Development of a Reverse Line Blot Hybridization method for Detection of some Streptococcal/Lactococcal Species the causative agents of Zoonotic Streptococosis/Lactococosis in farmed fish

摘要

Background and ObjectiveStreptococcosis/lactococcosis is the cause of high morbidity and mortality in aquaculture sector and to date a number of species of Streptococcus and Lactococcus genera including S. iniae, S. agalactiae, S. dysagalactiae, S. parauberis, S. feacalis, L. garvieae and L. lactis have been discriminated as the cause of disease in aquatic animals. Despite the use of diagnostic molecular methods for each of these bacterial species, no data is available on a suitable, rapid and simple simultaneous detection tool for these pathogens. This paper describes a simultaneous detection method which is PCR based on a reverse line blot (RLB) for rapid detection and differentiation of four species of genera of Streptococcus and Lactococcus genera consisting of S. iniae, S. agalactiae, S. parauberis and L. garvieae the most important agents of the disease in fish.