Here we report a facile method based on in situ chemical derivatization followed by extraction for analysis of metabolites and other chemicals in hypersaline samples, enabling for the first time direct LC-MS-based exo-metabolomics analysis in sample matrices containing up to 2 molar total dissolved salts. The method, MetFish, is applicable to molecules containing amine, carboxylic acid, carbonyl, or hydroxyl functional groups, and can be integrated into either targeted or untargeted analysis pipelines. MetFish was successfully applied in targeted and untargeted exo-metabolomics analyses of microbial consortia, quantifying amino acid dynamics in the exo-metabolome during community succession; in situ in a native prairie soil, whose exo-metabolome was isolated using a hypersaline extraction; and in input and produced fluids from a hydraulically fractured well, identifying dramatic changes in the exo-metabolome over time in the well.
[doi:10.25345/C53Q93]
[dataset license: CC0 1.0 Universal (CC0 1.0)]
Keywords: metabolomics ; high-salt samples ; microbial communities
Principal Investigators: (in alphabetical order) |
Thomas Metz, Pacific Northwest National Laboratory, USA |
Submitting User: | alchemistmatt |
Xu C, Couvillion SP, Sontag RL, Isern NG, Maezato Y, Lindemann SR, Roy Chowdhury T, Zhao R, Morton BR, Chu RK, Moore RJ, Jansson JK, Bailey VL, Mouser PJ, Romine MF, Fredrickson JF, Metz TO.
MetFish: a Metabolomics Pipeline for Studying Microbial Communities in Chemically Extreme Environments.
mSystems. 2021 Jun 29;6(3):e0105820. Epub 2021 May 26.
Chengdong Xu, Sneha P. Couvillion, Ryan L. Sontag, Nancy G. Isern, Yukari Maezato, Stephen R. Lindemann, Taniya Roy Chowdhury, Rui Zhao, Beau R. Morton, Ronald J. Moore, Janet K. Jansson, Vanessa L. Bailey, Paula J. Mouser, Margaret F. Romine, James F. Fredrickson, Thomas O. Metz.
MetFish: A Metabolomics Platform for Studying Microbial Communities in Chemically Extreme Environments.
doi: https://doi.org/10.1101/518647.
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