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題 名 | Influence of Ventilation Closures on Plant Growth Parameters, Acclimation and Anatomy of Leaf Surface in Scrophularia Yoshimurae Yamazaki--A Medicinal Plant Native to Taiwan=透氣性培養容器封口對臺灣本土藥用植物--臺灣雙鋸齒葉玄參組培苗生長、馴化及葉表構造之影響 |
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作 者 | 陳威臣; 夏奇鈮; 蔡新聲; | 書刊名 | Botanical Studies |
卷 期 | 47:3 民95.07 |
頁 次 | 頁259-266 |
分類號 | 434.92 |
關鍵詞 | 玻璃質化; 組織培養; 掃描式電子顯微鏡; 臺灣雙鋸齒葉玄參; 氣孔; 透氣性培養容器封口; Hyperhydricity; In vitro culture; Scanning electron microscopy; Scrophularia yoshimurae; Stomata; Ventilation closure; |
語 文 | 英文(English) |
中文摘要 | 臺灣雙鋸齒葉玄參 (Scrophularia yoshimurae) 為重要藥用植物,其組織培養大量繁殖瓶苗過程中,利用雙層鋁箔紙 (aluminum foil, AF) 或不同層數藥包紙 (dispense paper, DP) 之培養容器封口形成透氣率的差異,對於組織培養苗發根、馴化與葉表構造均可造成極大的影響。研究結果顯示,組培苗葉片之生長效率以鋁箔紙處理最差,其出瓶馴化成活率甚至低於7%。利用掃描式電子顯微鏡 (scanning electron microscopy, SEM) 觀察不同透氣率處理與馴化成活植株葉表之結果顯示,包括表皮細胞、保衛細胞與氣孔之大小與密度等葉片特性,均受到培養容器封口透氣率的影響,進而導致出瓶組培苗的馴化存活率的差異。透氣率較低之鋁箔紙處理相較於透氣率較高之藥包紙處理,其組培苗葉片顯示具有最大表皮細胞密度 (15094 cells/平方公厘) 與氣孔密度 (38 stoma/平方公厘)。利用透氣率較高之藥包紙作為培養容器封口,不僅可改善其組培苗葉片形態,更進一步促進組培苗之出瓶移植存活率達66.7%。本研究結果顯示,藉由改善培養容器封口透氣率,不僅提供有效方法以促進組培苗之出瓶馴化成活率,更進一步利用掃描式電子顯微鏡的觀察證實,出瓶馴化成活率的差異主要是由於培養容器封口透氣率的不同。 |
英文摘要 | Different ventilation closures, including aluminum foil (AF) and a varying number of dispense papers (DP) had different effects on leaf growth parameters, in vitro rooting, survival rate and the anatomical features of the leaf surface of in vitro and ex vitro acclimated plants of Scrophularia yoshimurae-an important medicinal plant. The lowest plant growth parameters and ex vitro acclimation rate (<7.0%) were obtained using AF as ventilation closure. A scanning electron microscopy (SEM) study of leaf surfaces of plants derived from different ventilation closure treatments showed that parameters-including density and size of epidermal cell and stomata, size of guard cells, and stomata aperture-differed significantly among various treatments, and this in turn affected plant survival rate. Leaves derived from AF treatment had higher epidermal cell (15094 cells/mm^2) and stomata (38/mm^2) densities than DP treatments. Well-ventilated container closures, such as with DP, improved the morphological characteristics of leaves and in turn enhanced the survival rate during ex vitro acclimation (maximum rate being 66.7%). The present study not only provides an improved micropropagation method of S. yoshimurae but also gives scientific reasons for the different acclimation rates obtained with various container closures. |
本系統中英文摘要資訊取自各篇刊載內容。