Primer and reagent kit capable of being used for detecting southern rice black-streaked dwarf virus (SRBSDV) as well as quantitative detection method of SRBSDV
A technology of black-streaked dwarf virus and southern rice, which is applied in the field of reagent kits and detection, and primers for plant virus detection. It can solve the problems of quantitative detection of SRBSDV virus, etc., and achieve the reduction of crop damage, high precision and good stability. Effect
Active Publication Date: 2013-03-06
HUNAN PLANT PROTECTION INST
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However, none of the existing technologies can quantitatively detect the viral content of SRBSDV
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Abstract
The invention discloses a primer and a reagent kit capable of being used for detecting southern rice black-streaked dwarf virus (SRBSDV) and also discloses a method for quantitatively detecting the SRBSDV by the reagent kit. According to the method, firstly, the primer is synthesized; then, an RNA (ribonucleic acid) extraction reagent kit is utilized for extracting RNA of the primer from samples; the RNA is used as a template, in addition, a cDNA (complementary deoxyribonucleic acid) synthetic reaction system is utilized for synthesizing cDNA, then, positive standard samples are prepared and are subjected to real-time fluorescence quantification PCR (polymerase chain reaction) procedure drawing, and a standard curve of circulation number-initial concentration logarithmic values with fluorescence signals reaching the threshold values is obtained; and finally, a real-time fluorescence quantification RT-PCR (reverse transcription-polymerase chain reaction) system is prepared by using the synthesized cDNA as the template, the amplified reaction is carried out through the real-time fluorescence quantification RT-PCR procedure, and the initial concentration value of the SRBSDV in the samples is measured according to the collected fluorescence signals and the standard curve. The method has the advantages that the precision is high, the stability is good, the repeatability is good, the specificity is high, the sensitivity is high, and the like.
Description
technical field The invention belongs to the technical field of plant virus molecular biology detection and identification, and in particular relates to a primer, a kit and a detection method for plant virus detection. Background technique Southern rice black-streaked dwarf virus (SRBSDV) is a new virus that seriously harms rice this year. Since 2009, disasters have broken out in the main rice-growing areas in southern my country. In 2010 alone, the southern rice black-streaked dwarf virus disease occurred in an area of more than 14 million mu, seriously threatening the safe production of rice in my country. Southern rice black-streaked dwarfvirus (SRBSDV) belongs to the Reoviridae family Fijivirus (Fijivirus), the virion is spherical, and the genome consists of 10 double-stranded RNA (dsRNA). Transmitted in a persistent manner by the white-backed planthopper (Sogatella furcifera Horvath). Symptoms of rice infestation are dwarf plants, dark green leaves, high tillers, ...
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IPC IPC(8): C12Q1/70C12Q1/68C12N15/11C12R1/94
Inventor 张松柏刘勇张德咏罗香文程菊娥彭静谭新球成飞雪朱春晖杨春晓
Owner HUNAN PLANT PROTECTION INST
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