干旱区研究

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2018 , Vol. 35 >Issue 4: 891 - 898

DOI: https://doi.org/10.13866/j.azr.2018.04.17

植物及植物生理

新疆天山高寒地区10种青藓科植物叶的微结构观察

  • 王剑虹 ,
  • 陈秋艳 ,
  • 王虹 ,
  • 袁祯燕 ,
  • 吴玉环
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  • 1.兰州职业技术学院,甘肃 兰州 730070;
    2.新疆大学生命科学与技术学院,新疆 乌鲁木齐 830046;
    3.杭州师范大学生命与环境科学学院,浙江 杭州 310036
王剑虹(1973-),女,教授,硕士,主要从事资源植物开发利用. E-mail: 601910330@qq.com
王虹. E-mail: wanghong211@163.com

收稿日期: 2017-08-27

  修回日期: 2018-01-30

  网络出版日期: 2025-11-18

基金资助

国家自然基金项目(41461010,41571049)

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Microstructures of Leaves of 10 Brachytheciaceae Plant Species from the Region of Glacier No.1 in the Tianshan Mountains

  • WANG Jian-hong ,
  • CHEN Qiu-yan ,
  • WANG Hong ,
  • YUAN Zhen-yan ,
  • WU Yu-huan
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  • 1. Lanzhou Vocational Technical College, Lanzhou 730070, Gansu, China;
    2. College of Life Science and Technology, Xinjiang University, Urumqi 30046,Xinjiang,China;
    3. College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, Zhejiang, China

Received date: 2017-08-27

  Revised date: 2018-01-30

  Online published: 2025-11-18

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摘要

本文采用光镜与扫描电镜,对新疆天山高寒地区10种青藓科植物叶的微结构进行了研究,观察得出10种青藓科植物叶尖渐尖或为长毛尖,叶尖顶端细胞透明,短或狭长;叶片细胞壁加厚;导水细胞较大。植株的叶片干燥时,细胞壁的凹凸程度不同,表面具不同形状的纹饰及附属物,大多数种类的表面有小窝点分布,但这些微结构在青藓属(Brachythecium B.S.G.)、毛尖藓属(Cirriphyllum Grout.)、长喙藓属(Rhynchostegium B.S.G.)植物叶中均有明显差异。同属、不同属之间,由于生长环境不同,植物体叶也会呈现出不同的形态特征。这表明10种植物的微结构特征是与环境密切相关。

关键词： 青藓科; 微结构; 电镜扫描; 天山一号冰川; 新疆

本文引用格式

王剑虹 , 陈秋艳 , 王虹 , 袁祯燕 , 吴玉环 . 新疆天山高寒地区10种青藓科植物叶的微结构观察[J]. 干旱区研究, 2018 , 35(4) : 891 -898 . DOI: 10.13866/j.azr.2018.04.17

Abstract

It is always difficult to classify the Brachytheciaceae plant species. In this study, the microstructures of leaves of 10 Brachytheciaceae plant species from the region of glacier No.1 in the Tianshan Mountains, Xinjiang were studied by light microscope and SEM. The results indicated that the leaf apexes of these 10 species are acuminate or long-hair-shaped. The leaf apex cells are transparent, short or narrow. The leaf cell walls are thick, and the water conducting cells are larger. When the leaves of the plant are dry, the cell wall has different degree of conversity, and also some tiny holes on the surface of the most specie. The microstructures of Brachythecium B.S.G., Cirriphyllum Grout. and Rhynchostegium B.S.G. are different. The morphological features of leaves of the plant species in different genera and even in the same genera are different due to the different growing environment, which revealed that the microstructures of these 10 species are closely related to the growing environment. The results of this study could provide some information for the classification of Brachytheciaceae plant species in the region of Glacier No.1 in the Tianshan Mountains.

Key words： Brachytheciaceae; microstructure; SEM; glacier No.1; Xinjiang

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