查詢結果分析
相關文獻
- Ultrastructural Study on the Recalcitrant Seeds of Machilus thunbergii Sieb. & Zucc.
- Ultrastructural Study of X-ray Irradiated Spores of Equisetum Arvense L.
- 紅麴發酵乾酪熟成期間組成及微細構造之變化
- The Ultrastructural Study on Epithelium of Gallbladder with Gallstones
- 醬筍製程質地與有關化學成分變化之研究
- Structure of the Exine in Artemisia Vulgaris (Asteraceae): A Review
- An Ultrastructural Investigation of Protein Bodies in the Megagametophyte of Isoetes Taiwanensis
- 休克時人類胰腺細胞微細構造之變化
- 梨加工製品之試製
- 作物微細構造在研究上之應用
頁籤選單縮合
題 名 | Ultrastructural Study on the Recalcitrant Seeds of Machilus thunbergii Sieb. & Zucc.=紅楠異儲型種子微細構造的研究 |
---|---|
作 者 | 卓娟秀; 林讚標; 黃玲瓏; | 書刊名 | Taiwania |
卷 期 | 46:2 2001.06[民90.06] |
頁 次 | 頁125-134 |
分類號 | 373.1 |
關鍵詞 | 紅楠; 異儲型種子; 油細胞; 黏液細胞; 種子儲存; 微細構造; Machilus thunbergii; Recalcitrant seed; Oil cell; Mucilage cell; Seed storage; Ultrastructure; |
語 文 | 英文(English) |
DOI | 10.6165/tai.2001.46(2).125 |
中文摘要 | 紅楠種子屬於不耐旱種子,其新鮮成熟種子內的胚芽已具四至六片初生葉。子葉含油細胞與黏液分泌細胞,然而胚主軸只有油細胞。胚芽與胚根頂端分生組織的細胞含大的細胞核與小液胞,細胞質緻密含各種胞器,色素體具澱粉粒與少量油滴。成熟種子經乾燥儲存後,頂端分生組織細胞之微細構造受到破壞(液胞化與細胞膜脫離等),且隨著貯存濕度之降低與貯存時間之延長而更為明顯,且其萌芽率也隨之降低。 |
英文摘要 | The recalcitrant (desiccation sensitive) seeds of Machilus thunbergii were histochemically and ultrastructurally investigated by using light and electron microscopy. The embryo of mature seed has 4-6 subopposite primary leaves in the plumule. We found two types of idioblastic secretory cells (oil cells and mucilage cells) in the cotyledons, but observed only the oil cells in the embryonic axes. Cells in shoot and radicle meristem of the fresh mature embryo have a large nucleus and small vacuoles. The cytoplasm is dense with organelles, and the plastids contain some starch grains and few oil droplets. Under 75% relative humidity storage condition, the desiccation processes set off the subcellular damages (vacuolation, withdrawal of plasmalemma) of the mature seeds. Such processes intensified with time and ultimately resulted in the loss of viability. |
本系統中英文摘要資訊取自各篇刊載內容。