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

ABSTRACT: 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.

INSTRUMENT(S): solariX

ORGANISM(S): Environmental Samples <bacteria> (ncbitaxon:48479)

SUBMITTER: John Dunbar  

PROVIDER: MSV000088109 | MassIVE |

REPOSITORIES: MassIVE