The function of antioxidant enzymes in increasing tolerance of sand plant against salt stress by strigolactone application

Pancratium maritimumL. (sea daffodil) is distributed throughout the Mediterranean Sea, the Black Sea and the Caspian Sea and Atlantic Ocean along saline and sandy soils. The aim of the study is to determine the function of antioxidant enzymes in increasing the level of tolerance to salinity by application of strigolactone (SL) prior to exposure to high salt environment conditions of sand tumbler with medical preserve and tourism activities that are endangered. Synthetic strigolactone, GR24, (1 ml/seedling) was applied at different concentrations (0, 10, 20 μM) to 28 days old seedlings by sprayed. One week after GR24 application (35 days fidelere), salt application was made by dissolving in 0, 150, 300 mM NaCl in Hoagland nutrient solution. The morphology of sea daffodil andSOD, CAT and POX activity and their isozymes and thecontents of TBARS and H2O2 were determined in 10 days after the application of salt stress. According to the results, it was determined that the GR24 pre-application had the potential to increase the tolerance level by stimulating the antioxidant defense system of the sea daffodil plants in the salt environment conditions.