干旱区生态环境知识资源中心(Arid): 古尔班通古特沙漠生物结皮中藓类植物形态解剖特征

Arid

	古尔班通古特沙漠生物结皮中藓类植物形态解剖特征
其他题名	Study on the Morphological and Anatomical Structures of Desert Mosses in Biotic Crust in the Gurbantonggut Desert
	王红玲; 张元明
ISSN	1001-4675
出版年	2008
卷号	25 期号:3 页码:363-370
中文摘要	对组成古尔班通古特沙漠生物土壤结皮的4种1变种藓类植物刺叶墙藓(Tortula desertorum Broth.)、真藓(Bryum argenteum Hedw.)、绿色流苏藓[Crossidium squamiferum (Viv.) Jur.]、泛生墙藓(Tortula muralis Hedw.)、泛生墙藓无芒变种(Tortula muralis var. aestiva Brid. ex Hedw.)的茎、叶形态解剖结构进行了观察.结果表明:除刺叶墙藓叶片上部为2层细胞组成外,其他4种叶片均由1层细胞组成.所有藓类植物叶片都具有明显或粗壮的中肋,起到了支持叶片和导水的作用.茎皮部外层细胞壁不同程度加厚.生物结皮中的藓类植物表现出叶片背卷或内卷、具疣状突起、透明毛尖(泛生墙藓无芒变种除外)以及边缘细胞壁加厚等特征,这些特征是对干旱荒漠环境长期适应的结果.研究结果为进一步揭示荒漠藓类植物形态特征与环境之间的关系提供理论依据.
英文摘要	Some mosses composing desert biotic crust are able to survive in arid and semiarid areas because of their strong drought tolerance.Under drought stress,the moss species have developed some morphological and anatomical characteristics to adapt arid environment.There are four moss species and one variety in biotic crust in the Gurbantonggut Desert,including Tortula desertorum Broth.,Tortula muralis Hedw.,Tortula muralis var.aestiva Brid.ex Hedw.and Crossidium squamiferum(Viv.) Jur.of Pottiaceace and Bryum argenteum Hedw.of Bryaceae.In this study,the morphological and anatomical structures of these desert mosses are observed and analyzed.The results show that the upper leaves of Tortula desertorum are composed of two-layer cells,and that of other four mosses are composed of single-layer cells.All the mosses have the distinct midribs and obvious incrassation of external cortex.Some characteristics of morphological structure,such as the leaf outcurve or concave,papillose features, white hairs(except Tortula muralis var.aestiva Brid.ex Hedw.) and thick wall of marginal cells,are the long-term adaptation of the mosses to the desert environment.The study results can be referred as theoretical basis for further revealing the relationships between the morphological structure of the desert mosses and the environment.
中文关键词	荒漠 ; 生物结皮 ; 藓类植物 ; 形态解剖 ; 古尔班通古特沙漠 ; 新疆
英文关键词	desert biotic crust moss morphological and anatomical characteristics Gurbantonggut Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:3267058
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222328
作者单位	中国科学院,新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	王红玲,张元明. 古尔班通古特沙漠生物结皮中藓类植物形态解剖特征[J]. 中国科学院新疆生态与地理研究所,2008,25(3):363-370.
APA	王红玲,&张元明.(2008).古尔班通古特沙漠生物结皮中藓类植物形态解剖特征.,25(3),363-370.
MLA	王红玲,et al."古尔班通古特沙漠生物结皮中藓类植物形态解剖特征".25.3(2008):363-370.