CAMBON, Marine; CARTRY, Dinïa; CHANCEREL, Emilie; ZIEGLER, Camille; LEVIONNOIS, Sebastien; COSTE, Sabrina; STAHL, Clément; DELZON, Sylvain; BUÉE, Marc; BURBAN, Benoit; CAZAL, Jocelyne; FORT, Tania; GORET, Jean-Yves; HEURET, Patrick; LÉGER, Patrick; LOUISANNA, Elianne; RITTER, Yves; BONAL, Damien; ROY, Mélanie; SCHIMANN, Heidy; VACHER, Corinne

doi:10.1094/PBIOMES-04-22-0023-R

Métadonnées

Licence d’utilisation du document

CAMBON, Marine
Diversité, Génomes & Interactions Microorganismes - Insectes [Montpellier] [DGIMI]
Biodiversité, Gènes & Communautés [BioGeCo]

CARTRY, Dinïa
Biodiversité, Gènes & Communautés [BioGeCo]

CHANCEREL, Emilie
Biodiversité, Gènes & Communautés [BioGeCo]

Langue

Article de revue

Ce document a été publié dans

Phytobiomes Journal. 2023-10-01, vol. 7, n° 2, p. 244-253

APS Publications

Résumé en anglais

Plant-associated microorganisms have shown to aid plants in coping with drought. However, the underlying mechanisms are poorly understood and there is uncertainty regarding which microbial taxa and functions are mostly involved. We explored these issues in Neotropical rainforests and identified foliar microorganisms that may play a role in drought tolerance of trees. Our objectives were to (1) test the relationship between drought tolerance traits in Neotropical trees and the diversity and composition of their foliar fungal and bacterial communities and (2) identify leaf microbial taxa positively or negatively associated with drought tolerance traits. Our results showed that the composition of leaf fungal communities, but not bacterial communities, was related to drought tolerance. We identified 27 fungal Amplicon Sequence Variants (ASVs) whose relative abundance co-varied with drought tolerance traits. Most variants were assigned to fungal clades often described as plant pathogens and increased in abundance with drought susceptibility. This greater relative abundance of leaf pathogens in the most drought-susceptible trees might increase their vulnerability to climate change. Moreover, we identified the Strelitziana and Ochroconis fungal genera as potential candidates for future culture-dependent studies aimed at understanding and improving drought tolerance in Neotropical forests.< Réduire

Mots clés en anglais

Microbiome

Plants

Drought tolerance

Phyllosphere microbiota

Metabarcoding

Microbial ecology

Endophyte fungi

Forest biodiversity research

DOI

http://dx.doi.org/10.1094/PBIOMES-04-22-0023-R

Project ANR

CEnter of the study of Biodiversity in Amazonia
Recherches Avancées sur l'Arbre et les Ecosytèmes Forestiers
COntinental To coastal Ecosystems: evolution, adaptability and governance

Origine

Importé de hal

Unités de recherche

BioGeCo (Biodiversité Gènes & Communautés) - UMR 1202