摘要
采集不同地点紫椴花和果实,通过系统预试验,检测出紫椴花及花蕾中含有较多的酚类、糖和甙类,还检测到黄酮类化合物、蛋白质、香豆素及强心甙等,在花蕾中还含有少量鞣质。紫椴果实中含有酚类、糖和甙类,还含有少量黄酮化合物、香豆素和鞣质。对不同纬度和海拔紫椴花和果实中可溶性糖、总酚和黄酮的含量进行分析,发现3类化学成分含量随纬度、海拔的变化存在一定的变化规律。除花中总酚含量差异不显著外,紫椴花和果实中其他化学成分含量随着纬度升高而降低,随着海拔升高而增高。紫椴花中可溶性糖含量明显高于果实,其他化学成分在花和果实中的含量接近。化学成分含量聚类分析与遗传距离聚类分析比较表明:化学成分含量变异在纬度上是不连续的,在海拔梯度上是连续的。
There were much hydroxybenzenes, polysaccharides, glucosides, flavone compounds found in flowers and the buds of Tilia amurensis, and proteins, coumarins and cardiac glycosides were also detected by systematically pre-testing the chemical composition. In addition, tannins were found in buds. Hydroxybenzenes, polysaccharides, glueosides, flavones, coumarins and tannins were detected in fruits. The contents of soluble sugars, total phenolies and flavones in flowers and fruits of T. amurensis at different latitudes and elevations were investigated, and the results indicated that the contents of the three compositions varied with the latitude and elevation. Except total phenolics in flowers, the contents of other compositions in flowers and fruits decreased with increasing latitude and elevation. The content of soluble sugars in flowers was obvious higher than that in fruits, while other chemical composition contents were similar in flowers to that in fruits. By comparing the clustering analysis on the chemical compositions and genetic distance analysis of T. amurensis, we found that the variations of the content of chemical compositions were discontinuous at latitudes gradients while they are continuous at different elevation gradients.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2009年第4期46-52,共7页
Scientia Silvae Sinicae
基金
黑龙江省科技攻关计划项目(GB07B303-03)
关键词
紫椴
化学成分
可溶性糖
黄酮
总酚
地理变异
Tilia amurensis
chemical composition
soluble sugars
flavone
total phenolic
geographic variation
