3.1.4 Effects of Salinity on H2O2 Content
H2O2 contents gradually increased inS. hieraciifolia and T. parvula while salt concentration was increasing. H2O2 contents and the rates of the increases observed in T. parvula were higher than those of S. hieraciifolia . For example, there were 2.4-fold increase in T. parvula and 1.8-fold in S. hieraciifolia in the 300 mM NaCl treated shoots as compared with non-saline conditions. Likewise, there were 8.3-fold and 4.4-fold enhancements in H2O2 contents of the shoots treated with 450 mM NaCl in T. parvula and S. hieraciifolia , respectively (Table 1).