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博碩士論文 etd-0822107-103108 詳細資訊
Title page for etd-0822107-103108
論文名稱
Title
鱗毛蕨亞科蕨類植物孢子的電子顯微鏡觀察研究
Scanning Electron Microscopic Studies on the Spores of Dryopteridoideae from Taiwan
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
53
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2007-07-25
繳交日期
Date of Submission
2007-08-22
關鍵字
Keywords
電子顯微鏡、表面花紋、孢子
Dryopteridoideae, classification, spore ornamentation, SEM
統計
Statistics
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The thesis/dissertation has been browsed 5705 times, has been downloaded 1043 times.
中文摘要
本研究以掃描式電子顯微鏡觀察台灣產鱗毛蕨亞科孢子的形態和表面花紋,共觀察8屬45種。孢子形狀圓至橢圓形,皆為單孔溝;多數為表面皺褶突起,呈脊狀、或短、或長、或飽滿、或細薄,獨立或相連成網狀,少數為刺狀突起形態;表面細微構造有顆粒沉澱、毛細小刺、小孔隙、尖銳柱狀突起、鱗片花紋、皺痕花紋等。
依觀察的孢子表面花紋之異同可對現有的不同分類系統提出如下的觀點:1.三叉蕨屬和擬鱗毛蕨屬的孢子之刺狀形態在所有材料中非常獨特,此結果支持鱗毛蕨類和三叉蕨類是有區別的;2.金毛蕨屬與鱗毛蕨族的孢子形態相似,而與三叉蕨類不同,此結果與分子的研究符合但與傳統的分類不符;3.鱗毛蕨屬中少數物種的孢子形態分歧,可置於亞屬;4.耳蕨屬的其中一類孢子具多孔表面特徵,與鱗毛蕨亞科中的其他屬明顯分歧,或可將其置於亞屬,以作區分;5.本研究支持將貫眾蕨屬併入耳蕨屬。
Abstract
The spores of Dryopterioideae from Taiwan were studied with scanning electron microscope. Eight genera and 45 species were observed. The spores were monolete and ellipsoidal to somewhat global. The spore macro-ornamentations were mostly rugate, tuberculate, cristate and reticulate, few are echinate. Surface micro-ornamentations observed were granulate, echinulate, fenestrate, sharp columellate, scale, and rugate.
Based on observed spore ornamentation similarities and differences, the following points toward current different classification systems can be made: The echinulated spore ornamentation found in Tectaria and Dryopsis were quite different from others being studied and this result supported that Dryopterioid ferns are different from Tectarioid ferns. Lastreopsis have similar spore ornamentation with genera in Dryoterideae, but not Tectarioid ferns. The result agreed with molecular data but not traditional classification. Few species of Dryopteris had their distinct spore ornamentations and may be better classified into a subgenus in Dryopteris. One group of Polystichum had spore ornamentation quite different from other groups and this group may be classified into a subgenus of Polystichum. The spore ornamentations support that Cyrtomium be included in Polystichum.
目次 Table of Contents
中文摘要 …………………………………………………Ⅰ
英文摘要 …………………………………………………Ⅱ
目錄 ………………………………………………………Ⅳ
表目錄 ……………………………………………………Ⅴ
圖目錄 ……………………………………………………Ⅵ
壹、前言 …………………………………………………1
貳、材料與方法 …………………………………………6
參、結果 …………………………………………………7
肆、討論 …………………………………………………15
伍、引用文獻 ……………………………………………20
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