was used. Approximately, 0.5 g leaves were grounded into powder with liquid nitrogen, then 1.5 mL 50 mmol L-1 potassium phosphate buffer (pH7.0) was added and homogenized
was used.Approximately, 0.5 g leaves were grounded into powder with liquid nitrogen, then 1.5 mL 50 mmol L-1potassium phosphate buffer (pH7.0) was added and homogenized