Paper Information

Journal:   BIOLOGICAL JOURNAL OF MICROORGANISM   WINTER 2016 , Volume 4 , Number 16; Page(s) 43 To 48.
 
Paper: 

DETECTION OF VIBRIO SPECIES ISOLATED FROM ORNAMENTAL GUPPY FISH IN KASHAN, ISFAHAN, IRAN FISH CULTURING POUNDS

 
 
Author(s):  KIANI SAMIRA, NAGHAVI NAFISEH SADAT*, NAZARI ALIREZA
 
* DEPARTMENT OF MICROBIOLOGY, FALAVARJAN BRANCH, ISALMIC AZAD UNVERSITY, ISFAHAN, IRAN
 
Abstract: 

Introduction: Gram-negative bacteria are the most pathogenic bacteria for marine organisms including ornamental fish.
Materials and methods: In the present study Vibrio species isolated from ornamental guppy fish in Kashan, Isfahan, Iran fish ponds and were detected according to molecular detection and genetic alignment. Liver, kidney, skin, brain and gill samples were taken from ornamental guppy fish in Kashan, Isfahan, Iran. Samples were cultured on enriched culture media and purification steps were performed based on microbiological methods. Primary identification was done using biochemical characterization of the isolated bacteria. Molecular detection was done based on amplification of 16SrDNA sequence of Vibrio cholera genome containing ITS (internal transcribed spacer); and sequence alignment of the amplified nucleotides.
Results: The isolated bacteria detected as Vibrio spp., including Vibrio cholera (99% sequence similarity), Vibrio alginolyticus, Vibrio mimicus and Vibrio parahaemolyticus (up to 90% similarity in the genome sequence). The aquaculture ponds had alkaline water and the amount of five-day BOD was not in a safe range, which are favorable conditions for Vibrio species.
Discussion and conclusion: Aquatic organisms in Iran can be carriers of human pathogens such as Vibrio species. The results obtained in the present study and similar investigations should be mentioned in aquaculture healthcare systems.

 
Keyword(s): VIBRIO SPP., ORNAMENTAL GUPPY FISH, GENETIC ALIGNMENT, WATER QUALITY
 
References: 
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