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忍冬种子萌发期间ＰＡＬ活性呈不断提高趋势，并在胚根与子叶突破或脱离种应时出现两次高峰；氯原酸含量表现为持续提高，提高幅度不断加大。ＰＡＬ活性变化与氯原酸含量变化并不同步但有密切关系。笔者还测定了幼苗不同器官中的ＰＡＬ活性与氯原酸含量。
The activity of PAL in the seedlings of Lonicera japonica showed an increasing trend during the germination period, and there were two peaks when the radicles and cotyledons broke through or detached from the seedlings. The chlorogenic acid content showed a continuous increase, and the increase range increased continuously. Changes in PAL activity and changes in chlorogenic acid content are not synchronized but are closely related. The author also measured the PAL activity and chlorogenic acid content in different organs of seedlings.