From Twitter https://twitter.com/drsekula: RT @SMUDedman: .@SMU @SMUChemistry prof solves key mystery about the chemistry of how plants tell time via @smuresearch http://blog.smu.edu/research/2017/05/15/study-solves-mystery-of-how-plants-use-sunlight-to-tell-time-via-cell-protein-signaling/?platform=hootsuite