Interplay between host and environmental filters drives plant-associated microbiomes in the remote sub-Antarctic Kerguelen Islands.

ABSTRACT:

Background

Plants evolve as holobionts, ecological and evolutionary units made up of the host plant and its associated microbiota, which shape plant fitness and adaptive capacity. Isolated ecosystems with low biodiversity and plant cover, such as the fellfields of the remote sub-Antarctic Kerguelen Islands, represent ideal open-air laboratories to disentangle the drivers affecting plant-microbiome interactions. In such pristine environments, endemic plant species and their microbiota have coevolved in isolation possibly since the last ice age. In this study, we investigated the bacterial and fungal communities associated with different soil-plant compartments of two phylogenetically distant endemic plants, the Poaceae Poa kerguelensis and the Brassicaceae Pringlea antiscorbutica, i

SUBMITTER: Bertrand C 

PROVIDER: S-EPMC12723888 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature