Photosystem II function under extreme low light and low temperatures; polar vs. temperate phytoplankton. - Poirier, Mackenzie; Ryan, Natasha M.; Osmers, Pomona; Plassart, Arthur; Guérin, Sébastien; Babin, Marcel; Berthold, Maximilian; Savoie, Mireille; Cvetkovska, Marina; Campbell, Douglas A. (Frontiers in Photobiology, 2026)