle communication in plant stress signaling

Intracellular compartments engage in extensive communication with one another, an essential ability for cells to respond and adapt to changing environmental and developmental conditions. The plasma membrane (PM), as the interface between the cellular and the outside media, plays a central role in the perception and relay of information about external stimuli, which needs to be ultimately addressed to the relevant subcellular organelles. Interest in PM-organelle communication has increased dramatically in recent years, as examples arise that illustrate different strategies through which information from the PM can be transmitted. In this review, we will discuss mechanisms enabling PM-to-organelle communication in plants, specifically in biotic and abiotic stress signaling.