Fusicoccin receptors: Perception and transduction of the fusicoccin signal

Fusicoccin receptors are proteins that are widespread in plasma membrane of higher plants. They act as a perception system for the fungal metabolite fusicoccin, a toxin affecting plasma membrane transport by the stimulation of proton ATPase. FC represents a unique tool to elucidate the regulatory mechanisms underlying transport processes at the plasma membrane for its ability to elicit several hormone-like responses rapidly. This review will summarize the studies so far reported on localization, biochemical properties and purification of fusicoccin receptors and will also deal with more recent data on the role played by 14-3-3-like proteins in fusicoccin signalling.