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Characteristics of spore germination and protonemal development in Hypnum pacleseens |
| HUANG Shiliang1, LI Min1, ZHAO Jiancheng1, WANG Zhenjie1, ZHANG Yuanming2 |
| 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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Issue Date: 05 September 2006
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