A molecular insight of some probiotic bacteria to address their antagonistic activity against pathogenic vibrios causing shrimp mortality

Authors

  • Tasmia Farzana Department of Microbiology, University of Dhaka, Dhaka 1000
  • Shafiqur Rahman Department of Microbiology, University of Dhaka, Dhaka 1000
  • M Niamul Naser Department of Zoology, University of Dhaka, Dhaka-1000
  • Muhammad Manjurul Karim Department of Microbiology, University of Dhaka, Dhaka 1000

DOI:

https://doi.org/10.3329/jbas.v37i1.15688

Keywords:

Probiotic bacteria, Antibiotic, Vibrios, Plasmid

Abstract

The molecular basis of antagonistic activity of a number of probiotic bacteria was analyzed using plasmid curing method. Earlier, six bacteria having potential probiotic activity under laboratory conditions were screened from 96 isolates which were obtained from shrimp rearing environment from south-west coastal region of Bangladesh. Among the isolated probionts, five were subjected to plasmid curing method and three were found to harbor plasmids, as was revealed in an agarose gel electrophoresis. Curing of these plasmids demonstrated that the bacteria lost its antagonistic activity, indicating the activity could be plasmid-borne. The antagonistic activities of the rest two isolates however, were not plasmid-oriented as no plasmid was recovered from them.

DOI: http://dx.doi.org/10.3329/jbas.v37i1.15688

Journal of Bangladesh Academy of Sciences, Vol. 37, No. 1, 115-120, 2013

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Published

2013-07-14

How to Cite

Farzana, T., Rahman, S., Naser, M. N., & Karim, M. M. (2013). A molecular insight of some probiotic bacteria to address their antagonistic activity against pathogenic vibrios causing shrimp mortality. Journal of Bangladesh Academy of Sciences, 37(1), 115–120. https://doi.org/10.3329/jbas.v37i1.15688

Issue

Vol. 37 No. 1 (2013)

Section

Short Communication