浙江农业科学 ›› 2026, Vol. 67 ›› Issue (7): 1698-1704.DOI: 10.16178/j.issn.0528-9017.20250659

• 药用植物 • 上一篇    下一篇

不同茬口对白条党参根腐病及其根际土壤真菌群落的影响

李娟(), 安建华, 王文慧, 刘小娟, 石娟娟, 魏周全()   

  1. 定西市植保植检站,甘肃 定西 743000
  • 收稿日期:2025-09-10 出版日期:2026-07-11 发布日期:2026-07-27
  • 通讯作者: 魏周全
  • 作者简介:魏周全,E-mail:15826866014@qq.com
    李娟,主要从事药材根腐病相关研究。E-mail:juanliyf@163.com
  • 基金资助:
    定西市科技计划项目(DX2023BY04);甘肃省农业农村厅科技支撑项目(KJZC-2026-21)

Effect of different crop rotations on root rot and rhizosphere soil fungal communities of Baitiao Codonopsis pilosula

LI Juan(), AN Jianhua, WANG Wenhui, LIU Xiaojuan, SHI Juanjuan, WEI Zhouquan()   

  1. Dingxi Plant Protection and Quarantine Station,Dingxi 743000,Gansu
  • Received:2025-09-10 Online:2026-07-11 Published:2026-07-27
  • Contact: WEI Zhouquan

摘要:

为探究不同茬口对白条党参根腐病及其根际土壤真菌群落的影响,本研究采用高通量测序技术对不同茬口白条党参根际土壤中的真菌微生物组成进行分析,不同茬口包含玉米-小麦-党参(C1)、小麦-蚕豆-党参(C2)、马铃薯-小麦-党参(C3)、黄芪-党参-党参(C4)。结果表明,各茬口的优势菌门均为子囊菌门(Ascomycota),而各茬口的被孢霉门(Mortierellomycota)、被孢霉纲(Mortierellomycetes)、腐质霉属(Humicola)的相对丰度均表现为健康株大于病株,表明病株的真菌群落丰度有下降趋势。FUNGuild预测根际土壤真菌的营养型和功能群发现,各茬口植物病原体的相对丰度均表现为病株大于健康株。比较各茬口发病率发现,茬口小麦-蚕豆-党参发病率最低,其次是玉米-小麦-党参。综合来看,茬口小麦-蚕豆-党参可以有效减少根腐病发生,可能与增加土壤菌群丰富度有关。

关键词: 白条党参, 根腐病, 根际土壤, 真菌群落

Abstract:

To explore the effects of different crop rotations on root rot of Baitiao Codonopsis pilosula and its rhizosphere soil fungal community,this study used high-throughput sequencing technology to analyze the composition spectrum of fungal microbiota in the rhizosphere soil of Baitiao Codonopsis pilosula under different crop rotations, including maize-wheat-Codonopsis pilosula(C1),wheat-broad bean-Codonopsis pilosula(C2),potato-wheat-Codonopsis pilosula(C3),and Astragalus membranaceus-Codonopsis pilosula-Codonopsis pilosula(C4). The results showed that Ascomycota was the dominant phylum in all crop rotations. The relative abundances of Mortierellomycota,Mortierellomycetes,and Humicola in healthy plants were higher than those in diseased plants across all crop rotations,indicating that the soil fungal community abundance of Baitiao Codonopsis pilosula plants with root rot showed a decreasing trend. FUNGuild predicted the nutritional types and functional groups of rhizosphere soil fungi,revealing that the relative abundance of plant pathogens in all crop rotations was consistently higher in diseased plants than in healthy plants. Comparing the incidence rate of all crop rotations,we found that the incidence rate of root rot of wheat-broad bean-Codonopsis pilosula was the lowest,followed by maize-wheat-Codonopsis pilosula. Overall,crop rotation of wheat-broad bean-Codonopsis pilosula can effectively reduce the incidence of root rot,which may be related to increasing soil microbial abundance.

Key words: Baitiao Codonopsis pilosula, root rot, rhizosphere soil, fungal community

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