岩溶生态环境条件下不同生境铁皮石斛多糖含量的比较研究  

Comparative study on Dendrobium officinale Polysaccharide Content at Different Habitats in Karstic Environment

作　　者：姜殿强[1] 刘再华[1] 申宏岗[1] 廖长君[2] 

机构地区：[1]中国地质科学院岩溶地质研究所国土资源部岩溶动力学重点实验室 [2]右江民族医学院,广西百色533000

出　　处：《中国岩溶》2007年第3期226-229,共4页Carsologica Sinica

基　　金：科技部国家科研院所社会公益研究专项(编号:2005DIB3J067);中国科学院知识创新工程重要方向项目(编号:kzcx2-yw-306)

摘　　要：利用苯酚-硫酸比色法测定取贵州茂兰喀斯特自然保护区中的野生(石生、树生)铁皮石斛及贵州茂兰乡缘铁皮石斛开发种植基地人工种植的铁皮石斛(棚生)的多糖含量。结果表明,石生铁皮石斛多糖含量为(27.26±0.14)%,树生铁皮石斛多糖含量为(26.74±0.16)%,棚生铁皮石斛多糖含量为(27.2±0.12)%,石生、树生和棚生铁皮石斛的多糖含量几乎相同。铁皮石斛多糖是主要的药用成份,因此认为可以考虑用棚生铁皮石斛替代日益濒危的石生、树生铁皮石斛作为珍贵中药材铁皮枫斗的源材料。通过长期野外监测发现,石生、树生和棚生铁皮石斛的温度、湿度和光照都非常接近,这也是铁皮石斛多糖含量相同的主要原因。The polysaccharide content of Dendrobium officinale was obtained using phenol-vitriolic colorimetry in Maolan Karstic Natural Reserve where natural Dendrobium officinale lived on rock and tree,; and Maolan Dendrobium officinale Exploiture Plantation Base where Dendrobium officinale was;artiflcially grown in greenhouse, respectively. The results show that the average polysaccharide content of Dendrobium offiaihale grown on rock was （27. 26±0. 14）%, （26. 74±0. 16）% grown on tree bark and （27.2±0. 12）% grown in greenhouse. The contents of polysaccharide among these Dendrobium officinales were almost the same. As the polysaccharide of Dendrobium officinale is the main medicinal ingredients, the Dendrobium officinale grown in greenhouse can substitute for the natural Dendrobium officinale grown on rock and tree bark as valuable Chinese traditional medicinal materials. We found the grown environment, such as temperature, humidity and light levels was very close among Dendrobium officinales grown on rock, tree bark and in greenhouse through long-term field monitoring. This is why they had the same content of Dendrobium officihale polysaccharide.

关 键 词：铁皮石斛 多糖含量 不同生境 岩溶环境 

分 类 号：Q946[生物学—植物学]