Sheng Luan is Chancellor's Professor and Chair in the Department of Plant and Microbial Biology at the University of California, Berkeley. Luan Laboratory studies how plants perceive and respond to extracellular signals through modifying their developmental and physiological programs. Studies in Luan Lab have identified a new molecular network for calcium signal transduction in plants. Downstream of these early signaling events, plants respond and adapt to environmental changes by regulating the biochemical processes including those at the plasma membrane, vacuolar membrane, and in the chloroplasts.