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题名: Comparative studies on gametophyte morphology and development of seven species of Cyatheaceae
作者: Chen, Gui-Ju1, 2; Cheng, Xiao1; Liu, Bao-Dong3; Jiao, Yu1
刊名: AMERICAN FERN JOURNAL
关键词: Cyatheaceae ; gametophyte ; morphology ; development
英文摘要: Gametophyte morphology and development of seven species of Cyatheacae in China are described. The spores of the seven species are of typical shape (trilete, tetrahedral) and they exhibit Cyathea-type germination. The gametophytes undergo Adiantum-type development with occasional Drynaria-type development. Filaments are usually 2-3 cells long. The normal adult prothalli are cordate and thalloid with prominent cushions in the middle of the two wings. Prothalli are usually bisexual and antheridia form earlier than archegonia. Lingulate, strap-like and branched prothalli easily grow on the crowded improved Knop's agar media, which produce notches late and produce more antheridia. In distilled water, filamentous prothalli only produce antheridia. The shapes of the mature prothalli of Sphaeropteris brunoniana and Alsophila austroyunnanensis are distinct among seven species. Multicellular chlorophyllous hairs appear on dorsal or ventral surfaces in the archegonial region near the notch when the prothallus matures, and the hairs are scaly when they get old. Hairs of the prothallus are like those on the juvenile sporophyte fronds. Vegetative proliferations of old protahlli have been observed.
出版日期: 2008-04-01
卷号: 98, 期号:2, 页码:83-95
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 0002-8444
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2485
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Bot Garden, Kunming 650204, Yunnan, Peoples R China
2.Grad Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Harbin Normal Univ, Coll Life & Environm Sci, Harbin 150025, Heilongjiang, Peoples R China

Recommended Citation:
Chen, GJ; Cheng, X; Liu, BD; Jiao, Y.Comparative studies on gametophyte morphology and development of seven species of Cyatheaceae,AMERICAN FERN JOURNAL,2008,98(2):83-95
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