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A consortium of ectomycorrhizal fungi and bacteria differentially regulates organic carbon and exometabolites production across Populus trichocarpa genotypes.

ABSTRACT: Poplar is a short-rotation woody crop routinely studied because of its importance as a sustainable bioenergy crop. The establishment of a successful poplar plantation partially depends on its rhizosphere, a dynamic zone governed by complex interactions between plant roots and a plethora of commensal, mutualistic, symbiotic, or pathogenic microbes that shape plant fitness. Here, we examined a consortium of ectomycorrhizal fungi and a beneficial Pseudomonas sp. strain GM41 for their effect on plant growth (height, stem girth, leaf, and root growth) and growth rate over time of four poplar genotypes of Populus trichocarpa. We also compare the total organic carbon and plant exometabolites profiles produced by these different poplar genotypes when colonized by the microbial consortium. We determined that when comparing the treatments to the control, plant growth parameters were not significantly different across the poplar genotypes eight weeks post-inoculation. However, total organic carbon and exometabolite profiles were significantly different between the genotypes and due to the treatments. These findings indicate that this microbial consortium can induce early and different signaling responses in poplar.

INSTRUMENT(S): Hydro reverse-phase (RP) high-performance liquid chromatography (HPLC) followed by ionization by electrospray in negative mode on an Orbitrap mass spectrometer

ORGANISM(S): Populus Trichocarpa (ncbitaxon:3694)

SUBMITTER: Tomas Allen Rush

PROVIDER: MSV000090574 | MassIVE | Mon Oct 24 08:16:00 BST 2022

SECONDARY ACCESSION(S): PXD037685

REPOSITORIES: MassIVE

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