Ion micro-distribution in varying aged leaves in salt-treated cucumber seedlings

In our experiment on salt stress, the cytoplasm and chloroplasts accumulated similar Na+ concentration in leaves of different ages, in two cucumber cultivars differing in salt tolerance. This weak sub-cellualr ion distribution ability may be an important reason for cucumber being vulnerable to salt stress. The effect of salt stress on subcellular Na+ distribution in different aged leaves in the two cucumber cultivars seedlings.(Means±SE、n = 3)CV(Cell Wall), V(Vacuole), CY(Cytoplasm), CH(Chloroplast). L3: function leaf; L5: new leaf. a,b: comparison of significant difference between the same age leaves; A,B:comparison of significant difference between the different aged leaves.116