avian pathogenic Escherichia coli 禽致病性大肠杆菌 ; 禽病原性大肠杆菌
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Avian Escherichia coli pili antigen was detected with agar gel diffusion precipitin test.
用琼脂扩散沉淀反应检测了大肠杆菌菌毛抗原。
Objective: To study the effect of different fragments of PA gene on the expression of PA protein of avian influenza virus in Escherichia coli.
目的:通过在大肠杆菌中分段表达禽流感病毒聚合酶酸性蛋白(PA蛋白),探索PA基因中可能影响表达的区域。
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