| 生物土壤与生态 |
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| Morphological and Structural Adaptation and Characteristics of Protonemal Development of Syntrichia caninervis in the Mosses Crust Layer |
| ZHENG Yun-pu1,2,3, ZHAO Jian-cheng1, ZHANG Bing-chang4, XU Ming2, ZHANG Yuan-ming4 |
| 1.College of Life Science, Hebei Normal University, Shijiazhuang 050016, China; 2.Institute of Geographical Sciences and Natural Resources, Chinese Academy of Sciences, Beijing 100101, China; 3.Graduate University, Chinese Academy of Sciences, Beijing 100049, China; 4.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China |
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Abstract Syntrichia caninervis serves as one of the commonly dominant species in moss crust in Gurbantunggut Desert. In this paper, its morphology and structure as well as the protonema characteristics of Tortula desertorum are observed under light microscopy and scanning electron microscopy. Furthermore, the adaptive relationships between the droughty environments and the morphology and structure of xerophic mosses are analyzed for the gametophyte stage to the protonema stage. The results indicated that Syntrichia caninervis species mostly develop in cluster; the edge of leaves obviously roll to back and the both surfaces have horse-hoof-like warts; the coarse costa extrudes into awn. In addition, the results also showed that the cells of the protonemata are podgy and the cytoplasm is seriously concentrated, with small vacuole and thick cell wall; the protonemata has short branches.
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Received: 22 January 2008
Published: 07 September 2009
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Cite this article:
ZHENG Yun-pu;;ZHAO Jian-cheng;ZHANG Bing-chang;XU Ming;ZHANG Yuan-ming. Morphological and Structural Adaptation and Characteristics of Protonemal Development of Syntrichia caninervis in the Mosses Crust Layer. JOURNAL OF DESERT RESEARCH, 2009, 29(5): 878-884.
URL:
http://www.desert.ac.cn/EN/ OR http://www.desert.ac.cn/EN/Y2009/V29/I5/878
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2009, Vol. 29 
