Root-associated microorganisms reprogram plant life history along the growth-stress resistance tradeoff.
Journal
The ISME journal
ISSN: 1751-7370
Titre abrégé: ISME J
Pays: England
ID NLM: 101301086
Informations de publication
Date de publication:
12 2019
12 2019
Historique:
received:
05
10
2018
accepted:
09
08
2019
revised:
30
06
2019
pubmed:
13
9
2019
medline:
31
3
2020
entrez:
13
9
2019
Statut:
ppublish
Résumé
Growth-defense tradeoffs are a major constraint on plant evolution. While the genetics of resource allocation is well established, the regulatory role of plant-associated microorganisms is still unclear. Here, we demonstrate that plant-associated microorganisms can reposition the plant phenotype along the same growth-defense tradeoff that determines phenotypic effects of plant mutations. We grew plants with microorganisms altering ethylene balance, a key hormone regulating plant investment into growth and stress tolerance. Microbial ethylene reduction had a similar effect to mutations disrupting ethylene signaling: both increased plant growth but at the cost of a strong stress hypersensitivity. We conclude that microbial impact on phenotype can offset the effects of mutations and that apparent plant growth promotion has strong pleiotropic effects. This study confirms that plant life history should be addressed as a joint product of plant genotype and its associated microbiota.
Identifiants
pubmed: 31511619
doi: 10.1038/s41396-019-0501-1
pii: 10.1038/s41396-019-0501-1
pmc: PMC6863829
doi:
Substances chimiques
Ethylenes
0
Plant Growth Regulators
0
ethylene
91GW059KN7
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
3093-3101Références
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