Norfolk State University, Department of Biology, Norfolk, VA 23504, USA.
Vet Microbiol. 2013 Sep 27;166(1-2):270-5. doi: 10.1016/j.vetmic.2013.05.002. Epub 2013 May 20.
Streptococcosis is a common cause of pathology and mortality in fishes resulting in significant economic losses for the aquaculture industry. One etiologic agent of the disease, Streptococcus parauberis, has been associated with fish mortalities in Spain and Korea. Here we report the first identification of S. parauberis in wild finfish in Chesapeake Bay, USA. Gram-positive cocci were isolated from the spleens of striped bass, Morone saxatilis, and identified via species-specific primers and 16S rRNA gene sequencing. Biochemical characterization and antibiotic susceptibility tests were used to compare local isolates to isolates infecting aquacultured fishes and dairy cattle. This is also the first report of a plasmid in S. parauberis from any host.
链球菌病是鱼类常见的病理学和致死原因，给水产养殖业造成了重大的经济损失。该疾病的一个病原体副猪链球菌已被证实与西班牙和韩国的鱼类死亡有关。本研究报告了在美国切萨皮克湾野生鱼类中首次发现副猪链球菌。从条纹鲈（Morone saxatilis）的脾脏中分离到革兰氏阳性球菌，通过种特异性引物和 16S rRNA 基因测序进行鉴定。生化特征和抗生素药敏试验用于比较本地分离株与感染水产养殖鱼类和奶牛的分离株。这也是首次从任何宿主中报道副猪链球菌的质粒。
