查詢結果分析
來源資料
相關文獻
- Morphology of the Gametophytes and Young Sporophytes of Cyatheaceae Native to Taiwan
- 鬼桫欏配子體與幼孢子體的形態發生
- 臺灣產金狗毛蕨屬配子體及幼孢子體的形態
- 連珠蕨生殖生物學
- Observations on Gametophytesand Juvenile Sporophytes of Archangiopteris Somai Hayata (Marattiaceae), an Endangered Fern in Taiwan
- Diplazium Megaphyllum (Bak.) Christ, a Rare Fern in Taiwan, Reproduces by Apogamy
- 臺灣南部常見蕨類之孢子體細部構造及其原葉體發育過程之研究
- 應用白雲杉雌配子體「Picea Glauca (Moench) Voss Megagametophyte」組織培養研究色素形成因子
- An Ultrastructural Investigation of Protein Bodies in the Megagametophyte of Isoetes Taiwanensis
- A Comparative Account of the Gametophytes of Pollen Haploids and Parental Plants of Nicotiana tabacum L.
頁籤選單縮合
題 名 | Morphology of the Gametophytes and Young Sporophytes of Cyatheaceae Native to Taiwan=臺灣產桫欏科植物配子體與幼孢子體的形態 |
---|---|
作 者 | 黃曜謀; 邱文良; 李沛軒; | 書刊名 | Taiwania |
卷 期 | 46:3 2001.09[民90.09] |
頁 次 | 頁274-283 |
分類號 | 378.13 |
關鍵詞 | 桫欏科; 桫欏屬; 筆筒樹屬; 配子體; 孢子體; Cyatheaceae; Alsophila; Sphaeropteris; Gametophyte; Sporophyte; |
語 文 | 英文(English) |
DOI | 10.6165/tai.2001.46(3).274 |
中文摘要 | 台灣產七種桫欏科植物中,筆筒樹、韓氏桫欏、台灣樹蕨、與鬼桫欏之每個孢子囊有64顆孢子,而南洋桫欏、台灣桫欏及蘭嶼筆筒樹則有16顆孢子。除了韓氏桫欏與台灣樹蕨外,孢子發芽都屬「桫欏型」;韓氏桫欏與台灣樹蕨之孢子發芽時,假根形成較延遲。七種植物之配子体發育型式均為「槲蕨型」,但每種均有少數以「鐵線蕨型」發育。多細胞之鱗片狀毛發生在中肋的腹背兩面,並隨年齡增長而加大体型,此種多細胞之鱗片狀毛為桫欏科植物所特有。第一至第三或四片幼孢子葉無中肋,單列至多列及棍棒狀多細胞毛混生於桫欏屬之幼孢子葉上,但筆筒樹之幼孢子葉則缺棍棒狀多細胞毛,此或可為系統發生上分離之一證據。此外,孢子囊內具16或64顆孢子之特徵也反應桫欏屬植物在演化上的兩個事件。 |
英文摘要 | Seven species of Cyatheaceae are native to Taiwan. Sphaeropteris lepifera, Alsophila denticulata, A. metteniana, and A. podophylla produced 64 spores per sporangium, whereas A. loheri, A. spinulosa, and A. fenicis produced 16 spores per sporangium. Spore germination was Cyathea-type, except in A. denticulata and A. metteniana. In these two species, the rhizoid formation was delayed. Gametophytes of all seven species usually underwent Drynaria-type development, but a few gametophytes of all seven species exhibited Adiantum-type development. Multicellular, scale-like hairs on the dorsal and ventral surfaces of the midrib cushion increased in size and changed shape with age. These scale-like hairs distinguish Cyatheaceae gametophytes from the gametophytes of other fern families. The first three or four fronds of young sporophytes lacked midribs. Uniseriate to multiseriate and club-shaped pluricellular hairs were intermingled on the fronds of juvenile sporophytes of all six species of Alsophila. The lacking of club-shaped pluricellular hairs on Juvenile sporophytes of S. lepifera supports the taxonomic separation of Sphaeropteris from Alsophila. The presence of 16- and 64-spored sporangia suggests two evolutionary events within Alsophila. |
本系統中英文摘要資訊取自各篇刊載內容。