摘要
用无色指甲油印痕法对鸭跖草科的紫竹梅、吊竹梅和鸭跖草的幼茎、成熟茎、成熟叶鞘的外表皮和幼叶、成熟叶和上、下表皮的气孔分布进行观察。并借助于计算机对三种植物的各器官各部分的气孔分布进行差异性检验和总体比较。结果表明 :三种植物的幼茎、成熟茎和成熟叶鞘外表皮的上部、中部、基部的气孔分布均无显著性差异 ,而幼叶和成熟叶的上、中、下部的气孔分布存在着显著性差异或极显著差异。三种植物的总体比较 ,只有幼茎无显著性差异。同科不同属的三种植物不同器官的气孔分布存在差异与其遗传和生境条件有关。在植物不同的器官中 ,叶表面的气孔分布特征可以作为植物分类的佐证。
With colourless nail polish, study on the stomatic distribution of outer epidermis in the young stem, aged stem and aged leaf sheath, and adaxial and abxial leaf epidermis of young and aged leaves in S. purpurea, Z. pendula and C. communis was conducted. With computer, we compared the stomatic distribution of different organs, parts and whole from the three plants. The results showed that there are no significant difference within the stomatic distribution of outer epidermis of young and aged stem and aged leaf sheath in three plants; but there are significant or very significant difference within apex, middle and base of young and aged leaves. For the comparison of whole plant, only young stem has no significant different. There are difference within stomatic distribution of different organs of three plants in differnt genus of the same family, which related to their genetic facters and habitat condition. In the plant organs, the stomatic distribution characteristics of leaf epidermis may be taken as an evidence of plant classification.
出处
《植物学通报》
CAS
CSCD
2000年第4期375-380,共6页
Chinese Bulletin of Botany
关键词
紫竹梅
吊竹梅
鸭跖草
气孔分布
分类
Setereasea purpurea, Zebrina pendula, Commelina communis, Stoma, Coloureless nail polish printing mark method
