Synthetic microbiota reveal priority effects and keystone strains in the Arabidopsis phyllosphere.
Journal
Nature ecology & evolution
ISSN: 2397-334X
Titre abrégé: Nat Ecol Evol
Pays: England
ID NLM: 101698577
Informations de publication
Date de publication:
10 2019
10 2019
Historique:
received:
03
04
2019
accepted:
21
08
2019
entrez:
28
9
2019
pubmed:
29
9
2019
medline:
18
12
2019
Statut:
ppublish
Résumé
Multicellular organisms, including plants, are colonized by microorganisms, some of which are beneficial to growth and health. The assembly rules for establishing plant microbiota are not well understood, and neither is the extent to which their members interact. We conducted drop-out and late introduction experiments by inoculating Arabidopsis thaliana with synthetic communities from a resource of 62 native bacterial strains to test how arrival order shapes community structure. As a read-out we tracked the relative abundance of all strains in the phyllosphere of individual plants. Our results showed that community assembly is historically contingent and subject to priority effects. Missing strains could, to various degrees, invade an already established microbiota, which was itself resistant and remained largely unaffected by latecomers. Additionally, our results indicate that individual strains of Proteobacteria (Sphingomonas, Rhizobium) and Actinobacteria (Microbacterium, Rhodococcus) have the greatest potential to affect community structure as keystone species.
Identifiants
pubmed: 31558832
doi: 10.1038/s41559-019-0994-z
pii: 10.1038/s41559-019-0994-z
pmc: PMC6774761
mid: EMS84180
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1445-1454Subventions
Organisme : European Research Council
ID : 668991
Pays : International
Commentaires et corrections
Type : CommentIn
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