Question

Describe the effect of various amounts of GA3 upon starch digestion ( in reference to Gibberellic Acid and Starch Hydrolysis

in Germinating Barley Seeds)

Answer 1

In germinating seeds energy is served by hydrolysis of starch in endosperm by gibberelic acid. Initially gibberelic acid produced in the embryo of barley seeds will be transported to the endosperm where it enhances the transcription and translation of alpha amylase gene . For the translation process storage proteins in the aleuron layer cells serves as source of amino acid and than amylase enzyme converts the starch into maltose. This can be utilised in beer brewing industry by incubating barley seeds in GA3 solution. Different concentration of gibberelic acid treatment different concentrations of maltose production