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. 2020 Nov 18;15(3):833–847. doi: 10.1038/s41396-020-00817-6

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — A Heatmap showing the relative abundance of four sub-OTUs of Psychromonas 16S rRNA OTU 4 in DNA-SIP gradients. Significant ¹³C-enrichment was determined by differential abundance analysis between high density (¹³C-enriched) and low density (¹²C-enriched) DNA-SIP fractions. Sub-OTU 4, which was identical to the 16S rRNA gene sequence of Psychromonas MAG GLG-1, is indicated in bold. B Phylogeny of Psychromonas sub-OTUs. The sequences were aligned with MAFFT [89] and the tree was calculated with FastTree [79]. C Changes in relative abundance of Psychromonas sub-OTUs in protein-amended, lipid-amended, and unamended sediment microcosms with or without the sulfate reduction inhibitor molybdate.