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題 名 | Construction and Evaluation of Immunogenicity of a Crp Mutant of Pasteurella Multocida Isolated from Chickens=禽源多殺性巴斯德桿菌Crp基因突變株之構築與免疫效力評估 |
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作 者 | 吳靜如; 沈瑞鴻; 謝快樂; 龔順榮; 張伯俊; | 書刊名 | 臺灣獸醫學雜誌 |
卷 期 | 33:2 2007.06[民96.06] |
頁 次 | 頁72-80 |
分類號 | 437.243 |
關鍵詞 | 巴斯德桿菌; 馴化活菌疫苗; 家禽霍亂; Pasteurella multocida; Crp; Live-attenuated vaccine; Fowl cholera; |
語 文 | 英文(English) |
中文摘要 | 細菌之crp基因可表現cAMP接受體蛋白,是細菌在營養代謝過程中一個重要的調控因子。本研究成功構築禽源多殺性巴斯德桿菌crp基因缺損突變株。毒力試驗結果顯示,crp基因缺損菌株之毒力遠低於其野外菌株,以crp基因缺損菌株免疫難隻時,只要接種劑量≥10^8 CFU就能夠完全的保護雞隻抵抗其野外菌株與標準菌株X-73之攻毒感染。因此crp基因是建立多殺性巴斯德桿菌馴化菌株之良好目標基因,且crp基因缺損菌株具有被開發成為多殺性巴斯德桿菌馴化活菌疫苗之潛力。 |
英文摘要 | The crp gene encodes cAMP receptor protein (CRP), which is an important regulator of nutrient metabolism in bacteria. In this study, we constructed a crp mutant of Pasteurella multocida isolated from chickens. Virulence tests showed that the crp mutant was highly attenuated when compared with its parental wildtype strain. Chickens immunized with ≥10^8 CFU of the crp mutant were completely protected against challenge with its parental strain and strain X-73. The crp gene of P. multocida is a good target for constructing an attenuated strain and the crp mutant of P. multocida has the potential to serve as a live-attenuated vaccine strain for the control of P. multocida infection. |
本系統中英文摘要資訊取自各篇刊載內容。