Serum resistance as a good indicator for virulence in Aeromonas hydrophila strains isolated from diseased fish in South‐East Asia

K. Y. LEUNG; I. V. YEAP; T. J. LAM; Y. M. SIN

doi:10.1111/j.1365-2761.1995.tb00355.x

Serum resistance as a good indicator for virulence in Aeromonas hydrophila strains isolated from diseased fish in South‐East Asia

K. Y. LEUNG, I. V. YEAP, T. J. LAM, Y. M. SIN^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

Abstract. Aeromonas hydrophila strains isolated from diseased fish in South‐East Asia were studied for their virulence in naive tilapia, Oreochrommis aureus (Steindachner), and blue gourami, Trichogaster trichopterus (Pallas). Five of the most virulent strains used in this study shared a common resistance to the killing effect of naive fish serum. Other factors such as lack of autoagglutination in 0.2% acriflavine, instability after boiling, production of an S‐layer, and proteases and haemolysins did not correlate well with virulence. In addition, serotyping could not group all the virulent strains. Therefore, serum resistance is considered as a good indicator for screening virulence of A. hydrophila strains isolated from diseased fish in South‐East Asia.

Original language	English
Pages (from-to)	511-518
Number of pages	8
Journal	Journal of Fish Diseases
Volume	18
Issue number	6
DOIs	https://doi.org/10.1111/j.1365-2761.1995.tb00355.x
State	Published - Nov 1995
Externally published	Yes

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title = "Serum resistance as a good indicator for virulence in Aeromonas hydrophila strains isolated from diseased fish in South‐East Asia",

abstract = "Abstract. Aeromonas hydrophila strains isolated from diseased fish in South‐East Asia were studied for their virulence in naive tilapia, Oreochrommis aureus (Steindachner), and blue gourami, Trichogaster trichopterus (Pallas). Five of the most virulent strains used in this study shared a common resistance to the killing effect of naive fish serum. Other factors such as lack of autoagglutination in 0.2% acriflavine, instability after boiling, production of an S‐layer, and proteases and haemolysins did not correlate well with virulence. In addition, serotyping could not group all the virulent strains. Therefore, serum resistance is considered as a good indicator for screening virulence of A. hydrophila strains isolated from diseased fish in South‐East Asia.",

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AU - LEUNG, K. Y.

AU - YEAP, I. V.

AU - LAM, T. J.

AU - SIN, Y. M.

PY - 1995/11

Y1 - 1995/11

N2 - Abstract. Aeromonas hydrophila strains isolated from diseased fish in South‐East Asia were studied for their virulence in naive tilapia, Oreochrommis aureus (Steindachner), and blue gourami, Trichogaster trichopterus (Pallas). Five of the most virulent strains used in this study shared a common resistance to the killing effect of naive fish serum. Other factors such as lack of autoagglutination in 0.2% acriflavine, instability after boiling, production of an S‐layer, and proteases and haemolysins did not correlate well with virulence. In addition, serotyping could not group all the virulent strains. Therefore, serum resistance is considered as a good indicator for screening virulence of A. hydrophila strains isolated from diseased fish in South‐East Asia.

AB - Abstract. Aeromonas hydrophila strains isolated from diseased fish in South‐East Asia were studied for their virulence in naive tilapia, Oreochrommis aureus (Steindachner), and blue gourami, Trichogaster trichopterus (Pallas). Five of the most virulent strains used in this study shared a common resistance to the killing effect of naive fish serum. Other factors such as lack of autoagglutination in 0.2% acriflavine, instability after boiling, production of an S‐layer, and proteases and haemolysins did not correlate well with virulence. In addition, serotyping could not group all the virulent strains. Therefore, serum resistance is considered as a good indicator for screening virulence of A. hydrophila strains isolated from diseased fish in South‐East Asia.

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Serum resistance as a good indicator for virulence in Aeromonas hydrophila strains isolated from diseased fish in South‐East Asia

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