NaCl and CuSO4 treatments trigger distinct oxidative defence mechanisms in Nicotiana plumbaginifolia L

absorption acide ascorbique acido ascorbico antioxidantes antioxidants antioxydant ascorbic acid bouture catalasa catalase cuttings defence mechanisms enzymic activity esquejes gene genes glutathion glutathione glutathione peroxidase glutation glutation peroxidasa ion iones ions mecanismos de defensa nicotiana nicotiana plumbaginifolia peroxidases photoinhibition photosynthese photosynthesis prolina proline racine reciclaje recycling roots superoxide dismutase superoxyde dismutase