Air pressure as a driver of plant-specific microbial responses in the rhizosphere.

ABSTRACT: In response to climate change, plants in mountain regions are shifting their distribution ranges upward, exposing them to novel abiotic conditions such as reduced atmospheric pressure. While these changes are likely to affect plant physiology, their impact on plant-associated microorganisms in the rhizosphere has not yet been investigated. In this study, we used the terraXcube Ecotron facility to experimentally discriminate air pressure from other elevation-related factors like humidity and temperature, and to assess its influence on the rhizosphere microbiota of three plant species: a grass (Brachipodium rupestre), a forb (Hieracium pilosella), and a legume (Trifolium pratense). Plants were grown under controlled environmental conditions at four simulated elevations (260, 1500, 2500, and

SUBMITTER: Rzehak T 

PROVIDER: S-EPMC12625054 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature