期刊
JOURNAL OF VIROLOGICAL METHODS
卷 200, 期 -, 页码 35-40出版社
ELSEVIER
DOI: 10.1016/j.jviromet.2014.01.017
关键词
Solanum lycopersicum; qRT-PCR; LAMP assay; Field disease diagnosis
资金
- USDA, National Institute of Food and Agriculture's Specialty Crop Research Initiative programs [SCRI 2010-600-25320, SCRI 2012-01507-229756]
Tomato necrotic stunt virus (ToNStV) is an emerging potyvirus that causes severe stunting to infected tomato plants. A reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay was developed for sensitive detection of ToNStV. The sensitivity of RT-LAMP was comparable to that of conventional RT-PCR, with detection of ToNStV in a reaction containing only 8 pg of total tomato RNA or with 1:20,000 dilution of crude tissue extract. This assay was able to detect ToNStV in a broad range of solanaceous plant species. The RT-LAMP for ToNStV was specific with no cross-reactivity to other potyviruses (i.e. Potato virus Y and Tobacco etch virus), as well as several other common tomato viruses. RT-LAMP should complement RT-PCR and real-time RT-PCR assays reported previously, with a potential to provide a simple, rapid, and sensitive field diagnostic method for ToNStV. Published by Elsevier B.V.
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