查詢結果分析
來源資料
相關文獻
- 疫病菌誘導蛋白elicitins之研究現況
- 活性氧在植物病害防禦上所扮演的角色
- Root Rot of Vegetable Pea Seedlings in Soilless Cultural System Caused by Pythium Aphanidermantum and P. Ultimum
- 環境因子對荔枝露疫病菌菌絲生長之影響
- 荔枝露疫病菌檢測用分子標記之建立
- First Report of Phytophthora Blight of White Arum Lily Caused by Phytophthora Meadii
- Ethambutol-Induced Pulmonary Infiltrates with Fever and Skin Rash: A Case Report
- Fish Induced Anaphylactic Reaction: Report of One Case
- 豬皮膠原蛋白膜誘發之組織病理學觀察
- 臺灣嘉德麗亞蘭疫病菌(Phytophthora palmivora)之形態與生理特性
頁籤選單縮合
題 名 | 疫病菌誘導蛋白elicitins之研究現況=Roles of Elicitins in the Biology of Phytophthora |
---|---|
作 者 | 劉瑞芬; | 書刊名 | 植物病理學會刊 |
卷 期 | 10:3 2001.09[民90.09] |
頁 次 | 頁97-104 |
分類號 | 373.9 |
關鍵詞 | 疫病菌; 誘導蛋白; 過敏性反應; 系統性誘導抗病; 腐霉菌; Elicitin; Hypersensitive response; Phytophthora; Pythium; Systemic acquired resistance; |
語 文 | 中文(Chinese) |
中文摘要 | Elicitins是在疫病菌 (Phytophthora) 及腐霉菌 (Pythium) 所發現的誘導蛋白,根據蛋白質結構及類緣分析結果,可將其區分為三群,大多數目前已被發現之elicitins屬於第一群,特性主要包括:(一)分子量人約為10 kDa,一般含98個胺基酸,且胺基酸序列在下同菌種間有相當程度之保守性,(二)對煙草引發過敏性反應,及(三)能夠誘導煙草產生系統性抗病反應。在煙草引發過敏性反應與系統性誘導抗病時,elicitin所啟動之訊息傳導機制與其他病原微生物所援用者有相似之處,但elicitin與煙草之交互作用顯然比其他系統還要複雜。此外,近來之研究發現elicitin具有固醇載體活性,由於Phytophthora與Pythium均不具有合成固醇之能力,其是否利用elicitin自植物細胞膜獲取固醇以供生長興繁殖之需,仍待深入探討,固醇載體活性是否為elicitin展現誘導活性之必要條件也待進一步釐清。 |
英文摘要 | Elicitins are structurally related proteins produced by species of Phytophthora and Pythium (oomycetes). Based on the overall structure of the proteins as well as the Phylogenetic analysis, elicitins may be divided into three classes. Class I encompasses most of the elicitin proteins identified thus far, with polypeptides of 98 amino acid residues and able to induce hypersensitive response as well as systemic acquired resistance in tobacco. Members of class II include elicitin sequences from P. cryptogea or P cinnamomi, which encode hyperaidic elicitin proteins with extra short hydrophilic C-terminal tails. Class III contains two elicitin-like proteins, INF2A and INF2B of P. infestans, which encode the conserved 98 amino acid elicitin Signature, followed by a C-terminal domain of about 70 amino acid residues. However, it is not clear whether INF2 can elicit defense response in plants Similar to the c1ass I elicitins. In addition to their role as elicitors of plant defense response, elicitins also exhibited a sterol-binding activity. Therefore, it might act as shuttles trapping the sterols from the host plants. This property opens new perspectives concerning the role of elicitins in plant-Phytophthora interactions. |
本系統中英文摘要資訊取自各篇刊載內容。