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Hypothetical metabolic map in U. prolifera under lowdose and shortterm UV-B. Enhanced photorespiration, phenolic compounds metabolism, and the AsA−GSH cycle may contribute to explain the balancing damage mechanism in U. prolifera under UVBR stress. The red line represents the enhancement of a metabolic pathway. The blue line indicates that the metabolic pathway is inhibited. Black line, no supporting data on metabolic pathways. Enzymes are represented by italic letters.
