Keith A MottKeith Mott (a biologist) and David Peak (a physicist) are collaborating to investigate the functioning of stomata in intact leaves with emphasis on information processing.  We are currently exploring role of vapor-phase hydration of the guard cells in the stomatal response to humidity and temperature.  We are also investigating the possibility of a vapor-phase signal from the mesophyll to the guard cells that is involved in the stomatal responses to light and CO2