热带亚热带植物学报Issue(5)：501-510,10.DOI:10.11926/j.issn.1005-3395.2015.05.004
狗尾草属5种植物叶片的形态特征
Leaf Morphological Characteristics of FiveSetariaSpecies
摘要
Abstract
In order to understand the leaf morphological characteristics of leaves inSetaria, the anatomical structure of leaves in ifveSetariaspecies were studied by using parafifn section and freehand section methods. The results showed that the anatomical characteristics of leaf epidermis in five species were similar. The length of long cell and short cell, stomatal size and thickness of leaf and cuticular layer had signiifcant differences among ifve species. And the shape of long cell, pattern of anticlinal wall, shape of stomatal subsidiary cells, and number of prickle hairs could be used to identify species. The correlation analysis showed that there were signiifcant negative correlations between stomatal density and stomatal length, stomatal width. Besides, the thickness of bulliform cells had signiifcant positive correlations with thickness of cuticular layer and adaxial epidermis for 5 species. According to leaf epidermal traits in Gramineae, the evolution trend was in the order ofS. viridis →S. glauca andS. faberii→S. plicataandS. chondrachne. These could provide basic data for the study of systematics and evolution inSetaria.关键词
狗尾草属/叶表皮/形态特征/解剖结构Key words
SetariaBeauv./Leaf epidermis/Morphological characteristics/Anatomical structure引用本文复制引用
陈洁,李玉双,庞莉莉,王庆亚..狗尾草属5种植物叶片的形态特征[J].热带亚热带植物学报,2015,(5):501-510,10.基金项目
江苏省生物物种资源调查(T2010-1)资助 （T2010-1）
