Novel metabolic interactions and environmental conditions mediate the boreal peatmoss-cyanobacteria mutualism.

ABSTRACT: Interactions between Sphagnum (peat moss) and cyanobacteria play critical roles in terrestrial carbon and nitrogen cycling processes. Knowledge of the metabolites exchanged, the physiological processes involved, and the environmental conditions allowing the formation of symbiosis is important for a better understanding of the mechanisms underlying these interactions. In this study, we used a cross-feeding approach with spatially resolved metabolite profiling and metatranscriptomics to characterize the symbiosis between Sphagnum and Nostoc cyanobacteria. A pH gradient study revealed that the Sphagnum-Nostoc symbiosis was driven by pH, with mutualism occurring only at low pH. Metabolic cross-feeding studies along with spatially resolved matrix-assisted laser desorption/ionization mass spectr

SUBMITTER: Carrell AA 

PROVIDER: S-EPMC8941135 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature