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http://dx.doi.org/10.5352/JLS.2015.25.8.903

Development of Loop-mediated Isothermal Amplification (LAMP) for Detection of Vibrio alginolyticus  

Hong, Seung-hyun (Department of Aquatic Biomedical Sciences, Jeju National University)
Heo, Moon-Soo (Department of Aquatic Biomedical Sciences, Jeju National University)
Publication Information
Journal of Life Science / v.25, no.8, 2015 , pp. 903-909 More about this Journal
Abstract
Loop-mediated isothermal amplification (LAMP), a PCR-based diagnostic method, is based on autocycling strand displacement DNA synthesis in the presence of exonuclease-negative Bst DNA polymerase under isothermal conditions. With the help of four specific primers that recognize six different sequences of a target DNA, LAMP has high specificity in pathogenic identification in a short time. Hence, in the present study, LAMP is used as a diagnostic tool in the identification of the most dreadful aquatic pathogenic species, Vibrio alginolyticus, and to develop species-specific LAMP primers and optimization of LAMP reaction conditions such as annealing temperature, elongation time, and other PCR chemical concentrations, including MgSO4, dNTPs, Betaine, and Bst polymerase. The optimized LAMP primers were also checked for specificity with other Vibrio species, which showed that the designed primers were very specific to V. alginolyticus After the first introduction of a species name like this one, the first part (“Vibrio” in this case) should be abbreviated to only the first letter.only. These are usually the most harmful pathogens of the Vibrio species that appear in shrimp and crabs. The results also revealed that the LAMP assay could be 10-fold more sensitive than conventional PCR in detecting V. alginolyticus. This could be the first report on using a rapid and highly sensitive technique, the LAMP assay, in the effective diagnosis of the pathogenic bacteria V. alginolyticus, which could help in the early detection of diseases, particularly in aquaculture.
Keywords
LAMP (Loop-mediated Isothermal Amplification); PCR; primer; streptococcus alginolyticus;
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