硝酸盐的吸收和氮素代谢相关酶的共同作用可以调控贮藏蛋白质的积累与降解。
The accumulation and degradation of protein can be affected by the multi-action of nitrate absorbing and the enzyme which related with N metabolism directly.
在氮素代谢方面，增施氮肥使小麦旗叶中硝酸还原酶活性增加，旗叶中可溶性蛋白含量降低，可明显延缓小麦叶片的衰老；
Soluble protein in flag leaf, which implies senescence of flag leaf, tented to decline with the increase of nitrogen fertilization.
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