Nir Keren is the Bernice and Aaron Beare Professor of Environmental Plant Physiology at the Hebrew University of Jerusalem. His research group deals with the interaction of photosynthetic organisms with natural environmental conditions. His lab is currently working on two aspects of this problem (a) the transport, storage and assembly of transition metals into photosynthetic catalysts (b) Elucidating the biophysical principles of energy and electron transport in photosynthetic systems. Nir Keren