3个产地天门冬块根结构比较研究  

Root Structure of Asparagus of Different Populations

作　　者：谭智文[1] 王敏[1] 赵婷婷[1] 欧立军[1,2,3] 

机构地区：[1]怀化学院生命科学系,湖南怀化418000 [2]民族药用植物资源研究与利用湖南省重点实验室,湖南怀化418008 [3]湘西药用植物与民族植物学湖南省高校重点实验室,湖南怀化418008

出　　处：《中国民族医药杂志》2011年第10期40-43,共4页Journal of Medicine and Pharmacy of Chinese Minorities

基　　金：湖南省高校创新平台开放基金项目(09K106);民族药用植物资源研究与利用湖南省重点实验室开放课题(HHUW2011-54)

摘　　要：通过石蜡切片技术,对贵州、云南和湖南产天门冬块根进行结构比较。结果发现,贵州凯里天门冬块根的表皮细胞数量为6～7列,湖南通道天门冬和云南曲靖天门冬较少,为4～5列;湖南通道天门冬块根内皮层具有非常明显的凯氏带,细胞壁增厚明显,贵州凯里和云南曲靖天门冬凯氏带不明显或没有凯氏带;贵州凯里天门冬木质部和韧皮部束相互间隔排列的数量为20～35个,湖南通道天门冬为15～30个,云南曲靖天门冬为7～15个。结果表明,表皮细胞数量的多少、内皮层中凯氏带的有无及壁是否增厚、木质部和韧皮部束相互间隔排列的数量是3个居群天门冬显微鉴别的关键。The root structure of different populations of Asparagus cochinchinensis （Lour.） was studied using paraffin technology. Theresults showed the population from Guizhou Kaili had 6 -7 line epidermal cells, populations from Yunnan Qujing and Hunan Tongdao had 4 - 5 line epidermal cells. The population from Hunan Tongdao had obvious casparian strips and thicken cell wall, the populations from Guizhou Kaili and Yunnan Qujing hadnt obvious casparian strips or hadn＇t casparian strips. The amount of xylem and phloem were also different, the population from Guizhou Kaili had 20 -35, the population from Hunan Tongdao had 15 - 30 and population from Yunnan Qujing had 7 - 15. Taking together, casparian strips, cell wall of casparian strips and amount of xylem and phloem were the key factors to identification different populations of Asparagus cochinchinensis （Lour.）.

关 键 词：天门冬 居群 块根结构 

分 类 号：R29[医药卫生—民族医学]