摘要
笛鲷烂鳃病是一种细菌性鱼病,其感染率高达62%,造成海水浮置网箱养殖的笛鲷死亡。从病鱼肝部分离到该致病菌,用其纯培养物进行易感动物人工感染获得成功。该菌为短杆状,大小为0.5~0.6×1.1×2.5μm;两端钝圆且微曲;无鞭毛、无芽孢、无荚膜,革兰氏染色阴性。本文还叙述了该菌的形态学、生理生化测定、培养特性等分类特征,初步认为该菌是一新属。
“Gill-Rot”disease of snapper is a bacterial fish disease,its infection rate reaches to 62%,which causes the snapper cultured in marine floating net cage martality. The Pathogenic bacterium was isolated from the liver of the diseased fish,and artificial infection with pure cultures to susceptive fish meet success.The bacterium is a short rod 0.5-0.6×1.1-2.5μm long,with rounded ends curved slightly,with nonflagellum,non- sporulating,no capsule,and Gram-pnegative in its stain reactions.The taxonomic analysis using morphological,physiological,and biochemical tests is conducted.And,the bacterium is pre- liminarily considered as a new genus.
关键词
笛鲷
烂鳃病
致病菌
snapper
“gill-rot”disease
pathogenic bacterium