马铃薯腐烂茎线虫RPA-LFD可视化快速检测方法的建立
Development of RPA-LFD visualization assay for rapid detection of Ditylenchus destructor
查看参考文献36篇
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文摘
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马铃薯腐烂茎线虫是为害我国甘薯和马铃薯的一种重要植物病原线虫,也是我国重要的检疫性有害生物。为实现对该线虫的准确、快速且可视化的检测,本研究以马铃薯腐烂茎线虫rDNA-ITS序列为靶标构建了重组酶聚合酶结合侧流层析试纸条(RPA-LFD)的可视化快速检测体系。该体系可在39 ℃条件下15 min内特异性地完成对马铃薯腐烂茎线虫的检测,对A型(甘薯种群)和B型(马铃薯种群)单头线虫(J4)的检出底限均为3 125-1头线虫,可以直接对土壤和甘薯茎中的马铃薯腐烂茎线虫进行检测,灵敏度可达1头(J4)/ 10 g土壤和1头(J4)/ 2 g甘薯茎组织。该体系操作简便、成本低廉、结果可视,可为马铃薯腐烂茎线虫的早期预警和口岸检疫提供技术支撑。 |
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其他语种文摘
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Ditylenchus destructor is an important plant pathogenic nematode of sweet potato and potato, and also an important quarantine pest in China. To achieve accurate, rapid and visual detection of this nematode, the rDNA-ITS sequence of D. destructor was used as the target to construct the recombinase polymerase amplification combined with a lateral flow dipstick(RPA-LFD)visual rapid detection assay. The assay can detect D. destructor specifically within 15 min at 39 ℃, and the detection limit for a single nematode(J4)of type A(sweet potato population)and type B(potato population)is 3 125-1 nematodes. It can directly detect D. destructor in soil and sweet potato stem tissue, with a sensitivity of one J4 nematode per 10 g soil and one J4 nematode per 2 g plant tissue. In addition, the assay also has the advantages of simple operation, low cost and visual result. The assay will lay a foundation for the early warning and port quarantine of D. destructor. |
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来源
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植物病理学报
,2022,52(6):984-992 【核心库】
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DOI
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10.13926/j.cnki.apps.000613
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关键词
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马铃薯腐烂茎线虫
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重组酶聚合酶扩增
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侧流层析试纸条
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rDNA-ITS
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可视化快速检测
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地址
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河北省农林科学院植物保护研究所, 河北省农业有害生物综合防治工程技术研究中心;;农业部华北北部作物有害生物综合治理重点实验室, 保定, 071000
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0412-0914 |
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学科
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植物保护 |
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基金
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财政部和农业农村部:国家现代农业产业技术体系资助
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河北省农林科学院现代农业科技创新工程项目
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文献收藏号
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CSCD:7415493
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