Achieving precise dual detection: One-tube reverse transcription-recombinase aided amplification (RT-RAA) combined with lateral flow strip (LFS) assay for RNA and DNA target genes from pepper mild mottle virus and Colletotrichum species in crude plant samples

文献类型： 外文期刊

第一作者： Cao, Yuhao

作者： Cao, Yuhao;Yan, Dankan;Zhou, Huijie;Han, Kelei;Wan, Qionglian;Peng, Jiejun;Zheng, Hongying;Lin, Lin;Yan, Fei;Song, Xuemei;Cao, Yuhao;Yan, Dankan;Zhou, Huijie;Han, Kelei;Wan, Qionglian;Peng, Jiejun;Zheng, Hongying;Lin, Lin;Yan, Fei;Song, Xuemei;Yan, Dankan;Han, Kelei

作者机构：

关键词： Anthracnose; Dual RT RAA; LFS; On-site detection; PMMoV

期刊名称：TALANTA （ 影响因子：6.1； 五年影响因子：5.5 ）

ISSN： 0039-9140

年卷期： 2025 年 281 卷

页码：

收录情况： SCI

摘要： Ensuring the detection sensitivity of both RNA-derived and DNA-derived target genes in a single reaction has posed a significant challenge for on-site detection of plant pathogens. This challenge was addressed by developing a one-tube dual RT-RAA assay combined with LFS for the rapid on-site detection of pepper mild mottle virus (PMMoV) and four Colletotrichum species causing anthracnose in Solanaceous crops. By testing four different combinations of primer groups, two combinations were precisely adjusted within the dual RT-RAA system to balance amplification efficiency and maintain consistent levels of amplification in crude plant samples. Utilizing commercially accessible small-scale equipment and following a streamlined optimization strategy, the assay achieved a limit of detection of 0.32 copies/mu L of target genes in the reaction. Importantly, it demonstrated no cross-reactivity with other plant pathogens, thereby affirming the high sensitivity and specificity of the developed dual RT-RAA-LFS detection assay. Moreover, the entire process took only 25 min from sample collection to the visible presentation of results. The assay was validated with 60 field samples and 10 seed samples, producing results consistent with reverse transcription quantitative polymerase chain reaction (RT-qPCR). Notably, it successfully detected PMMoV in systemic leaves without visible symptoms three days post-inoculation, underscoring its effectiveness in early disease detection. This streamlined strategy offers a valuable approach for rapid, low-cost, and highly sensitive on-site simultaneous detection of RNA genome-contained PMMoV and DNA genome-contained Colletotrichum species.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序