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Loss in the rare bacterial diversity drives the monocropping obstacle of cut chrysanthemum

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Abstract

Purpose

Uncovering the diversity of abundant and rare bacterial subcommunities in different years of continuous monocropping are essential to predict microbial community changes and understand soil functions in the cut chrysanthemum cropping system.

Methods

The Illumina MiSeq high-throughput sequencing platform was employed to analyze the composition, structure, and diversity of rare and abundant bacterial subcommunities in three different continuous monocropping years of cut chrysanthemum, namely, 1 year (Y1), 6 years (Y6), and 12 years (Y12)

Results

The short- (Y6) and long-term (Y12) monocropping significantly enhanced the alpha diversity (e.g., Shannon index) of the abundant bacterial subcommunity (P < 0.05), but Y6 and Y12 treatments had a completely opposite impact on the rare bacterial subcommunity, with a remarkable decline in the Y12 and an increase in the Y6. Both Y6 and Y12 significantly reshaped the subcommunity structure of rare and abundant bacteria; Y12 significantly enriched the Acidobacteria in both rare and abundant taxa and decreased the abundant taxa Proteobacteria, while Y6 mainly increased the relative abundance of Gemmatimonadetes in the abundant phylum. The imbalance of soil nutrients including carbon, nitrogen, and phosphorus drove alterations of abundant and rare subcommunities.

Conclusion

The monocropping obstacle of cut chrysanthemum may be attributed to the decrease in the rare bacterial diversity.

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Data Availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

References

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Acknowledgements

This work was jointly supported by grants from National Natural Science Foundation of China (Grant No. 42207367), Zhejiang Provincial Natural Science Foundation of China (Grant No. LGN20C150003; LGN22C150010), China Postdoctoral Science Foundation funded project (Grant No. 2022M711655), and Ningbo Public Welfare Science and Technology Plan Project (2022S190).

Funding

National Natural Science Foundation of China,42207367,Rui Tao,Natural Science Foundation of Zhejiang Province,LGN20C150003,Rui Tao,LGN22C150010,Maibo Jiang,Postdoctoral Research Foundation of China,2022M711655,Rui Tao

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Authors and Affiliations

Authors

Contributions

J Li, F Meng, and Mb Jiang contributed to the methodology. Mb Jiang and Nn Chen performed data curation. Data visualization was performed by R Tao. Funding acquisition was by R Tao and Mb Jiang. The first draft of the manuscript was written by J Li. Writing—review & editing were performed by R Tao and Gx Chu.

Corresponding author

Correspondence to Rui Tao.

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We declare that we have no conflict of interest.

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Li, J., Meng, F., Chen, N. et al. Loss in the rare bacterial diversity drives the monocropping obstacle of cut chrysanthemum. J Soil Sci Plant Nutr (2024). https://doi.org/10.1007/s42729-024-01701-4

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  • DOI: https://doi.org/10.1007/s42729-024-01701-4

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