serotype antigen 中文意思是什麼
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The result showed that the homology rate of pila gene among the 5 avian pathogenic e. coli strains tested and one human e. coli were from 89. 8 % to 91. 1 %, and the homology rate of amino acid were from 88. 5 % to 91. 8 %. the homology rate of pila gene sequence among 5 avian pathogenic e. coli strains tested and avian pathogenic e. coli reported ( serotype o1, o2, o78 ) were from 87. 8 % to 90. 2 %, and the homology rate of amino acid were from 84. 6 % to 91. 2 %. there had homology in avian pathogenic e. coli. there had some common antigen side in type 1 pili of avian pathogenic e. coli
結果表明：運用msha法檢測1型菌毛的檢出率為80 （ 36 45 ） ， pcr法的檢出率為95 . 5 （ 43 45 ） ， pcr方法用於1型菌毛的檢測比msha更加敏感、快速、特異性強；選擇5株優勢血清型雞源致病性大腸桿菌代表株（ o _ （ 89 ） ， o _ （ 119 ） ， o _ （ 141 ） ， o _ （ 127 ） ）的1型菌毛pila基因的pcr擴增片段經純化后，分別定向克隆到puc18質粒的多克隆位點，構建了含有目的基因片段的克隆質粒，並轉化到dh5株大腸桿菌載體菌中，篩選獲得陽性克隆菌株。
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