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Rapid, specific, simple, in-field detection ofXanthomonas campestrispathovarmusacearumby loop-mediated isothermal amplification
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Hodgetts, J., Hall, J., Karamura, G., Grant, Murray, Studholme, David J., Boonham, N., Karamura, E. and Smith, J. J. (2015) Rapid, specific, simple, in-field detection ofXanthomonas campestrispathovarmusacearumby loop-mediated isothermal amplification. Journal of Applied Microbiology, 119 (6). pp. 1651-1658. doi:10.1111/jam.12959
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Official URL: http://dx.doi.org/10.1111/jam.12959
Abstract
Aims
To develop and evaluate a loop-mediated isothermal amplification (LAMP) assay for Xanthomonas campestris pathovar musacearum (Xcm), the causal agent of banana Xanthomonas wilt, a major disease of banana in Africa.
Methods and Results
LAMP primers were designed to the general secretion pathway protein D gene and tested against 17 isolates of Xcm encompassing the known genetic and geographic diversity of the bacterium and all isolates were detected. Seventeen other Xanthomonas isolates, including closely related Xanthomonas vasicola, other bacterial pathogens/endophytes of Musa and two healthy Musa varieties gave negative results with the LAMP assay. The assay showed good sensitivity, detecting as little as 51 fg of Xcm DNA, a greater level of sensitivity than that of an Xcm PCR assay. Amplification with the LAMP assay was very rapid, typically within 9 min from bacterial cultures. Symptomatic field samples of Musa from Uganda were tested and all produced amplification in less than 13 min.
Conclusions
The LAMP assay provides rapid, sensitive detection of the pathogen that is ideally suited for deployment in laboratories with basic facilities and in-field situations.
| Item Type: | Journal Article | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science > Life Sciences (2010- ) | ||||||||||
| Journal or Publication Title: | Journal of Applied Microbiology | ||||||||||
| Publisher: | Wiley-Blackwell Publishing Ltd. | ||||||||||
| ISSN: | 1364-5072 | ||||||||||
| Official Date: | November 2015 | ||||||||||
| Dates: |
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| Volume: | 119 | ||||||||||
| Number: | 6 | ||||||||||
| Page Range: | pp. 1651-1658 | ||||||||||
| DOI: | 10.1111/jam.12959 | ||||||||||
| Status: | Peer Reviewed | ||||||||||
| Publication Status: | Published | ||||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||||
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