Protective Effects of Bacteriophages against Aeromonas hydrophila Species Causing Motile Aeromonas Septicemia (MAS) in Striped Catfish

Antibiotics
Tuan Son LeD İpek Kurtböke

Abstract

To determine the effectivity of bacteriophages in controlling the mass mortality of striped catfish (Pangasianodonhypophthalmus) due to infections caused byAeromonasspp. in Vietnamese fish farms, bacteriophages against pathogenicAeromonashydrophilawere isolated.A.hydrophila-phage 2 andA.hydrophila-phage 5 were successfully isolated from water samples from the Saigon River of Ho Chi Minh City, Vietnam. These phages, belonging to theMyoviridaefamily, were found to have broad activity spectra, even against the tested multiple-antibiotic-resistantAeromonasisolates. The latent periods and burst size of phage 2 were 10 min and 213 PFU per infected host cell, respectively. The bacteriophages proved to be effective in inhibiting the growth of theAeromonasspp. under laboratory conditions. Phage treatments applied to the pathogenic strains during infestation of catfish resulted in a significant improvement in the survival rates of the tested fishes, with up to 100% survival with MOI 100, compared to 18.3% survival observed in control experiments. These findings illustrate the potential for using phages as an effective bio-treatment method to control Motile Aeromonas Septicemia (MAS) in fish farms. This study provides further evidence tow...Continue Reading

References

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Dec 29, 2017·Current Microbiology·Tuan Son LeD Ipek Kurtbӧke

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Citations

Nov 7, 2019·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·H P S U ChandrarathnaJehee Lee
Apr 17, 2019·International Microbiology : the Official Journal of the Spanish Society for Microbiology·Helmy Mohamed El-BaharMadiha Salah Ibrahim
Sep 22, 2019·Microorganisms·J Manuel Bello-LópezGraciela Castro-Escarpulli

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Methods Mentioned

BETA
phage studies
transmission electron microscopy

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