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  • Title: Molecular detection of nine rice viruses by a reverse-transcription loop-mediated isothermal amplification assay.
    Author: Le DT, Netsu O, Uehara-Ichiki T, Shimizu T, Choi IR, Omura T, Sasaya T.
    Journal: J Virol Methods; 2010 Dec; 170(1-2):90-3. PubMed ID: 20837064.
    Abstract:
    A reverse-transcription loop-mediated isothermal amplification (RT-LAMP) assay was established for the detection of nine viruses from infected rice plants, including rice black-streaked dwarf virus (RBSDV), rice dwarf virus (RDV), rice gall dwarf virus (RGDV), rice ragged stunt virus (RRSV), rice transitory yellowing virus (RTYV), rice stripe virus (RSV), rice grassy stunt virus (RGSV), rice tungro spherical virus (RTSV), and rice tungro bacilliform virus (RTBV). Virus-specific primer sets were designed from the genome sequences of these viruses. By the combination of RNA rapid extraction and RT-LAMP, these nine viruses could be detected within 2h from infected rice plants. The sensitivities of the assays were either higher than (for RSV, RTBV, and RTYV) or similar (for RDV) to those of one-step RT-PCR. Furthermore, RTBV and RTSV were detected not only in infected rice plants but also in viruliferous insect vectors. The RT-LAMP assays may facilitate studies on rice disease epidemiology, outbreak surveillance, and molecular pathology.
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