Plant effects on microbiome composition are constrained by environmental conditions in a successional grassland.
Journal
Environmental microbiome
ISSN: 2524-6372
Titre abrégé: Environ Microbiome
Pays: England
ID NLM: 101768168
Informations de publication
Date de publication:
24 Jan 2024
24 Jan 2024
Historique:
received:
05
08
2023
accepted:
12
01
2024
medline:
25
1
2024
pubmed:
25
1
2024
entrez:
24
1
2024
Statut:
epublish
Résumé
Below-ground microbes mediate key ecosystem processes and play a vital role in plant nutrition and health. Understanding the composition of the belowground microbiome is therefore important for maintaining ecosystem stability. The structure of the belowground microbiome is largely determined by individual plants, but it is not clear how far their influence extends and, conversely, what the influence of other plants growing nearby is. To determine the extent to which a focal host plant influences its soil and root microbiome when growing in a diverse community, we sampled the belowground bacterial and fungal communities of three plant species across a primary successional grassland sequence. The magnitude of the host effect on its belowground microbiome varied among microbial groups, soil and root habitats, and successional stages characterized by different levels of diversity of plant neighbours. Soil microbial communities were most strongly structured by sampling site and showed significant spatial patterns that were partially driven by soil chemistry. The influence of focal plant on soil microbiome was low but tended to increase with succession and increasing plant diversity. In contrast, root communities, particularly bacterial, were strongly structured by the focal plant species. Importantly, we also detected a significant effect of neighbouring plant community composition on bacteria and fungi associating with roots of the focal plants. The host influence on root microbiome varied across the successional grassland sequence and was highest in the most diverse site. Our results show that in a species rich natural grassland, focal plant influence on the belowground microbiome depends on environmental context and is modulated by surrounding plant community. The influence of plant neighbours is particularly pronounced in root communities which may have multiple consequences for plant community productivity and stability, stressing the importance of plant diversity for ecosystem functioning.
Sections du résumé
BACKGROUND
BACKGROUND
Below-ground microbes mediate key ecosystem processes and play a vital role in plant nutrition and health. Understanding the composition of the belowground microbiome is therefore important for maintaining ecosystem stability. The structure of the belowground microbiome is largely determined by individual plants, but it is not clear how far their influence extends and, conversely, what the influence of other plants growing nearby is.
RESULTS
RESULTS
To determine the extent to which a focal host plant influences its soil and root microbiome when growing in a diverse community, we sampled the belowground bacterial and fungal communities of three plant species across a primary successional grassland sequence. The magnitude of the host effect on its belowground microbiome varied among microbial groups, soil and root habitats, and successional stages characterized by different levels of diversity of plant neighbours. Soil microbial communities were most strongly structured by sampling site and showed significant spatial patterns that were partially driven by soil chemistry. The influence of focal plant on soil microbiome was low but tended to increase with succession and increasing plant diversity. In contrast, root communities, particularly bacterial, were strongly structured by the focal plant species. Importantly, we also detected a significant effect of neighbouring plant community composition on bacteria and fungi associating with roots of the focal plants. The host influence on root microbiome varied across the successional grassland sequence and was highest in the most diverse site.
CONCLUSIONS
CONCLUSIONS
Our results show that in a species rich natural grassland, focal plant influence on the belowground microbiome depends on environmental context and is modulated by surrounding plant community. The influence of plant neighbours is particularly pronounced in root communities which may have multiple consequences for plant community productivity and stability, stressing the importance of plant diversity for ecosystem functioning.
Identifiants
pubmed: 38268048
doi: 10.1186/s40793-024-00550-z
pii: 10.1186/s40793-024-00550-z
doi:
Types de publication
Journal Article
Langues
eng
Pagination
8Subventions
Organisme : Grantová Agentura České Republiky
ID : 15-11635S
Organisme : Grantová Agentura České Republiky
ID : 15-11635S
Organisme : Grantová Agentura České Republiky
ID : 15-11635S
Organisme : Grantová Agentura České Republiky
ID : 15-11635S
Organisme : Ministerstvo Školství, Mládeže a Tělovýchovy
ID : LTT20073
Organisme : Ministerstvo Školství, Mládeže a Tělovýchovy
ID : LTT20073
Organisme : Ministerstvo Školství, Mládeže a Tělovýchovy
ID : LTT20073
Organisme : Ministerstvo Školství, Mládeže a Tělovýchovy
ID : LTT20073
Informations de copyright
© 2024. The Author(s).
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