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Development of a visible loop mediated isothermal amplification assay for rapid detection of Bacillus anthracis

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Relation http://eprints.cmfri.org.in/15545/
https://www.sciencedirect.com/science/article/pii/S104510562030138X
10.1016/j.biologicals.2020.11.004.
 
Title Development of a visible loop mediated isothermal amplification assay for rapid detection of Bacillus anthracis
 
Creator Upadhyay, L
Chaturvedi, V K
Gupta, P K
Sunita, S C
Sumithra, T G
Prusty, B R
Yadav, A K
 
Subject Bacteria
Fish Biotechnology
Fish Diseases
 
Description Distressing effects on animal and human health with lethal progression, being used as bioweapon and shared features with non-pathogenic bacteria demands sensitive, specific, safe, cost effective and rapid detection methods for anthrax causing organisms. Conventional microbiology based diagnostics for anthrax are time consuming and need sophisticated equipment, while molecular diagnostics require less time and labor. The Loop mediated isothermal amplification assay (LAMP) is rapid, sensitive and specific assay and requires no specialized equipment. In the present study, we developed a LAMP assay for rapid as well as specific detection of Bacillus anthracis. The optimized assay produced positive results with the Sterne strain and one field isolate of B. anthracis and, negative results with other bacteria of the same and different genera within 2 h. Sensitivity was 500 fg of total DNA of B. anthracis, which was 100 times more sensitive than conventional PCR. The present study also demonstrated that the simple method of total DNA extraction by repeated boiling and freezing will not adversely affect the LAMP results. In conclusion, the optimized LAMP assay is a promising tool for the specific, sensitive, less time-consuming diagnosis for anthrax causing bacteria and also, for detecting the virulence of suspected B. anthracis culture
 
Publisher Elsevier
 
Date 2021
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/15545/1/Biologicals_2021_Sumithra%20TG.pdf
Upadhyay, L and Chaturvedi, V K and Gupta, P K and Sunita, S C and Sumithra, T G and Prusty, B R and Yadav, A K (2021) Development of a visible loop mediated isothermal amplification assay for rapid detection of Bacillus anthracis. Biologicals, 69. pp. 59-65. ISSN 1045-1056