Christ D, Lämmler C
Fachbereich Veterinärmedizin, Justus-Liebig-Universität, Giessen.
Berl Munch Tierarztl Wochenschr. 1992 Jul 1;105(7):224-30.
Streptococcus uberis, as one of the principal causes of bovine streptococcal mastitis, has been characterized serologically and biochemically. Serological grouping of S. uberis revealed polysaccharide antigens of groups E, G, P and U. The biochemical properties of S. uberis, determined with the Strep-Zym identification system, differed clearly from those of S. agalactiae and S. dysgalactiae. Some cultures of S. uberis produced the enzymes hyaluronidase and neuraminidase. In addition S. uberis partly demonstrated CAMP-like synergistic hemolytic activities on sheep blood agar, reacted specifically with the lectins from Helix pomatia and Dolichos biflorus and produced bacteriocin-like inhibitors. This reactions, possibly of importance as virulence factors, as well as "DNA-fingerprinting" of S. uberis, might serve as individual markers of the respective cultures in epidemiological studies.
乳房链球菌作为牛链球菌性乳腺炎的主要病因之一，已在血清学和生物化学方面得到了表征。乳房链球菌的血清学分型揭示了E、G、P和U组的多糖抗原。用链球菌酶鉴定系统测定的乳房链球菌的生化特性与无乳链球菌和停乳链球菌明显不同。一些乳房链球菌培养物产生透明质酸酶和神经氨酸酶。此外，乳房链球菌在绵羊血琼脂上部分表现出CAMP样协同溶血活性，与来自苹果螺和双花扁豆的凝集素发生特异性反应，并产生类细菌素抑制剂。这些可能作为毒力因子的反应，以及乳房链球菌的“DNA指纹图谱”，在流行病学研究中可能作为各个培养物的个体标记。
