Table 1 Correlation of rpS3 gene abundances from metagenomic read mapping with relative abundance of IPL signatures across samples. Primary lipids are direct correlations, secondary lipids are those that correlated with primary lipids.

Ca. Huberarchaeum crystalense

2G-1uns-ext-AR

1G-1pentose-AR, 2G-ext-AR, C30:0-PG

Ca. Forterrea multitransposorum

C36:4-PC, C44:12-DGCC

Bacteria

C44:12-DGTA

C32:2-DGTA, C30:1-DGTA, C32:3-DGCC, C32:3-DGTA, C32:4-DGTA, C34:4-DGCC, C34:5-DGTA, C34:6-DGTA, C36:5-DGCC, C36:6-DGCC, C36:6-DGTA, C36:7-DGTA, C36:8-DGTA, C37:2-DGTA, C38:7-DGCC, C40:10-DGTA, C42:11-DGTA, C42:11-PC, C36:7-DGCC

Bacteria

C63:3-DPG

Bacteria

lyso_C18:2-DGTA

Bacteroidetes

C36:3-PE, C36:4-PE

C30:1-PE, C34:3-PE, C34:4-PE, C30:2-PE, C32:4-PE, C32:5-PE

Citromicrobium

C32:1-2Gly-DAG, C32:2-2Gly-DAG, C34:4-2Gly-DAG, C34:5-2Gly-DAG, C34:6-2Gly-DAG, C36:6-2Gly-DAG, C36:7-2Gly-DAG, lyso_C20:4-DGCC

C38:7-2Gly-DAG, C42:11-DGCC, C30:1-2Gly-DAG, C30:2-2Gly-DAG, C32:3-2Gly-DAG, C38:9-DGCC, C61:0-DPG, C38:8-2Gly-DAG

Flavobacteriaceae

C63:4-DPG

C29:0-PE

Flavobacteriaceae

C65:4-DPG

Gallionellaceae

C25:0-OL, C26:0-OL, C26:1-OL, C27:0-OL, C27:1-OL, C29:1-OL, C30:0-OL

C30:1-OL, C32:2-OL, C28:1-OL, C28:0-OL, C34:2-OL, C29:0-OL, C28:1-PE, C30:2-OL, C33:2-PE

Gallionellaceae

C38:6-PC

C34:1-DGCC, C34:2-PC, AEG_C36:2-2G

Gallionellaceae

C62:3-DPG, C64:3-DPG, C66:4-DPG

C33:3-DGTS, C68:4-DPG

Hydrogenophilceae

C60:3-DPG, C64:4-DPG

Proteobacteria

C58:1-DPG, C62:4-DPG

Proteobacteria

lyso_C21:4-DGTS

C30:2-DGTS

Proteobacteria

lyso_C22:6-DGTS

lyso_C21:5-DGTS, lyso_C16:2-DGTS

Falkowbacteria (OD1)

lyso_C16:0-DGTS

Kaiserbacteria (OD1)

lyso_C16:0-DGTA

lyso_C16:0-DGCC

Kaiserbacteria (OD1)

lyso_C20:4-DGTS

lyso_C16:1-DGTS, lyso_C18:3-DGTS

Parcubacteria

C30:0-DGCC

lyso_C16:3-DGTS

Parcubacteria

C47:15-DGTA

C36:5-PG, C36:4-PG

Parcubacteria

lyso_C16:2-DGCC, lyso_C18:3-DGCC, lyso_C18:4-DGCC, lyso_C20:5-DGCC

lyso_C20:5-DGTA, lyso_C16:1-DGTA, lyso_C16:1-DGCC