Empetrum labeling study - R script ...

• Main Authors: Hupperts, Stefan, Gundale, Michael, Sundqvist, Maja, Kardol, Paul, Islam, Kazi Samiul
• Format: Software
• Language: unknown
• Published: figshare 2023
• Subjects: Terrestrial ecology; Plant physiology; Mycology; Empetrum nigrum
• Online Access: https://dx.doi.org/10.6084/m9.figshare.24306355.v1; https://figshare.com/articles/software/Empetrum_labeling_study_-_R_script/24306355/1

· High latitude ecosystems are warming faster than other biomes and are often dominated by a ground layer of Ericaceous shrubs, which can respond positively to warming. The carbon-for-nitrogen (C-for-N) exchange between Ericaceous shrubs and root-associated fungi may underlie shrub responses to warming, but has been understudied.· In a greenhouse setting, we examined the effects of warming on the C-for-N exchange between the Ericaceous shrub Empetrum nigrum ssp. hermaphroditum and its root-associated fungi. We applied different 13 C and 15 N isotope labels, including a simple organic N form (glycine) and a complex organic N form (moss litter) and quantified their assimilation into soil, plant biomass, and root fungal biomass pools.· We found that warming lowered the amount of 13 C partitioned to root-associated fungi per unit of glycine 15 N assimilated by E. nigrum , but only in the short-term. In contrast, warming increased the amount of 13 C partitioned to root-associated fungi per unit of moss 15 N ...