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| 題 名 | 吧噹藤莖之微細構造 |
|---|---|
| 作 者 | 陳玉秀; 黃彥三; 唐讓雷; | 書刊名 | 林業試驗所研究報告季刊 |
| 卷 期 | 8:3 1993.09[民82.09] |
| 頁 次 | 頁197-208 |
| 分類號 | 436.183 |
| 關鍵詞 | 木質部; 韌皮部; 導管; 篩管; 薄壁細胞; 特異細胞; 針晶體; 簇晶狀矽粒; Xylem; Phloem; Vessel; Sieve tube; Parencyma; Idioblast; Raphid; Druse-like silica grain; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 吧噹藤莖切片經脫水及二氧化碳臨界點乾燥處理,於掃描式電子顯微 鏡下觀察其微細構造。部分試材並經藥液解析將細胞分離以觀察個別細胞之相互 位置、壁孔構造以及礦物質沈積之形態、構造及位置等。由觀察結果顯示吧噹藤 莖具典型之單子葉植物構造。後生木質部導管密佈對生壁孔,原生木質部之導管 呈環狀、螺旋狀、網狀或階梯狀加厚,篩管聚生成半月形,篩板有加厚現象,纖 維與薄壁細胞間密生簇晶狀矽粒,基本組織中之特異細胞含針晶體。 |
| 英文摘要 | The ultrastructure of the mature stems of Calamus longisetus Griff. was observed under scanning electron microscope. The collateral vascular bundles are embedded in the ground parenchyma and consist of conducting tissue, xylem and phloem, and fibers. The xylem is composed of metaxylem, protoxylem and associated parenchyma sheath. The metaxylem vessels are single and occupy the center of each vascular bundle. Surrounding the central vessel are protoxylem cells and phloem cells. Metaxylem vessels with simple perforation are well-pitted while protoxylem vessels are with annular, helical or reticular thickening. Sieve tubes in two phloem fields with compound sieve plates arrange in one row. The ground parenchyma cells vary in size and shape but are mostly arranged as "stack of coins" when viewed in a longitudinal section. Inorganic deposition found in the idioblasts within ground tissue and also in intercellular spaces between fibers and ground parenchymatous cells. |
本系統中英文摘要資訊取自各篇刊載內容。