烟草苷

The Klason lignin level of anti-4CL-transformed tobacco was much lower than that of the control. The cellulose content increased in transgenic tobacco with UGPA constructs.We also obtain transgenic tobacco transformed with Acetobacter xylinum UGPase gene.

研究了木醋酸菌来源的UGPase基因与植物来源的UGPA基因在转基因烟草中的表达，测定了两种转基因烟草的尿苷二磷酸葡萄糖焦磷酸化酶的活性、木质素含量和纤维素含量。

Compared the lignin and cellulose level of these two kinds of transgenic tobacco, we found that the cellulose content increased and the lignin content deduced in transgenic tobacco transformed with Amorpha fruticosa UGPA constructs, both the cellulose content and the lignin content increased in transgenic tobacco transformed with Acetobacter xylinum UGPA constructs.

结果表明，两种转基因烟草的尿苷二磷酸葡萄糖焦磷酸化酶的活性均有明显提高；转紫穗槐UGPA基因的烟草纤维素含量有所提高，木质素含量略有降低，纤维素与木质素含量之大连理工大学博士学位论文比提高；而转木醋酸菌来源的UGPase基因的烟草木质素含量和纤维素含量均显著提高。

Chlorogenic acid,chrysatropic acid and rutin in tobacco were analyzed using high performance liquid chromatography/photodiode array deteciton.

用高效液相色谱-二极管阵列检测器建立了烟草中绿原酸、莨菪亭、芸香苷同时测定的方法。

The measurement of nicotine and its major metabolites cotinine and trans-3 -hydroxicotinine together with other minor metabolites (e.g., cotinine N-oxide, cotinine, and trans-3 -hydroxicotinine glucuronides) in conventional and nonconventional biological matrices has been used as a biomarker to assess the exposure to environmental tobacco smoke during childhood.

常规和非常规性生物基质内尼古丁、尼古丁主要代谢产物可替宁和反式-3-羟基可替宁及其他代谢产物（可替宁N-氧化物，可替宁和反式-3 –羟基可替宁葡萄糖苷酸）的检测可作为评价儿童期环境烟草烟雾暴露的一个生物标志物。

The volatiles existed at higher amounts in bound form than in free form. Compared with uncased tobaccos, free form volatiles showed a decrease after casing process, while bound volatiles showed an increase.

该研究结果对烟草香味成分分析、糖苷结合态香味物质的合成和应用、卷烟加香加料技术都具有参考价值，同时对优化工艺质量也有一定指导意义。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失