MassIVE MSV000088109

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Linking soil microbial community traits to the soil storage potential of dissolved organic carbon from surface plant litter

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Description

Using Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) on microcosm samples from early phase plant litter degradation, we found that proteins and condensed hydrocarbons are the compounds with the strongest correlation to dissolved organic carbon (DOC) concentration. Proteins correlated positively with DOC concentration, while tannins and condensed hydrocarbons correlated negatively with DOC. With nuclear magnetic resonance (NMR) spectroscopy, we identified 15 individual compounds associated with DOC concentration. Through random forest, neural network, and indicator species analyses, we identified bacterial and fungal taxa associated with DOC concentration and additionally identified connections between microorganisms and DOC chemical composition. [doi:10.25345/C5QR91] [dataset license: CC0 1.0 Universal (CC0 1.0)]

Keywords: soil microbial communities ; dissolved organic carbon ; metabolite cycling

Contact

Principal Investigators:
(in alphabetical order) 		John Dunbar, Los Alamos National Laboratory, USA
Submitting User: alchemistmatt

Publications

Campbell TP, Ulrich DEM, Toyoda J, Thompson J, Munsky B, Albright MBN, Bailey VL, Tfaily MM, Dunbar J.
Microbial Communities Influence Soil Dissolved Organic Carbon Concentration by Altering Metabolite Composition.
Front Microbiol. Epub 2022 Jan 20.

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