华北农学报 ›› 2025, Vol. 40 ›› Issue (S1): 248-255. doi: 10.7668/hbnxb.20194844

所属专题: 杂粮作物 植物保护

• 资源环境·植物保护 • 上一篇    下一篇

谷子种子带线虫检测体系的建立及应用

张梦雅1, 龚珂珂1,2, 董志平1, 刘佳1, 马继芳1, 王永芳1, 刘磊1, 全建章1, 李志勇1, 白辉1   

  1. 1 河北省农林科学院 谷子研究所,农业农村部特色杂粮遗传改良与利用重点实验室(省部共建),河北省杂粮研究重点实验室,河北 石家庄 050035
    2 河南科技大学 农学院,河南 洛阳 471023
  • 收稿日期:2024-10-16 出版日期:2025-12-29
  • 通讯作者:
    李志勇(1976-),男,河北邯郸人,研究员,博士,主要从事谷子病害研究。
    白辉(1980-),女,河北石家庄人,研究员,博士,主要从事谷子抗病分子生物学研究。
  • 作者简介:

    张梦雅(1991-),女,河北辛集人,助理研究员,硕士,主要从事谷子病害研究。

    张梦雅、龚珂珂为同等贡献作者。

  • 基金资助:
    河北省农林科学院基本科研业务费试点经费包干制项目(HBNKY-BGZ-02); 国家自然科学基金项目(31872880); 国家现代农业产业技术体系专项(CARS-06-14.5-A25); 河北省现代农业产业技术体系建设专项资金(HBCT2024080204)

Establishment and Application of Detection System for Millet Seed with Aphelenchoides besseyi

ZHANG Mengya1, GONG Keke1,2, DONG Zhiping1, LIU Jia1, MA Jifang1, WANG Yongfang1, LIU Lei1, QUAN Jianzhang1, LI Zhiyong1, BAI Hui1   

  1. 1 Institute of Millet Crops,Hebei Academy of Agriculture and Forestry Sciences,Key Laboratory of Genetic Improvement and Utilization for Featured Coarse Cereals (Co-construction by Ministry and Province),Ministry of Agriculture and Rural Affairs,Key Laboratory of Minor Cereal Crops of Hebei Province,Shijiazhuang 050035,China
    2 College of Agriculture,Henan University of Science and Technology,Luoyang 471023,China
  • Received:2024-10-16 Published:2025-12-29

摘要:

为更好地解决谷子带线虫检测出现的假阳性问题,建立一种稳定、高效、低成本的谷子带病原线虫检测体系,以带线虫谷粒济谷20为供试材料,对医用棉纱布、粗尼龙纱布和细尼龙纱布3种介质包裹下洗脱的线虫数量进行比较;吸出单条线虫后,探究了切割、冻融、酶裂解等方法对提取单条线虫DNA的效果影响;并利用该体系对2018,2020,2021年来源不同种子公司共计109份谷子种子样品进行带线虫检测。最终确定的检测体系为:用细尼龙纱布包裹1.5 g种子浸泡4 h,混匀洗脱液后在显微镜下计数进行线虫定量,采用酶裂解法提取线虫DNA,利用贝西滑刃线虫特异性引物进行PCR扩增对谷子病原线虫定性。供检的109份谷子种子样本共检测出4份带线虫种子,每1.5 g带线虫量均为5条,病原线虫经分子鉴定为贝西滑刃线虫。先定量再定性的线虫检测体系可用于大批量谷子种子带线虫样本的快速检测,为谷子线虫病的早期诊断和监测防控提供技术支持。

关键词: 谷子线虫病, 贝西滑刃线虫, DNA提取, 特异性PCR, 快速检测

Abstract:

In order to better solve the problem of false positive in the detection of Aphelenchoides besseyi Christie and establish a stable,efficient and low cost detection system for millet seed of parasitic nematodes,using millet seed of nematodes Jigu 20 as experimental materials,the number of nematode eluted by medical cotton gauze,coarse nylon gauze and thin nylon gauze was compared.Three effect methods of DNA extraction,namely,cutting,freeze-thaw,enzymatic lysis were designed and compared in order to check their efficiency of DNA extraction from singlenematode.A total of 109 millet seed samples from different seed companies in 2018,2020 and 2021 were detected by the system.The final detection system was as follows:1.5 g seeds were wrapped in thin nylon gauze and soaked for 4 h,then the elution was mixed and counted under microscope for nematode quantification; the single nematode DNA was extracted by enzymatic lysis and characterized by PCR amplification with specific primers.The pathogenic nematodes were molecular-identified as Aphelenchoides besseyi.A total of 4 seed samples from 109 millet seed samples with 5 nematodes per 1.5 g were detected.The system with nematode quantification and qualification can be used for rapid detection of nematodes in large quantities of millet seed,providing technical support for the early diagnosis,monitoring,and prevention and control of millet nematode disease.

Key words: Millet nematode disease, Aphelenchoides besseyi, DNA extraction, Specific PCR, Rapid diagnosis

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引用本文

张梦雅, 龚珂珂, 董志平, 刘佳, 马继芳, 王永芳, 刘磊, 全建章, 李志勇, 白辉. 谷子种子带线虫检测体系的建立及应用[J]. 华北农学报, 2025, 40(S1): 248-255. doi: 10.7668/hbnxb.20194844.

ZHANG Mengya, GONG Keke, DONG Zhiping, LIU Jia, MA Jifang, WANG Yongfang, LIU Lei, QUAN Jianzhang, LI Zhiyong, BAI Hui. Establishment and Application of Detection System for Millet Seed with Aphelenchoides besseyi[J]. Acta Agriculturae Boreali-Sinica, 2025, 40(S1): 248-255. doi: 10.7668/hbnxb.20194844.