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Pakistan Journal of Biological Sciences
  Year: 2004 | Volume: 7 | Issue: 2 | Page No.: 258-268
DOI: 10.3923/pjbs.2004.258.268
 
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Distribution of Aeromonas spp. Emphasizing on a Newly Identified Species Aeromonas sp. T8 Isolated from Fish and Aquatic Animals in Southeast Asia

M.M. Rahman, T. Somsiri , K. Tajima and Y. Ezura

Abstract:
Distribution pattern of a collection of 106 Aeromonas strains isolated from both healthy and epizootic ulcerative syndrome (EUS)-affected fish, septicaemic disease affected frog and turtle in Bangladesh, Japan, Malaysia, Philippines and Thailand was investigated. The study was conducted through the physio-biochemical characterization of the strains and subsequent confirmation by analysis of the 16S rDNA sequences of some randomly chosen representative strains from all identified phenotype. Special emphasis was given to confirm a group of strains, which belonged to a newly identified species Aeromonas sp. T8 by DNA-DNA hybridization method. The newly identified species Aeromonas sp. T8 group was particularly found in different species of EUS-affected fish in Philippines and Thailand. A. hydrophila subsp. hydrophila and A. hydrophila subsp. ranae was recovered from EUS of fish and septicaemic diseases of frog and turtle. A. hydrophila subsp. hydrophila was distributed in Bangladesh and Thailand while A. hydrophila subsp. ranae was found only in Thailand. A. veronii biotype sobria and A. veronii biotype veronii was found to be dispersed mostly in EUS-affected fish in different countries. A. jandaei was obtained from EUS-positive fish in Bangladesh and Malaysia but A. media from healthy fish in Bangladesh.
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How to cite this article:

M.M. Rahman, T. Somsiri , K. Tajima and Y. Ezura , 2004. Distribution of Aeromonas spp. Emphasizing on a Newly Identified Species Aeromonas sp. T8 Isolated from Fish and Aquatic Animals in Southeast Asia. Pakistan Journal of Biological Sciences, 7: 258-268.

DOI: 10.3923/pjbs.2004.258.268

URL: https://scialert.net/abstract/?doi=pjbs.2004.258.268

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