Phenylalanine ammonia-lyase activity (PAL) in leaves treated with FA was firstly increased and then decreased. The highest PAL activity was obtained after 6-12 h, which was 7.2-10.5-fold as much as control.
叶片中的苯丙氨酸解氨酶活性先增加,然后减少,6～12h活性最高,为对照的7.2～10.5倍。
参考来源 - 镰刀菌酸毒素对西瓜幼苗根细胞跨膜电位及叶细胞有关抗逆酶的抑制·2,447,543篇论文数据，部分数据来源于NoteExpress
不同时期叶面喷施硼酸降低了梨果石细胞含量，果实过氧化物酶、多酚氧化酶和苯丙氨酸解氨酶活性也低于对照，且幼果期处理效果最佳。
The contents of sclereid and activities of some enzymes, such as POD, PPO and PAL are decreased under the applications of H3BO3, and the effect of the application at young fruit stage is the best.
苯丙氨酸解氨酶（PAL）主要分布在果皮中，并随着果实成熟度的提高，其活性呈极显著下降趋势。感病果实的果皮中三种酶活性均比健康果皮高。
Phenylalanine ammonia-lyase (PAL) is distributed mainly in the peels, and activity of the enzymes decreased very obviously with the increase of fruit ripeness.
与抗病性相关酶类的活性，如苯丙氨酸解氨酶（PAL）、多酚氧化酶（PPO）活性均高于对照。
The activity of resistance-related enzymes, such as phenylalanine ammonia-lyase (PAL), polyphenol oxidase (PPO) and peroxidase (POD) were higher than that of control.
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