Emeruwa A C
Ann Microbiol (Paris). 1980 May-Jun;131(3):249-54.
High antibody titres and a single precipitin line of identity were obtained with hyperimmune rabbit serum prepared against filamentous cells of Nocardia asteroides strain 55 and the cells of three other strains of Nocardia, indicating the presence of a group antigen between the strains. High titres were also obtained with the hyperimmune serum and the three different cell forms (filamentous, rod-like and spherical cells) of the homologous strain, indicating that each developmental stage was highly antigenic. The antibodies were completely removed by absorption with the various cell forms, suggesting a similarity of the antigens. A single common antigen was demonstrated between the three developmental stages by immunodiffusion, indicating that there was no antigenic alteration occuring during morphogenesis of the genus Nocardia.
用针对星形诺卡菌55株丝状细胞制备的超免疫兔血清与其他三株诺卡菌的细胞反应，获得了高抗体滴度和一条单一的同一性沉淀线，表明这些菌株之间存在群抗原。用超免疫血清与同源菌株的三种不同细胞形态（丝状、杆状和球形细胞）反应也获得了高滴度，表明每个发育阶段都具有高度抗原性。通过用各种细胞形态进行吸收，抗体被完全去除，这表明抗原具有相似性。通过免疫扩散在三个发育阶段之间证明了单一的共同抗原，表明在诺卡菌属的形态发生过程中没有发生抗原改变。
