摘要
光学显微镜下观察了菖蒲属2种和天南星科花烛属、麒麟叶属、龟背竹属、广东万年青属、花叶万年青属5个较原始属的5种植物的叶表皮细胞及气孔器的特征.结果表明,菖蒲属与这5个属的叶表皮特征存在着明显的差异.菖蒲属叶上下表皮特征基本一致,细胞形状为长方形或近菱形,气孔器平列型,成纵行与叶脉平行排列;花烛属等植物叶的上、下表皮细胞特征不一致,细胞为多边形或不规则,垂周壁平直,弓形或浅波浪形,气孔器多分布在下表皮,排列无定向,有平列型和冠列型2种,但以冠列型居多.这些相关性状能为菖蒲属和天南星科的系统学关系提供有价值的资料,同时也为麒麟叶属与龟背竹属的系统关系提供了佐证.
Characteristics of leaf epidermis cells and stomata apparatus of 2 species in genus Acorus and 5 species belonging to 5 genera in Araceae were observed under the light microscope. It is found that there are obvious differences between Acorus and Araceae. In Acorus both upper and lower epidermis cells are rectangle or rhombus, and the stomata apparatus are paracytic and arrange in rows along the veins. In the 5 genera of Araceae, the upper and lower epidermis cells are polygonal or irregular, the patterns of anticlinal walls are straight, arched or sinuolate; the stomata apparatus which mainly distribute on the lower epidermis are paracytic or stephanocytic, regularly arranged. The correlated characteristics are useful for illustrating their systematic relationships between Acorus and Araceae, and also provide evidence for studies on systematic relationships of Epipremnum Schott and Monstera Adans.
出处
《晓庄学院自然科学学报》
EI
CAS
北大核心
2003年第2期88-91,共4页
Journal of Natural Science of Hunan Normal University
基金
湖南省自然科学基金资助项目(01C0138)
