Characteristics of spore germination and protonemal development in Hypnum pacleseens |
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| Authors: | Huang Shiliang Li Min Zhao Jiancheng Zhang Yuanming and Wang Zhenjie |
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| Institution: | (1) College of Life Science, Hebei Normal University, Shijiazhuang, 050016, China;(2) Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China |
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| Abstract: | The spore germination, protonemal development, and gametophyte differentiation of Hypnum pacleseens were observed in cultivation. Photomicrographs showed that spore germination of Hypnum pacleseens occured within the exospore. Its protonema is massive with filamentous chloronema formed inside. The terminal part of the
chloronema differentiated into filamentous caulonema and its rhizoid was derived from the apical cell of the filamentous chloronema.
The initial cell of gametophyte differentiated from chloronema and caulonema. Sporeling-type of Hypnum pacleseens is developmentally similar to Glyphmitrium-type. |
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| Keywords: | mosses Hypnum pacleseens spore germination protonemal development sporeling-type |
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