Differences in Some Biological Characteristics of Antigenically Variant Enterococcus seriolicida Substrains which Contribute to Virulence in Yellowtail, Seliola quinqueradiata.

概要

論文の詳細を見る
Pathogenic properties of <I>Enterococcus seriolicida</I>, a pathogen for yellowtail, were compared between substrains which have different virulence properties and antibody-mediated agglutination with the anti-serum against <I>Enterococcus seriolicida</I> type strain ATCC 19433. A virulent, nonagglutinating substrain {SS91-014 (N) } was significantly resistant to phagocytosis and intracellular killing by yellowtail peritoneal macrophages compared to an agglutinating, attenuated substrain {SS91-014 (A) } From adhesion assay, it was revealed that the number of adhered bacteria to yellowtail intestinal wall was higher in the virulent than in the attenuated substrain. The results indicate that the differences in the agglutination properties of the two substrains may contribute to their differences in resistance to phagocytosis and tissue attachment, which are the most important factors for virulence.
日本水産増殖学会の論文