Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (9): 2137-2146.DOI: 10.16178/j.issn.0528-9017.20250185

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Analysis of bacterial community strucure in rhizosphere soil of wild and cultivated Fritillaria thunbergii Miq. and exploration of the associated flora

CAI Long1(), SUN Jian1,2,*(), WANG Pan3, SHEN Yanghui3, JIANG Jianming1,2, WANG Zhian1   

  1. 1. Zhejiang Institute of Traditional Chinese Medicine, Hangzhou 310023, Zhejiang
    2. State Key Laboratory for Quality Insurance and Sustainable Use of Dao-di Herbs, Beijing 100700
    3. Pan'an Traditional Chinese Medicine Industry Innovation and Development Institute, Jinhua 322305, Zhejiang
  • Received:2025-03-13 Online:2025-09-11 Published:2025-10-14

Abstract:

In order to explore the changes of flora during the domestication and cultivation of Fritillaria thunbergii Miq., and screen the dominant associated flora, the rhizosphere soil samples of Fritillaria thunbergii Miq. from different growing environments were collected, 16S rDNA sequencing technology was used to statistical analysis and functional prediction of bacterial communities in the rhizosphere soil, and the dominant associated flora of Fritillaria thunbergii Miq. were screened. The results showed that the bacteria in rhizosphere soil of wild and cultivated Fritillaria thunbergii Miq. consisted of 51 phyla, 131 classes, 296 orders, 506 families, 1 105 genera, 1 929 species. The α diversity analysis of Shannon and Chao1 index showed that the diversity of colonies of wild Fritillaria thunbergii Miq. was higher than that of cultivated Fritillaria thunbergii Miq.. At the phylum classification level, the abundance of Firmicutes, Acidobacteriota and Myxococcota in the rhizosphere soil of wild Fritillaria thunbergii Miq. was higher than that of the cultivated group, which was 3.0 times higher than the average of the cultivated group. The abundance of Chloroflexi and Bacteroidota decreased, and was less than 30% of the average value of the cultivated group. At the genus level, the abundance of 11 genera including Ensifer in the rhizosphere soil of wild Fritillaria thunbergii Miq. was higher than the mean value of the cultivated group. The common associated bacteria genera of wild and cultivated Fritillaria thunbergii Miq. were Pseudomonas, Alphaproteobacteria, Bradyrhizobium, Burkholderia and Sphingomonas. This study laid a foundation for developing microbiological agent of Fritillaria thunbergii Miq., optimizing the cultivation mode and alleviating the disease of Fritillaria thunbergii Miq.

Key words: Fritillaria thunbergii Miq., bacteria in the rhizosphere soil, 16S rDNA

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