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植物研究 ›› 2007, Vol. 27 ›› Issue (6): 679-686.doi: 10.7525/j.issn.1673-5102.2007.06.008

• 论文 • 上一篇    下一篇

中国蓼属分叉蓼组和冰岛蓼属植物叶下表皮微形态研究

朱立涛1,2;鲁法军1;侯元同1,3;李法曾1*   

  1. 1.山东师范大学生命科学学院逆境植物重点实验室,济南 250014 2.山东省菏泽市第一中学,菏泽 274000 3.曲阜师范大学生命科学学院,曲阜 273165
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-11-20 发布日期:2007-11-20
  • 通讯作者: 李法曾
  • 基金资助:
     

The Micro-morphology of Leaf Lower Epidermis of Polygonum section Aconogonon and Koenigia from China

ZHU Li-Tao;LU Fa-Jun;HOU Yuan-Tong;LI Fa-Zeng*   

  1. 1.Key Laboratory of Stress Plant Research,College of Life Sciences,Shandong Normal University,Jinan 250014 2.No.1 Middle School of Heze Shandong,Heze 2740003.College of Life Sciences, Qufu Normal University,Qufu 273165
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-11-20 Published:2007-11-20
  • Contact: LI Fa-Zeng
  • Supported by:
     

摘要:

采用光学显微镜对中国蓼属分叉蓼组(Polygonum section Aconogonon)和冰岛蓼属(Koenigia)的21种植物的叶下表皮微形态进行了观察研究。结果表明,其叶下表皮微形态特征可分为三种类型:(1)气孔器类型为无规则型,表皮细胞多边形,垂周壁为波状;(2)气孔器类型为无规则型兼有非典型不等型,表皮细胞为多边形或不规则形,垂周壁为平直弓形或波状;(3)气孔器类型为不等细胞型,表皮细胞多边形,垂周壁为平直弓形。分叉蓼组(西伯利亚蓼除外)植物的叶表皮气孔器类型具有高度一致性,说明该组是一个自然类群。本文研究结果不支持将大铜钱叶蓼(Polygonum forrestii Diels)、铜钱叶蓼(P. nummularifolium Meissner)划归于冰岛蓼属的处理意见;支持将西伯利亚蓼(P. sibiricum Laxm.)独立成属,即西伯利亚蓼属(Knorringia Tzvel.)的观点;同时也支持仍将多穗蓼(P. polystachyum Wall.ex Meissner)和松林蓼(P. pinetorum Hemsl.)归在分叉蓼组的处理意见。

关键词: 蓼属分叉蓼组, 冰岛蓼属, 叶下表皮, 中国

Abstract:

The leaf lower epidermal characteristics of 21 species of Polygonum sect. Aconogonon and Koenigia from China were observed under light microscope(LM).Three main types of leaf lower epidermal micro-morphology could be recognized in the present paper;(1)The stomata are anomocytic; the shape of the leaf epidermal cells is irregular,and the anticlinal walls are undulate;(2)The stomata are anomocytic or nontypical anisocytic; the shape of the leaf epidermal cells is irregular or polygonal,and the anticlinal walls are straight to curved and undulate;(3)The stomata are anisocytic; the shape of the epidermal cells is polygonal,and the anticlinal walls are straight to curved.The present data indicated that the sect. Aconogonon is a natural group with highly uniform stomata.The results of this study didn’t support to ascribe P. forrestii Diels and P. nummularifolium Meissner into the genus Koenigia.The generic status of Knorringia is supported,and P. polystachyum and P. pinetorum should be retained in sect. Aconogonon.

Key words: Polygonum section Aconogonon, Koenigia, leaf lower epidermis, China

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