Articles | Volume 17, issue 23
Biogeosciences, 17, 6145–6162, 2020
https://doi.org/10.5194/bg-17-6145-2020
Biogeosciences, 17, 6145–6162, 2020
https://doi.org/10.5194/bg-17-6145-2020

Research article 08 Dec 2020

Research article | 08 Dec 2020

Uncovering chemical signatures of salinity gradients through compositional analysis of protein sequences

Jeffrey M. Dick et al.

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ED: Publish subject to minor revisions (review by editor) (15 Oct 2020) by Jack Middelburg
AR by Jeffrey Dick on behalf of the Authors (21 Oct 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (23 Oct 2020) by Jack Middelburg
AR by Jeffrey Dick on behalf of the Authors (26 Oct 2020)  Author's response    Manuscript
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Short summary
Many natural environments differ in their range of salt concentration (salinity). We developed a metric for the number of water molecules in formation reactions of different proteins and found that it decreases between freshwater and marine systems and also in laboratory experiments with increasing salinity. These results demonstrate a new type of link between geochemical conditions and the chemical composition of microbial communities that can be useful for models of microbial adaptation.
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