Light intensity influences variations in the structural and physiological traits in the leaves of Iris pumila L.

Ambient light significantly influences the structural and physiological characteristics of Iris pumila leaves.A random sample of Iris clones native to an exposed site orly happy camper at the Deliblato Sands, Serbia was partially covered with a neutral screen that transmitted 35% of daylight, so that each clone experienced reduced and full sunlight at the same time.The sun-exposed leaves were significantly thicker, had greater stomatal density, exhibited higher lipid peroxidation, increased activities of amundsen field slacks herre SOD, APX, CAT enzymes and higher contents of non-enzymatic antioxidants (anthocyanins and phenols) and water deficit relative to shade-leaves.The activities of GR, GPX, and GST enzymes was unaffected by the irradiance level.