Recombinase polymerase amplification assay for sensitive and rapid detection of southern rice black-streaked dwarf virus in plants

J Virol Methods. 2022 Mar:301:114467. doi: 10.1016/j.jviromet.2022.114467. Epub 2022 Jan 13.

Abstract

Southern rice black-streaked dwarf virus (SRBSDV) naturally infects rice and maize plants through white-backed planthopper (Sogatella furcifera) causing significant crop losses in China and Vietnam. Thus, rapid and accurate detection methods for SRBSDV are urgently needed. Recombinase polymerase amplification (RPA) is a novel technique for rapid and sensitive detection of nucleic acids. In this research, a reverse transcription (RT)-RPA-based method was developed for the detection of SRBSDV. A pair of RPA primers targeting the conserved sequences within the SP10 (major coat protein) gene on genomic RNA S10 of SRBSDV were designed. The assay was performed in a single tube at 39 °C for 20 min and demonstrated that the RPA assay is an efficient alternative for rapid detection of SRBSDV.

Keywords: Fijivirus; RPA; Virus detection.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Oryza*
  • Plant Diseases
  • Recombinases
  • Reoviridae* / genetics

Substances

  • Recombinases

Supplementary concepts

  • Southern rice black-streaked dwarf virus