玉溪烟叶

玉溪烟叶中PAL活性高于普洱，其产物中的多酚类物质同样高于普洱。

In Yuxi tobacco leaves , the PAL activity and polyphenol contents were higher than that in Puer tobacco leaves .

结果如下：1.玉溪烟叶中SS基因表达水平高于普洱烟叶，SPS和SS活性也较高。

The results showed that : 1 . SS gene expression level , SS and SPS activity were in tobacco leaves of Yuxi than .

玉溪烟叶中的蔗糖含量高于普洱烟叶，而淀粉、葡萄糖、果糖含量低于普洱，这是由SPS和SS活性差异造成的。

Sucrose contents in tobacco leaves of Yuxi were higher than that in Puer , but the starch , glucose and fructose contents were lower , which were produced by the differences of SS and SPS activity .

这两个关键酶的活性差异，造成了两地烟叶碳素流向和分配的各自特点，很可能玉溪烟叶碳素更多的流向纤维素类物质的合成，普洱烟叶碳素更多用于淀粉的积累。

It caused respective characteristics of the flow and distribution of the carbon in tobacco leaves . The carbon in Yuxi tobacco leaves flowed more towards to the synthesis of cellulose , and that in Puer tobacco leaves flowed more towards to the accumulation of starch . 2 .

一系列衰老相关基因（GS.GDH）的表达差异和关键酶（GS、GOGAT、GDH）活性差异，造成了玉溪和普洱烟叶氮素代谢的各自特点。

The differences on the expression of senescence-associated genes ( GS , GDH ) and the activity of the key enzymes ( GS , GOGAT , GDH ) caused respective characteristics of nitrogen metabolism between Yuxi and Puer tobacco leaves .