Increased sensitivity to ultraviolet radiation in nitrogen‐limited dinoflagellates: Photoprotection and repair

Nitrogen (N) limitation significantly increased the sensitivity of photosynthesis to inhibition by ultraviolet radiation (UV) in two estuarine dinoflagellates, Akashiwo sanguinea (= Gymnodinium sanguineum ) and Gymnodinium (= Gyrodinium ) cf. instriatum . Biological weighting functions (BWFs) and the kinetics of photosynthetic response to UV indicated that the main mechanism for the increase in sensitivity was less efficient repair. A decrease...