PR002833 (Project)

Dcc Asset:

MW submission packet 20260310.zip

Processed File (Entity type)

Dcc:

Metabolomics

DCC (Entity type)

Child Project:

PPR00001

Project (Entity type)

Persistent Id:http://dx.doi.org/10.21228/M8G85W

Description:Northern peatlands store nearly one-third of global soil carbon. In these cold, anoxic environments, decomposition is regulated by microbial networks adapted to oxygen limitation, allowing carbon, including recalcitrant phenolic compounds, to accumulate. Climate warming and drought increase oxygen availability, altering microbial carbon access. We leverage the SPRUCE whole-ecosystem warming experiment and an extreme drought that lowered water tables by 30 cm to determine how these perturbations influence microbial carbon cycling. Warming stimulated aerobic bacteria that correlated with porewater CO2 and metabolized phenolic compounds. Drought amplified warming effects by deepening water tables, stimulating aerobic respiration while suppressing fermentation and methanogenesis. Methanogen activity increased with warming under anoxic conditions but declined with drought. Metabolite-informed network analysis revealed covariance between fatty acids, amino acids, methanogens, and warming-responsive facultatively anaerobic heterotrophs, suggesting that organic acid exchange links temperature-sensitive heterotrophic and methanogenic processes.

Results found

Linked to

	Label	Description
	ST004499 AN007545 Results.txt File (Entity type)	A 1.82 MB file from Metabolomics produced from OBI:0003097 as part of the PR002833 project
	SA534466 Biosample (Entity type)	A biosample from Metabolomics produced as part of the PR002833 project
	SA534488 Biosample (Entity type)	A biosample from Metabolomics produced as part of the PR002833 project
	SA534470 Biosample (Entity type)	A biosample from Metabolomics produced as part of the PR002833 project
	SA534485 Biosample (Entity type)	A biosample from Metabolomics produced as part of the PR002833 project
	SA534463 Biosample (Entity type)	A biosample from Metabolomics produced as part of the PR002833 project
	ST004499 RP mzml.zip File (Entity type)	A 1.41 GB file from Metabolomics produced from OBI:0003097 as part of the PR002833 project
	SA534468 Biosample (Entity type)	A biosample from Metabolomics produced as part of the PR002833 project
	SA534462 Biosample (Entity type)	A biosample from Metabolomics produced as part of the PR002833 project
	SA534484 Biosample (Entity type)	A biosample from Metabolomics produced as part of the PR002833 project