草石蚕不同海拔叶表特征的比较研究  

Study on the Leaf Epidermal Characters' Comparison in Different Altitude of Stachys sieboldii

作　　者：韦梅琴[1] 王晋民[1] 熊辉岩[1] 杨春江[1] 

机构地区：[1]青海大学农牧学院农林系,青海西宁810016

出　　处：《北方园艺》2012年第7期179-181,共3页Northern Horticulture

基　　金：青海省科技厅科研资助项目(2009-Z-720)

摘　　要：用过氧化氢-醋酸离析法对生长于不同海拔高度草石蚕的叶片表皮细胞形态、气孔特征进行了观察比较。结果表明:植物的叶表特征与其所处的环境密切相关。草石蚕表皮细胞形状,横切面观:上、下表皮细胞呈长方形;表面观:上表皮细胞呈多边形,而下表皮细胞形状不规则,其垂周壁浅波状;气孔形态随海拔上升呈现椭圆型—近圆形—椭圆型的转变,气孔器散生分布于下表皮细胞中,气孔取向无规则;气孔密度、气孔指数随海拔升高并不成线性关系。The leaf epidermis cells forms,stomatal characteristics of Stachys sieboldii were observed and compared in different altitude by hydrogen peroxide-acetic acid segregation method.The results showed that the upper and lower epidermis cells of Stachys sieboldii were tending to rectangle in transverse section;the cells of the upper epidermis were polygonal,while skin cells were irregular in shape,and the patterns of anticlinal walls were sinuolate;The form of stomatal present elliptic-nearly round-elliptic changes with the elevations rise,there were a few stomatal apparatus in abaxial,stomatal apparatus mostly anomocytic;stoma density and stomatal index had not linear relationship with the elevations rise.Therefore the leaf epidermal features were related to their habitat condition.

关 键 词：草石蚕 叶表特征 海拔 气孔 

分 类 号：S647[农业科学—蔬菜学]