E-ISSN 2536-9520 | ISSN 1110-2047
 
2025, Vol: 85
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Original Article
Online Published: 23 Dec 2022
 


Phenotypic and molecular characterization of vibrio species isolated from cultured marine Dicentrarchus labrax

Nelly Mamdouh, Samy A. Khalil, Mahmoud M. El-naggar, Fadel A..


Abstract
Vibrio species are the most common and serious pathogens in fish and shellfish marine aquaculture worldwide with high mortalities and morbidity, lead to great economic loss. Among all V. species infecting V.parahaemolyticus and V. alginolyticus taken the first place.The present study aimed to determine the prevalence of Vibrio species in seabass in addition detection of certain virulence genes. A total of 220 seabass seabass (Dicentrarchus labrax) had haemorrhage, erosion and ulcers in the skin ,gills,fin base and tail and were purchased from fish markets at from Alexandria, Behaira, lake Qarun and subjected to phenotypic bacteriological examination. revealed that the prevalence of 4 vibrio isolates was 1.8% (4/220) including two isolates of V. alginolyticus (one from liver and other from spleen) and two isolates of V. parahaemolyticus (one from liver and other from kidney). Molecular identification based on use of 16srRNA gene sequence confirmed 4 strains as vibrio species. Proving its pathogenicity through using primers for the virulence genes (trh, tlh, recA and categorized 2 isolates belong to vibrio alginolyticus (one with trh) and 2 isolates belong to vibrio parahaemolyticus (one with recA and tlh, the other with trh). The 4 strains of V. parahaemolyticus and V. alginolyticus were multi drug resistant (MDR),resist more than 3classes of antibiotics, which pose potential health hazards to consumers

Key words: V.parahaemolyticus ,V.alginolyticus, seabass fish virulance genes


 
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How to Cite this Article
Pubmed Style

Mamdouh N, Khalil SA, El-naggar MM, A. F. Phenotypic and molecular characterization of vibrio species isolated from cultured marine Dicentrarchus labrax. AJVS. 2023; 76(2): 49-57. doi:10.5455/ajvs.122126

Web Style

Mamdouh N, Khalil SA, El-naggar MM, A. F. Phenotypic and molecular characterization of vibrio species isolated from cultured marine Dicentrarchus labrax. https://www.alexjvs.com/?mno=122126 [Access: May 04, 2025]. doi:10.5455/ajvs.122126

AMA (American Medical Association) Style

Mamdouh N, Khalil SA, El-naggar MM, A. F. Phenotypic and molecular characterization of vibrio species isolated from cultured marine Dicentrarchus labrax. AJVS. 2023; 76(2): 49-57. doi:10.5455/ajvs.122126


Vancouver/ICMJE Style

Mamdouh N, Khalil SA, El-naggar MM, A. F. Phenotypic and molecular characterization of vibrio species isolated from cultured marine Dicentrarchus labrax. AJVS. (2023), [cited May 04, 2025]; 76(2): 49-57. doi:10.5455/ajvs.122126


Harvard Style

Mamdouh, N., Khalil, . S. A., El-naggar, . M. M. & A., . F. (2023) Phenotypic and molecular characterization of vibrio species isolated from cultured marine Dicentrarchus labrax. AJVS, 76 (2), 49-57. doi:10.5455/ajvs.122126


Turabian Style

Mamdouh, Nelly, Samy A. Khalil, Mahmoud M. El-naggar, and Fadel A.. 2023. Phenotypic and molecular characterization of vibrio species isolated from cultured marine Dicentrarchus labrax. Alexandria Journal of Veterinary Sciences, 76 (2), 49-57. doi:10.5455/ajvs.122126


Chicago Style

Mamdouh, Nelly, Samy A. Khalil, Mahmoud M. El-naggar, and Fadel A.. "Phenotypic and molecular characterization of vibrio species isolated from cultured marine Dicentrarchus labrax." Alexandria Journal of Veterinary Sciences 76 (2023), 49-57. doi:10.5455/ajvs.122126


MLA (The Modern Language Association) Style

Mamdouh, Nelly, Samy A. Khalil, Mahmoud M. El-naggar, and Fadel A.. "Phenotypic and molecular characterization of vibrio species isolated from cultured marine Dicentrarchus labrax." Alexandria Journal of Veterinary Sciences 76.2 (2023), 49-57. Print. doi:10.5455/ajvs.122126


APA (American Psychological Association) Style

Mamdouh, N., Khalil, . S. A., El-naggar, . M. M. & A., . F. (2023) Phenotypic and molecular characterization of vibrio species isolated from cultured marine Dicentrarchus labrax. Alexandria Journal of Veterinary Sciences, 76 (2), 49-57. doi:10.5455/ajvs.122126




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    About Alexandria Journal of Veterinary Sciences

    The Alexandria Journal of Veterinary Sciences (AJVS) Official Journal of Faculty of Veterinary Medicine, Alexandria University   ISSN: 1110 ... Read more.



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    Egypt.

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