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Intra- and inter-annual changes in root endospheric microbial communities of grapevine are mainly deterministic

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Abstract  

Background and aims

Considering the plant microbiota, temporal changes are expected depending on plant development stages and environmental pressures because of modifications in plant requirements and available soil microbial reservoir.

Methods

Herein, we analyzed the composition of root endosphere microbiota of grafted vine plants using two grapevine cultivars (Merlot and Cabernet-Sauvignon as scion grafted on rootstocks of different clones) as models both sampled in a single vineyard at three dates over a period of two growing years.

Results

Highly conserved temporal patterns were found in the two cultivars. Intra-annual changes in microbial community composition were recorded whereas convergent microbial communities were observed on the two September dates. In particular, the increase in Actinobacteria and decrease in Glomeromycota in September were interpreted as shifts in the microbiota community patterns related to plant physiological requirements (e.g. water supply). A high proportion of non-random assembly of the root endospheric bacterial community confirmed the deterministic influence of the plant or/and the environment in microbial recruitment over time. The modified normalized stochasticity ratio (MST) showed that deterministic processes of assembly (MST < 50%) were commonplace despite the changes in the root microbiota composition observed among sampling dates.

Conclusion

Our study suggests an intra-annual rhythm of microbiota shifts, marginally random, with a succession within the root-microbiota endosphere likely governed by active plant filtering. A better knowledge of microbial-recruitment at work, seems important for both fundamental and applied perspectives.

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Data availability

Data are available on Figshare https://figshare.com/s/6c6ca1fee254f88e0598.

Sequence data are available at European Nucleotide Archive (ENA) under accession number PRJEB47615.

References

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Acknowledgements

This work was supported by a grant from the CNRS-EC2CO program (HOLOBIONT project), CNRS-IRP program (M-AGRI project) and by the "Agence Nationale de la Recherche et de la Technologie” (ANRT) through an industrial CIFRE agreement between Château Palmer, Château Latour, Sovivins, Pépinière de Salettes and the University of Rennes 1 (Agreement N° 2017/1579). We are grateful to the GENTYANE and, within the ANAEE-France research infrastructure, to the EcogenO platforms for help with DNA extraction and amplicon sequencing, respectively. We are also grateful to the Genotoul platform Toulouse Midi-Pyrenees and GenOuest for access to their bioinformatics pipeline and storage facilities and the Ecolex platform for help during sampling. We deeply acknowledge all the trainees and people at Château Palmer for their help during the sampling campaigns, especially Sylvain Fries, Oriane Heulliet, Hélène Sarkis for their help performing this work. We are also very grateful to July Hémon (EcogenO, molecular analysis) and Achim Quaiser (sampling). We finally acknowledge Daphne Goodfellow for English editing.

Funding

This work was supported by a grant from the CNRS-EC2CO program (HOLOBIONT project), CNRS-IRP program (M-AGRI project) and by the "Agence Nationale de la Recherche et de la Technologie” (ANRT) through an industrial CIFRE agreement between Château Palmer, Château Latour, Sovivins, Pépinière de Salettes and the University of Rennes 1 (Agreement N° 2017/1579).

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Authors and Affiliations

Authors

Contributions

MB, CM, SP, VC and PV conceived the project. PV, CM and MB set up the methodology of the study. MB, CM, OJ, NL and PV conducted the sampling. MB conducted lab experiments with the help of AM. RCV and SMC performed the sequencing and MB and TW analyzed the sequence data. MB and TW performed the statistical analyses with advice from CM, MH and NL. MB wrote the first draft of the paper. All the authors gave their final approval for publication.

Corresponding author

Correspondence to Philippe Vandenkoornhuyse.

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Competing interests

The authors declared no conflicts of interest.

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Responsible Editor: Jeff R. Powell.

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Biget, M., Mony, C., Wang, T. et al. Intra- and inter-annual changes in root endospheric microbial communities of grapevine are mainly deterministic. Plant Soil 494, 217–233 (2024). https://doi.org/10.1007/s11104-023-06262-6

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  • DOI: https://doi.org/10.1007/s11104-023-06262-6

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