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題 名 | 赤桉的剋他作用簡介=Brief Introduction to Allelopathic Effect of Eucalyptus (Eucalyptus camaldulensis) |
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作 者 | 黎凱允; 王相華; 許原瑞; 王慶裕; | 書刊名 | 中華民國雜草學會會刊 |
卷 期 | 32:1 2011.06[民100.06] |
頁 次 | 頁51-56 |
分類號 | 436.18 |
關鍵詞 | 赤桉; 剋他作用; 生物檢定; 水萃液; 精油; Eucalyptus; Allelopathy; Bioassay; Water extract; Essential oil; |
語 文 | 中文(Chinese) |
中文摘要 | 赤桉(Eucalyptus camaldulensis)為桃金孃科(Myrtaceae)桉樹屬(Eucalyptus)植物,原產於澳洲,剋他效果十分明顯。研究者以赤桉葉萃取物進行生物檢定(bioassay)之結果,顯示利用桉葉粉末及水萃液處理禾本科、豆科植物和莧科雜草的種子,皆能抑制發芽和影響胚根與胚軸伸長,而利用桉葉精油處理種子,更可達到100%的發芽抑制率。分析其精油主要成分為1,8-cineole及α-pinene 等單?類化合物,其中α-pinene對植株的傷害是引起氧化逆境產生活化氧族破壞膜系的完整性,造成離子滲漏現象;而1,8-cineole對於植物造成的毒害則為抑制植物細胞有絲分裂的進行。 |
英文摘要 | River red gum (Eucalyptus camaldulensis), native to Australia, has been reported that the secondary metabolites released from this plant have significant allelopathic effect. Based on the responses of several bioassay materials to allelochemicals released from river red gum, leaf powder and water extract inhibited seed germination and both radicle and hypocotyl elongation of weeds including Gramineae, Leguminosea and Amaranth spp.. In addition, essential oil of river red gum showed a complete inhibition of seed germination. The primary ingredients of this essential oil are two monoterpenes, i.e., 1,8-cineole and α-pinene, the former prevents cell mitosis and the latter promotes generation of reactive oxygen species and subsequent damage of cell membrane. |
本系統中英文摘要資訊取自各篇刊載內容。