BERGER, Antoine; PÉREZ-VALERA, Eduardo; BLOUIN, Manuel; BREUIL, Marie-Christine; BUTTERBACH-BAHL, Klaus; DANNENMANN, Michael; BESSON-BARD, Angélique; JEANDROZ, Sylvain; VALLS, Josep; SPOR, Aymé; SUBRAMANIAM, Logapragasan; PÉTRIACQ, Pierre; WENDEHENNE, David; PHILIPPOT, Laurent

doi:10.1111/nph.20159

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BERGER, Antoine
Agroécologie [Dijon]

PÉREZ-VALERA, Eduardo
Agroécologie [Dijon]

BLOUIN, Manuel
Agroécologie [Dijon]

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Article de revue

Ce document a été publié dans

New Phytologist. 2024-12, vol. 244, n° 5, p. 2008-2023

Wiley

Résumé en anglais

Interactions between plants and microorganisms are pivotal for plant growth and productivity. Several plant molecular mechanisms that shape these microbial communities have been identified. However, the importance of nitric oxide (NO) produced by plants for the associated microbiota remains elusive. Using Arabidopsis thaliana isogenic mutants overproducing NO ( nox1 , NO overexpression) or down‐producing NO (i.e. nia1nia2 impaired in the expression of both nitrate reductases NR1/NIA1 and NR2/NIA2 ; the 35s::GSNOR1 line overexpressing nitrosoglutathione reductase (GSNOR) and 35s::AHB1 line overexpressing haemoglobin 1 (AHB1)), we investigated how altered NO homeostasis affects microbial communities in the rhizosphere and in the roots, soil microbial activity and soil metabolites. We show that the rhizosphere microbiome was affected by the mutant genotypes, with the nox1 and nia1nia2 mutants causing opposite shifts in bacterial and fungal communities compared with the wild‐type (WT) Col‐0 in the rhizosphere and roots, respectively. These mutants also exhibited distinctive soil metabolite profiles than those from the other genotypes while soil microbial activity did not differ between the mutants and the WT Col‐0. Our findings support our hypothesis that changes in NO production by plants can influence the plant microbiome composition with differential effects between fungal and bacterial communities.< Réduire

Mots clés en anglais

microbiome

mutants

nitric oxide

rhizosphere

soil

Arabidopsis thaliana

endosphere

URI

https://oskar-bordeaux.fr/handle/20.500.12278/204108

DOI

http://dx.doi.org/10.1111/nph.20159

Project ANR

Centre français de phénomique végétale
Développement d'une infrastructure française distribuée pour la métabolomique dédiée à l'innovation
Quel est le rôle du NO exogène pour les plantes, les microorganismes et leurs interactions dans le sol ? - ANR-20-CE92-0004

Origine

Importé de hal

Unités de recherche

Biologie du Fruit & Pathologie (BFP) - UMR 1332