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頁籤選單縮合
題名 | A Differential Effect of Adenine, Isopentenyladenine and Zeatin on Seedling Growth of Water Convolvulus and Rice=Adenine, Isopentenyladenine與Zeatin對蕹菜及水稻幼苗生長的不同影響 |
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作者 | 董敏生; | 書刊名 | 農林學報 |
卷期 | 45:3 1996.09[民85.09] |
頁次 | 頁89-97 |
分類號 | 434.23 |
關鍵詞 | 蕹菜; 水稻幼苗生長; Adenine; Isopentenyladenine; Zeatin; Hoagland solution; Water convolvulus; Rice; Seeding growth; |
語文 | 英文(English) |
中文摘要 | 本題研究的目的主要是在探討三種構造式相關的cytokinins adenine, isopentenyladenine (iPA) 及 zeatin (每種溶於 Hoagland 溶液內成不同的低濃度)對 於蕹菜幼苗及水稻幼苗的生長有何不同的影響力。 實驗結果顯示 adenine 溶液在 10 �笐� M, iPA 溶液及 zeatin 溶液皆在 10 ���� M 至 10 ���� M 能促進蕹菜幼苗的生長,而在 水稻幼苗生長方面,adenine 溶液在 10 ���m至�幰��| M 有效,而 iPM 溶液( 10 ���m至 10 ���| M )皆無影響,zeatin 溶液在 10 ���椰� 10 ���| M 卻有抑制作用。由這些結果 可反應出蕹菜幼苗及水稻幼苗的生長對於此三種 cytokinins 的反應完全不同: iPA 及 zeatin 可對蕹菜幼苗的生長有助長而對水稻幼苗的生長卻無幫助。而 adenine 對水稻幼苗 生長的助長效率要比對蕹菜幼苗的為佳。 這些結果可建議此兩種不同植物品種對於 adenine,iPA 與 zeatin 的代謝調節系統完全不同。 |
英文摘要 | Effects of three structure-related cytokinins adenine, isopentenyladenine (iPA) and zeatin, each dissolved in Hoagland nutrient solutions at various low concentrations, on seedling growth of water convolvulus (cv. Large leaf) and rice (cv. Tai-Keng 3) were compared. The results showed that in water convolvulus seedling growth, adenine solution at 10 �笐� M, iPA and zeatin solutions both at 10 ���� to 10 ���� M promoted and in rice seedling growth, adenine solutions at 10 ���m to 10 ���| M were effective, while iPA solutions (10 ���m to 10 ���| M) showed no effects and zeatin solutions at 10 �� �� to 10 ���| M inhibited. These results indicate that two distinctly responding systems to these cytokinins exist between these two plant species tested: one with high activity of iPA and zeatin in water convolvulus seedlings, while the other with no promoting activity of iPA and zeatin in rice seedlings. In addition, adenine is much more efficient for upgrading rice seedling growth than for water convolvulus seedling growth. These results thus suggest that the metabolic regulation systems for adenine, iPA and zeatin are totally different between these two plant species tested. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。