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烟草疫霉的快速分子检测 被引量:10

A Rapid Method to Detect Phytophthora nicotianae by PCR
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摘要 根据烟草疫霉与其他疫霉菌ITS序列的差异设计了1对寡聚核苷酸引物,用于烟草疫霉的PCR检测。结果表明,在优化的反应体系与扩增条件下,该对引物表现出强特异性,只在烟草疫霉为模板的扩增体系中具有1条660 bp的条带。利用此特异性引物可稳定地从含有烟草疫霉的土壤及其发病组织中检测出病原菌。本实验提供并完善了一套快速检测烟草疫霉的方法和技术,特别对土传病害的准确诊断与快速检测在实践和理论上具有重要意义。 According to the sequence of internal transcribed spacer regions(ITS) of the ribosomal gene,a pair of specific primers for Phytophthora nicotianae was synthesized.In the optimization of reaction conditions and amplification,only a single band of PCR product about 660 bp was amplified from P.nicotianae in soil or the diseased tobacco tissues.In this study,we provided a rapid method to detect P.nicotianae.It has great significance for accurate diagnosis and rapid detection of the soil-borne pathogen.
出处 《云南农业大学学报(自然科学版)》 CAS CSCD 北大核心 2012年第2期156-159,共4页 Journal of Yunnan Agricultural University:Natural Science
基金 中国烟草主要病虫害标本资源库的构建项目(2010YN18) 云南烟草有害生物调查研究项目(2010YN19) 科技计划项目专项(09YN005)
关键词 烟草疫霉 特异引物 分子检测 Phytophthora nicotianae specific primer molecular detection
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