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題名 | 柑桔潰瘍病菌生物膜形成與致病性調控機制及病害管理應用=Regulation of Biofilm Formation and Pathogenicity of Citrus Canker Bacteria and Its Application in Disease Management |
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作者 | 黃姿碧; Huang, T. P.; |
期刊 | 植物病理學會刊 |
出版日期 | 20130300 |
卷期 | 22:1 2013.03[民102.03] |
頁次 | 頁1-11 |
分類號 | 433.4 |
語文 | chi |
關鍵詞 | 生物膜; 柑桔潰瘍病菌; 致病過程; 微生物之訊息傳遞; 數量感知作用; Biofilm; Citrus canker bacteria; Microbial cell-cell signaling; Pathogenicity; Quorum sensing; |
中文摘要 | 亞洲型柑桔潰瘍病由Xanthomonas axonopodis pv. citri(syn. X. citri subsp. citri)所造成,為台灣及國際影響柑桔產業最具威脅之細菌性病害,不僅嚴重影響柑桔品質與產量,造成經濟上嚴重損失,亦是世界各國防檢疫單位所重視的病害。台灣近年來亦因此病害而限制本土產柑桔之外銷,各農政相關單位無不積極尋求解決方案,因此發展更有效之策略來防治柑桔潰瘍病勢在必行。微生物在葉表或根圈纏據形成生物膜與致病過程等生物機能受到細胞本身分泌與感應細胞外小分子量訊息分子的調控,此現象被稱之為微生物之訊息傳遞/溝通系統(microbial cell-cell signaling/ communication system)或數量感知作用(quorum sensing),而藉由化學藥劑或生物製劑干擾或抑制此訊息溝通路徑或調控功能,為國際間積極研發治療疾病藥劑或病害防治策略之嶄新標的。本文中主要彙整近年關於柑桔潰瘍病原於寄主植物纏據形成生物膜與致病之分子機制脈絡,並以如何干擾微生物生物膜形成及訊息溝通機制為例,探討應用此調控機制作為發展更有效之病害防治策略。 |
英文摘要 | Citrus bacterial canker caused by Xanthomonas axonopodis pv. citri is a devastating disease that resulted in great yield loss of various citrus cultivars worldwide. This disease is regulated under quarantine or eradication program in several countries. The emergence of the disease in Taiwan has become a limiting factor for exporting citrus fruits. The development of an effective strategy for the disease management is necessary. Microbes regulate their biological functions in response to the population density in the environment by secreting and sensing small signal molecules, and this phenomenon is referred to as microbial cell-cell signaling/ communication system or quorum sensing. The system regulates the process critical for formation of phyllosphere or rhizosphere biofilm and pathogenesis. Thus quorum sensing and biofilm formation have become novel targets for the development of therapeutic agents, and a treatment strategy for infections. Here I review the molecular mechanisms of biofilm formation and pathogenesis by citrus canker bacteria and provide insights of strategy for disease control by interference of biofilm formation and cell-cell communication system. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。