作　　者： ; ; ; ; ; ;

机构地区： 中山大学

出　　处： 《长江大学学报（自然科学版）》 2005年第2期53-56,11,共4页

摘　　要： 选用 GYK_1、Q_1、B_7三株毒力不同的嗜水气单胞菌(Aeromonas hydrophila)对剑尾鱼(Xi-phophorus helleri)进行了人工感染试验。结果显示 GYK_1、Q_1、B_7三株菌之间毒力存在明显差异:以GYK_1毒力最强,Q_1毒力次之,B_7毒力最弱。感染发病鱼呈现接种部位溃疡、腹水、败血等明显症状。病理组织学变化以全身溶血性贫血和广泛的组织细胞变性、坏死为主。 Xiphophorus helleri were sucesessfully infected on three strains of Aeromonas hydrophila(GYK_1,Q_1,B_7).There were significant difference of virulence among these Aeromonas hydrophila(GYK_1,Q_1,B_7) : GYK_1 was high-pathgenic strain,Q_1 was middle-pathogenic strain, and B_7 was low-pathogenic strain. Typical symptoms included ulceration, ascites and blood poisoning. Histo-pathological changes were characterized by extensive haemolytic anemia and extensive cells’ degeneration and necrosis.

关 键 词： 嗜水气单胞菌 剑尾鱼 组织病理学 致病性 人工感染试验 溶血性贫血 组织学变化 组织细胞 毒力 溃疡 接种 发病 腹水

领　　域： [农业科学] [农业科学] [生物学]