Characterization and identification of mycosporines-like compounds in cyanolichens. Isolation of mycosporine hydroxyglutamicol from Nephroma laevigatum Ach.

► An optimized technique for the purification of mycosporines and MAAs in lichens. ► Detection and identification of mycosporines using HPTLC and -HPLC-DAD-MS. ► Lichens appear to be a great reservoir of mycosporines. ► Mycosporines and MAAs are investigated in cyanolichens series. ► Mycosporine hydroxyglutamicol is here described for the first time.