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題 名 | 有機添加物Glutamine對花生子房柄培養後結莢及胚發育之影響=The Influence of Glutamine on Podding and Embryo Development in Cultured Peg Tips of Arachis Hypogaea L. |
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作 者 | 胡澤寬; | 書刊名 | 中華農學會報 |
卷 期 | 181 1998.03[民87.03] |
頁 次 | 頁102-110 |
分類號 | 434.257 |
關鍵詞 | 花生; 子房柄先端; 體外培養; 胚發育; 麩胺醯胺; Arachis hypogaea L.; Peg tips; In vitro culture; Embryo development; Glutamine; |
語 文 | 中文(Chinese) |
中文摘要 | 花生子房柄培養已知能有效地拯救雜交胚引旦其效率仍有加以提昇之必要。本 研究之目的即 在探討添加glutamine對子房柄體外結莢及胚發育的促進效果。以栽培品種 臺南11號授粉後14天且含胚及胚珠之子房柄先端為材料,培養於添加不同濃度glutamine 之MS培養基。由結果顯示單純MS培養基並不足以誘導出較大的莢果及成熟種子,添加glu amine則顯著地提高子房柄發根、子房膨大及莢果形成的比率。50mg/1 glutamine為誘導 莢果形成與胚發育的最有效濃度,但其誘導效果因品種(系)不同而異。由添加glutamine 培養基獲得之莢果可觀察到心臟形成期至後子葉期的胚'甚至獲得成熟種子;表示經一階 段體外培養就可以完成由子房至莢果及由前胚至成熟種子的完整發育過程。此培養技術或 許在建立種間雜交胚拯救技術時可加以參考利用。 |
英文摘要 | In vitro culture of Arachis peg tips have been used to recue aborting embryo of interspecific hybrid, but increased efficiency is still needed. The objective of this research was to investigate whether glutamine can be supplemented to enhance podding and embryo development of Arachis hypogaea L. Fourteen-day-old peg tips, with embryos and ovules, of cv. TN 11 were cultured on the MS media combined with various glutamine levels. The results indicated that the basal MS medium was not sufficient to induce larger pods and mature seeds. Media containing glutamine could significantly enhance the percentage of rooting, ovary swelling and pod formation. Fifty mg/1 glutamine was the most favorable concentration for pod formation and embryo development, but the induced response was different among cultivars. In media with added glutamine, embryos in the heart-shaped to late cotyledonary stage was observed and mature seeds was obtained. These observations illustrate that the complete developmental processes from ovaries to fruits and from proembryos to mature seeds in peanut can be achieved through a one-step in vitro procedure, and techniques may be applicable to rescue of interspecific hybrids. |
本系統中英文摘要資訊取自各篇刊載內容。