维诺格拉德斯基氏菌属对阿米巴鳃病发病率和严重程度的浓度效应。

Concentration effects of Winogradskyella sp. on the incidence and severity of amoebic gill disease.

作者信息

Embar-Gopinath Sridevi, Crosbie Philip, Nowak Barbara F

机构信息

School of Aquaculture and Aquafin CRC, University of Tasmania, Locked Bag 1370, Launceston, Tasmania 7250, Australia.

出版信息

Dis Aquat Organ. 2006 Nov 21;73(1):43-7. doi: 10.3354/dao073043.

DOI:10.3354/dao073043

PMID:17240751

Abstract

To study the concentration effects of the bacterium Winogradskyella sp. on amoebic gill disease (AGD), Atlantic salmon Salmo salar were pre-exposed to 2 different doses (10(8) or 10(10) cells 1(-1)) of Winogradskyella sp. before being challenged with Neoparamoeba spp. Exposure of fish to Winogradskyella sp. caused a significant increase in the percentage of AGD-affected filaments compared with controls challenged with Neoparamoeba only; however, these percentages did not increase significantly with an increase in bacterial concentration. The results show that the presence of Winogradskyella sp. on salmonid gills can increase the severity of AGD.

摘要

为研究维诺格拉德斯基菌属（Winogradskyella sp.）对阿米巴鳃病（AGD）的浓度效应，在感染新帕变形虫属（Neoparamoeba spp.）之前，将大西洋鲑（Salmo salar）预先暴露于2种不同剂量（10⁸或10¹⁰个细胞/升）的维诺格拉德斯基菌属。与仅感染新帕变形虫的对照组相比，鱼类暴露于维诺格拉德斯基菌属会导致受AGD影响的鳃丝百分比显著增加；然而，随着细菌浓度的增加，这些百分比并未显著增加。结果表明，鲑鱼鳃上存在维诺格拉德斯基菌属会增加AGD的严重程度。