摘要
对11种鼠尾草属植物叶片和叶柄的解剖学特征进行比较。应用石蜡切片法观察了11种鼠尾草属植物叶的解剖结构,测量了表皮、木质部、韧皮部等指标,并结合主成分和系统聚类对所测数据进行了分析。结果表明:11种鼠尾草叶片均为异面叶,叶片和叶柄表面均覆有毛被。上下表皮均由1层细胞构成。在叶片和叶柄横切面上不同种鼠尾草属植物的结构有差异。其中上表皮厚度等9个解剖特征可作为鼠尾草属分类鉴定的重要依据,并为鼠尾草属植物亲缘关系鉴定提供了解剖学证据。
Anatomical features of the lamina and petiole of 11 species of Salvia had been compared. The microstructures of 11species of Salvia were observed by paraffin method,and indexes such as the epidermis,xylems and phloems were measured. The data set was analyzed by principal components analysis method and cluster analysis method. The results indicated that the laminae of 11 species of Salvia were bifacial leaf,and the surface of laminae and petioles were covered with villous. The upper epidermis and lower epidermis of the laminae of 11 species of Salvia were constituted by a dense cuticular layer without stratum corneum. Differences existed in the structure of cross sectio mn of laminae and petioles of 11 species of Salvia. Among them,upper epidermal thickness of nine different micromorphological characters could serve as one of the criteria to identify species of taxonomic Salvia. The identification of genetic relationship of these characters in Salvia were discussed in the paper to provide an evidence of anatomy in Salvia.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2014年第14期2629-2634,共6页
China Journal of Chinese Materia Medica
基金
国家星火计划项目(2010GA810001)
四川省教育厅重点项目(2009ZA067)
四川省科技厅科技支撑计划项目(2011ZO0006)
四川省科技厅产学研创新联盟合作项目(2010Z00028)
成都市科技型中小企业技术创新基金计划项目(11CXYB958JH-003)
关键词
鼠尾草属
叶
主成分分析
解剖学
分类学
Salvia
leaf
principal component analysis
anatomy
taxonomy
作者简介
通信作者,张利，教授，博士生导师，E-mail：zhang8434@sina.com
