Changes in Amylase During Germination and Early Seedling Growth of Mung Bean [Vigna Radiata (L.) Wilczek] Under Different Salts

Amylase activity and the isoenzymes of amylase were studied in different parts of germinating mung bean grown under treatment with NaCl, KC1, Na₂SO₄ and K₂SO₄. These treatments resulted in the decrease in amylase activity in the cotyledons, whereas, in embryo axis, roots and leaves, an increase was recorded. The increase in activity was more under chloride salts than sulphate ones. The isoenzymic pattern of amylase remains the same in roots and leaves of the plants grown under different salts except that the appearence of one isoenzyme was delayed in leaves. However, in embryo axis, the higher concentration of salts resulted in the decrease in number of isoenzymes.