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頁籤選單縮合
題 名 | Structural Changes of the Guard Cell Mother Cell of Soybean Cotyledon during the Early Germination Period=大豆萌芽初期子葉表皮保衛細胞母細胞的結構變化 |
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作 者 | 周大慶; 劉國鈞; | 書刊名 | 國立臺灣大學理學院植物學系研究報告 |
卷 期 | 37:2 1992.12[民81.12] |
頁 次 | 頁115-122 |
分類號 | 434.213 |
關鍵詞 | 大豆; 萌芽; 子葉; 表皮; 保衛細胞; 母細胞; 氣孔; 結構變化; |
語 文 | 英文(English) |
中文摘要 | 成熟的大豆種子在未萌發之前,子葉表皮上並無氣孔的構造,僅有保衛細胞母細胞分布在上皮細胞之間。當播種經過24小時之後,保衛細胞母細胞分裂成兩個保衛細胞,兩保衛細胞間之細胞壁尚未分開,無氣孔出道。 本研究利用光學和電子顯微鏡,觀察大豆種子在萌發的早期,在第24、48和72小時階段,子葉表皮保衛細胞母細胞分化形成保衛細胞及氣孔的外部形態和微細構造的變化,同時利用組織化學定性的方法研究保衛細胞母細胞分裂成兩個保衛細胞的過程和一般表皮細胞中所含之糖類,蛋白質和脂質的分布變化。 |
英文摘要 | The upper epidermal layers of soybean seeds and germinating were studied at different time intervals with light microspore and transmission and scanning electron microscopes. There were no tsoma on the upper epidermis of mature soybean seeds before seed germination. Instead, guard-cell mother cells were present among other epidermal cells. Each guard-cell mother cell forms two connected guard cells within 24h and the stomatal pores appear at about72h after planting. The ultrastructural changes of the guard-cell mother cells were studied during the early germinating period at 24h interval for 3 days. The stored food particles including starch grain, lipid droplets and protein bodies in the cytoplasm of the guard-cell mother cells and guardcells were studied histochemically. |
本系統中英文摘要資訊取自各篇刊載內容。