乐山绿心公园十种蕨类植物叶表皮微形态特征研究  

Study on Micromorphological Characteristics of Leaf Epidermis of 10 Ferns in Leshan Green Heart Park

作　　者：王杰 黄娇[1] 李苏婷 WANG Jie;HUANG Jiao;LI Su-ting(College of Life Science,Leshan Normal University,Leshan 614000,China)

机构地区：[1]乐山师范学院生命科学学院,四川乐山614000

出　　处：《黑龙江农业科学》2021年第9期74-79,共6页Heilongjiang Agricultural Sciences

基　　金：四川省大学生创新创业训练计划项目(S201910649139);乐山师范学院博士科研启动项目(801/205190166)。

摘　　要：为促进鳞毛蕨科和金星蕨科植物形态学研究,利用光学显微镜对乐山绿心公园10种蕨类植物叶表皮微形态特征进行了观察,比较分析了10种蕨类植物的叶表皮细胞大小、形状、气孔器类型、大小、指数、形状和密度。结果表明:鳞毛蕨科3种植物的表皮细胞形状为不规则形和不规则长条形,垂周壁样式为不规则凹凸状和深波状,最大表皮细胞长宽比为4.3,气孔器类型以极细胞型和轴细胞型为主;金星蕨科7种植物上下表皮细胞形状基本为不规则形,细胞长宽比相近。金星蕨属3种植物的表皮细胞垂周壁样式多为不规则凹凸状,毛蕨属3种植物多为深波凹凸状,针毛蕨属1种植物为不规则凹凸状。金星蕨科7种植物的气孔器类型主要为极细胞型、轴细胞型、不规则型和不等细胞型,科下3个属在气孔器类型、气孔密度上表现出一定的属间差异。In order to promote the morphological study of Dryopteridaceae and Thelypteridaceae,the micromorphological characteristics of leaf epidermis of 10 ferns in Leshan Green Heart Park were observed by optical microscope,and the size,shape of leaf epidermis cells,type,size,index,shape and density of stomatal organ of 10 ferns were compared and analyzed.The results showed that the epidermal cells of three species of Dryopteridaceae were irregular and irregular strip,the vertical wall was irregular concave convex and deep wavy,the maximum length width ratio of epidermal cells was 4.3,and the types of stomatal organ were mainly polocytic type and cellula axialis type;The shape of upper and lower epidermal cells of 7 species of Thelypteridaceae was basically irregular shape,and the cell length width ratio was similar.The vertical walls of epidermal cells of three Parathelypteris plants were mostly irregular concave and convex,three Cyclosorus plants were mostly deep wave concave convex,and one Macrothelypteris plant was irregular concave convex.The stomatal organ types of 7 species of Thelypteridaceae were mainly polocytic type,cellula axialis type,irregular type and unequal cell type.The stomatal organ types and stomatal density of the three genera of Thelypteridaceae show certain intergeneric differences.

关 键 词：鳞毛蕨科 金星蕨科 叶表皮 气孔器 微形态特征 

分 类 号：Q94[生物学—植物学]