頁籤選單縮合
題 名 | 牛奶榕榕果形態之研究=Morphological Study on the Syconia of Ficus erecta var. beecheyana |
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作 者 | 曾喜育; 歐辰雄; 呂福原; | 書刊名 | 臺灣林業科學 |
卷 期 | 16:4 2001.12[民90.12] |
頁 次 | 頁295-306 |
分類號 | 373.96 |
關鍵詞 | 牛奶榕; 牛奶榕授粉蜂; 榕果形態; 榕果發育; Ficus erecta var. beecheyana; Blastophaga nipponica; Syconium morphology; Syconium development; |
語 文 | 中文(Chinese) |
中文摘要 | 本篇論文不解剖顯後鏡及掃描式電子顯微鏡觀察臺灣常見雌雄異株牛奶榕的榕果形 態變化。研究結果得知其雌、雄榕果內部構造與功能具明顯差異:雌榕果內有被授粉並發育為 種子的長花柱雌花及無效的中性花;雄榕果內有可被牛奶榕授粉蜂產卵的短花柱雌花及產生 花粉的雄花。長、短花柱雌花各具特化的柱頭,分別有助於授粉蜂授粉及產卵,維持及強化 雙方特殊的共生關係。中性花具退化雌、雄蕊,可能源自雌雄同株演化至雌株時的退化雄花, 支擬雌雄異株的牛奶榕演化自雌雄同株的假說。依據研究結果,牛奶榕隸屬榕亞屬、無花果 節。 |
英文摘要 | An overview using stereomicroscopy and scanning electron microscopy is given of the morphology of the syconia of Ficus erecta var. beecheyana, 1 of common dioecious fig species in Taiwan. The female syconia are composed of long-style female flowers and neutral flowers. In contrast, the male syconia are composed of male flowers and short-style female flowers. The specific structures of the long-style and short-style female flowers are evidently helpful in pollination and oviposition, respectively, by the obligate pollinator, Blastophaga nipponica, thus maintaining and strengthening the symbiotic relationship between their 2 organisms. According to the morphology of the neutral flowers of the abortive gynoecium and androecium, F. erecta var. beecheyana might have evolved from a monoecious ancester. Based on these results, we hereby confirm that F. erecta var. beecheyana belongs to the section Ficus of the subgenus Ficus. |
本系統中英文摘要資訊取自各篇刊載內容。