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頁籤選單縮合
題 名 | 利用水耕培養檢定臺灣紅豆杉營養系之表現=Clonal Test of Taxus Mairei Using Water Culture |
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作 者 | 何政坤; 張淑華; 陳國峰; 蔡錦瑩; | 書刊名 | 臺灣林業科學 |
卷 期 | 22:2 2007.06[民96.06] |
頁 次 | 頁113-123 |
分類號 | 436.257 |
關鍵詞 | 營養系檢定; 紫杉烷類; 臺灣紅豆杉; 水耕; Clonal test; Taxanes; Taxus mairei; Water culture; |
語 文 | 中文(Chinese) |
中文摘要 | 將臺灣紅豆杉營養系T1、Nj11、K3與Wx之3月生扦插苗培養在稀釋成1/10與1/20濃度的Johson solution (JS)水耕液培養6、9、11月後,分別取樣分析。水耕時間從2000年3月開始,取樣之月份為9、12月與翌年2月。分析結果顯示每株植物生長量與10-deacetyl baccatin III (10-DAB)、紫杉醇(taxol)與6種紫杉烷類在2種JS水耕液濃度間差異不顯著,僅11月生苗的紫杉醇產量在1/20 JS有顯著較高。植物生長量與紫杉烷類產量在4營養系間及其3種器官:葉、莖、根中的變異極大。Wx營養系生長最差且生產紫杉烷類最少,Nj11生長最快且含有最多的紫杉烷類,T1生長量與K3相似,但含有較高的紫杉烷類。Nj11含有最多的10-DAB,11月生苗每株可生產5.83 mg;而T1則含有最多的紫杉醇,每株苗可生產1.16 mg。10-DAB在葉部含量最高,而紫杉醇在根部含量最高,不過T1的葉部所含的紫杉醇量高於根部。在9月份採收的植物所含10-DAB與紫杉醇濃度高於其他二個採收月份,因此11月生苗之生物量雖然最高,每株苗木紫杉烷類的產量增加不大。水耕苗的生長率與存活率都比盆栽苗佳,盆栽苗因死亡率過高而無法分析比較,因此以水耕是快速檢驗臺灣紅豆杉營養系表現的極佳工具。 |
英文摘要 | Three-mo-old rooted cuttings of Taxus mairei clones T1, Nj11, K3, and Wx were grown hydroponically in 1/10 and 1/20 strengths of Johnson’s nutrient solution (JS) for 6, 9 and 11 mo at which times (September, December and February), they were sampled and analyzed in March 2000. Both dry weights and the yields of 10-deacetyl baccatin III (10-DAB), taxol, and total taxanes per plant at the 3 harvesting times did not significantly differ between the 2 strengths of JS; only the 11- mo-old plants produced greater taxol in 1/20 JS. Great variations of these 2 parameters in 3 organs (leaves, stems and roots) of plants among the 4 clones were found. Wx grew poorly and produced few taxanes. Nj11 grew fast with the greatest amount of taxanes. T1 had a growth rate similar to K3, but with greater taxanes. Nj11 was a 10-DAB-rich clone, a 11-mo-old plant of which produced 5.83 mg. T1 was the taxol-rich clone, and it produced 1.16 mg per plant. 10-DAB was usually rich in needles, while taxol was rich in the roots. However, T1’s needles contained greater taxol than its roots. The concentrations of both 10-DAB and taxol were highest in December compared to the other 2 harvesting mo. Although 11-mo-old plants had the greatest biomass, the taxanes had only increased a little compared to 9-mo-old ones. Since most potted plants died and grew poorly during the culture period, the suggests that water culture is a good tool to rapidly evaluate the clonal performance of Taiwan yew. |
本系統中英文摘要資訊取自各篇刊載內容。