Virulence factors were compared in Aeromonas species isolated from clinically normal and septicaemic farmed frogs from Thailand. Haemolysin activities against frog erythrocytes were significantly different within the collection of aeromonads. Groups of high haemolytic activity (unspeciated Aeromonas, Au), moderate haemolytic activity (A. hydrophila), and low haemolytic activity (A. veronii biov...

Aeromonas hydrophila sodium-driven polar flagellum has a complex stator-motor. Consist of two sets of redundant and non-exchangeable proteins (PomA/PomB and PomA2/PomB2), which are homologs to other sodium-conducting polar flagellum stator motors; and also two essential proteins (MotX and MotY), that they interact with one of those two redundant pairs of proteins and form the T-ring. In this wo...

AIM This study was revealed the potential of Peperomia pellucida leaf extract as an immunostimulator agent in controlling motile aeromonad septicemia due to Aeromonas hydrophila in red hybrid tilapia, Oreochromis sp. MATERIALS AND METHODS In the present study, minimum inhibitory concentration (MIC) of P. pellucida leaf extract against A. hydrophila was determined through two-fold microbroth d...

Multiple infections of several bacterial species are often observed under natural farm conditions. The would cause a much more significant loss compared to single infectious agent. Vaccination is an essential strategy prevent diseases in aquaculture, and oral vaccination has been proposed as promising technique since it requires no handling the fish easy perform. This research attempts develop ...

The inappropriate use of antibiotics, one the causes high incidence antimicrobial-resistant bacteria isolated from aquatic ecosystems, represents a risk for organisms and welfare humans. This study aimed to determine antimicrobial resistance rates among riverine Aeromonas spp., taken as representative autochthonous microbiota, evaluate level antibacterial in Tua River (Douro basin). prevalence ...

Vibrio anguillarum causes a fatal hemorrhagic septicemia in marine fish that leads to great economical losses in aquaculture world-wide. Vibrio anguillarum strain NB10 serotype O1 is a Gram-negative, motile, curved rod-shaped bacterium, isolated from a diseased fish on the Swedish coast of the Gulf of Bothnia, and is slightly halophilic. Strain NB10 is a virulent isolate that readily colonizes ...