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The rhizosphere microbiome of 51 potato cultivars with diverse plant growth characteristics.
- Source :
-
FEMS microbiology ecology [FEMS Microbiol Ecol] 2024 Jul 12; Vol. 100 (8). - Publication Year :
- 2024
-
Abstract
- Rhizosphere microbial communities play a substantial role in plant productivity. We studied the rhizosphere bacteria and fungi of 51 distinct potato cultivars grown under similar greenhouse conditions using a metabarcoding approach. As expected, individual cultivars were the most important determining factor of the rhizosphere microbial composition; however, differences were also obtained when grouping cultivars according to their growth characteristics. We showed that plant growth characteristics were related to deterministic and stochastic assembly processes of bacterial and fungal communities, respectively. The bacterial genera Arthrobacter and Massilia (known to produce indole acetic acid and siderophores) exhibited greater relative abundance in high- and medium-performing cultivars. Bacterial co-occurrence networks were larger in the rhizosphere of these cultivars and were characterized by a distinctive combination of plant beneficial Proteobacteria and Actinobacteria along with a module of diazotrophs namely Azospira, Azoarcus, and Azohydromonas. Conversely, the network within low-performing cultivars revealed the lowest nodes, hub taxa, edges density, robustness, and the highest average path length resulting in reduced microbial associations, which may potentially limit their effectiveness in promoting plant growth. Our findings established a clear pattern between plant productivity and the rhizosphere microbiome composition and structure for the investigated potato cultivars, offering insights for future management practices.<br /> (© The Author(s) 2024. Published by Oxford University Press on behalf of FEMS.)
- Subjects :
- Fungi growth & development
Fungi classification
Fungi genetics
Plant Roots microbiology
Plant Roots growth & development
Rhizosphere
Microbiota
Solanum tuberosum microbiology
Solanum tuberosum growth & development
Soil Microbiology
Bacteria classification
Bacteria growth & development
Bacteria genetics
Bacteria isolation & purification
Subjects
Details
- Language :
- English
- ISSN :
- 1574-6941
- Volume :
- 100
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- FEMS microbiology ecology
- Publication Type :
- Academic Journal
- Accession number :
- 38839598
- Full Text :
- https://doi.org/10.1093/femsec/fiae088