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Plant Compartments and Developmental Stages Modulate the Balance between Niche-Based and Neutral Processes in Soybean Microbiome

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Moroenyane, Itumeleng; Mendes, Lucas; Tremblay, Julien; Tripathi, Binu et Yergeau, Étienne ORCID logoORCID: https://orcid.org/0000-0002-7112-3425 (2021). Plant Compartments and Developmental Stages Modulate the Balance between Niche-Based and Neutral Processes in Soybean Microbiome Microbial Ecology , vol. 82 , nº 2. pp. 416-428. DOI: 10.1007/s00248-021-01688-w.

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Résumé

Understanding the dynamics of plant-associated microbial communities within agriculture is well documented. However, the ecological processes that assemble the plant microbiome are not well understood. This study elucidates the relative dominance of assembly processes across plant compartments (root, stem, and leaves) and developmental stages (emergence, growth, flowering, and maturation). Bacterial community composition and assembly processes were assessed using 16S rRNA gene amplicon sequencing. Null models that couple phylogenetic community composition and species distribution models were used to evaluate ecological assembly processes of bacterial communities. All models highlighted that the balance between the assembly process was modulated by compartments and developmental stages. Dispersal limitation dominated amongst the epiphytic communities and at the maturation stage. Homogeneous selection dominated assembly across plant compartments and development stages. Overall, both sets of models were mostly in agreement in predicting the prevailing assembly processes. Our results show, for the first time, that even though niche-based processes dominate in the plant environment, the relative influence of dispersal limitation in community assembly is important.

Type de document: Article
Mots-clés libres: Community Assembly; Niche-Based Assembly; Phylogenetic Community Structure; Soybean Microbiome
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 30 juin 2022 13:59
Dernière modification: 01 mai 2023 22:00
URI: https://espace.inrs.ca/id/eprint/12398

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