Publicación: A SUB-ANTARCTIC PEAT MOSS METAGENOME INDICATES MICROBIOME RESILIENCE TO STRESS AND BIOGEOCHEMICAL FUNCTIONS OF EARLY PALEOZOIC TERRESTRIAL ECOSYSTEMS
Fecha
2017
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INTERNATIONAL JOURNAL OF PLANT SCIENCES
Resumen
PREMISE OF RESEARCH.?ABUNDANT PEAT MOSSES AND EPIBIOTIC MICROBIOTA, COMMON IN WIDESPREAD MODERN PEATLANDS, CONSTITUTE COMPLEX BIOTIC SYSTEMS RECOGNIZED TO PROVIDE GLOBALLY SIGNIFICANT ECOSYSTEM SERVICES: ORGANIC CARBON SEQUESTRATION, METHANE OXIDATION, AND NITROGEN FIXATION. BECAUSE RECENT FOSSIL AND MOLECULAR DIVERSIFICATION EVIDENCE INDICATES THAT PEAT MOSSES ARE >450 MYR OLD, THEY MAY BE AMONG EARTH?S EARLIEST LAND PLANTS. THE BIOGEOCHEMICAL EFFECTS OF EARLY VEGETATION, WHICH MAY HAVE OCCUPIED REMOTE ISLANDS AND EXPERIENCED NUTRITIONAL STRESS AND EPISODES OF HIGH UV RADIATION, ARE POORLY UNDERSTOOD. TO GAIN INSIGHT INTO TAXONOMIC COMPOSITION, BIOGEOCHEMICAL FUNCTION, AND RESILIENCE OF ARCHAIC PEAT MOSS MICROBIOMES, WE PERFORMED SHOTGUN METAGENOMIC SEQUENCING OF A SIMILARLY STRESSED MODERN PEAT MOSS.
