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|本期目录/Table of Contents|

半边莲营养器官结构与生态环境的关系

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2010年02期
页码:
177-180
栏目:
植物系统学与演化植物学
出版日期:
2010-03-15

文章信息/Info

Title:
Relation between vegetative organ structure and ecotope of Lobelia chinensis
作者:
柴瑞娟1王玉良2郑玉华2康健2
1.安徽工程科技学院 生化系, 安徽 芜湖 241000; 2.安徽科技学院 生命科学学院, 安徽 凤阳 233100
Author(s):
CHAIRui-Juan1WANGYu-Liang2ZHENGYu-Hua2KANGJian2
1.Department of Biochemistry, Anhui University of Technology & Science, Wuhu 241000, China; 2.Department of Biology, Anhui Science and Technology University, Fengyang 233100, China
关键词:
半边莲 石蜡切片 解剖结构 水生植物 生态环境
Keywords:
Lobelia chinensis paraffin slice anatomical structure aquatic plant ecotope
分类号:
-
DOI:
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文献标识码:
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摘要:
利用石蜡切片和光学显微镜,对半边莲的营养器官进行形态解剖学研究。结果表明:半边莲根和茎的次生结构不发达;地上茎表现为根的特征:茎皮层所占比例较大,茎中有明显的内皮层,内皮层上具凯氏带;根的皮层和茎的髓具通气组织,裂生型分泌道存在于茎的皮层;叶的气孔高于表皮,气孔只在上表皮有分布,叶尖具水孔。半边莲的形态结构特征表现出对水生生活的高度适应。对半边莲的系统位置也作了简单探讨。
Abstract:
The vegetative organs of Lobelia chinensis was studied by the method of paraffin slice and light microscope. The results showed that L.chinensis had some morphological characteristics as follows:firstly,the secondary structure of stem and root of L.chinensis was underdeveloped. Secondly,the stem showed some characteristics which belong to root,such as ,cortex took lager room of stem. Also,there were obvious casparian strip in endodermis .Thirdly,There were a great deal of ventilating tissue in root’s cortex and stem’s medulla,and there were schizogenous secretory cavity in cortex of stem. Moreover,there were some special characteristics of leaf,for example,stomas stood out of the epidermis and scattered on upper epidermis only. Besides,water pores distributed in the top of leaves. All the results confirmed the morphological and anatomical structure characteristics of L.chinensis showed a hige degree of adaption to aquatic surroundings. Finally,the systematic position about L.chinensis was discussed simply in this paper.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2010-04-29