|
|
Compound
|
Relative intensity (%)
|
|
|---|---|---|---|
|
Sample
207-1257C-5R-2 |
Sample
207-1258B-39R-5 |
||
| Archaeal lipids: | GDGT-monoglycosyl | 2 | 5 |
|
|
DEG-diglycosyl | 11 | 3 |
|
|
"DEG+14-diglycosyl" | 2 |
|
|
|
GDGT-diglycosyl | 28 | 6 |
|
|
"GDGT+14-diglycosyl" | 11 |
|
|
|
GDGT-triglycosyl | Tr |
|
| Bacterial lipids: | DAG-PDME (C37:2) | 7 |
|
|
|
DAG-PDME (C36:2) | 4 |
|
|
|
DAG-PC (C38:2) | 9 | 3 |
|
|
DAG-PC (C37:2) | 15 | 8 |
|
|
DAG-PC (C36:2) | 10 |
|
|
|
DAG-PC (C35:1) | 1 |
|
|
|
DAG-PC (C34:1) | Tr |
|
|
|
Total: | 100 | 25 |
Notes: Data are semiquantitative and result from peak areas of individual compound per gram of sediment, where the sum of peak areas of all IPLs/g dry sediment in Sample 207-1257C-5R-2, 130–140 cm, is equivalent to 100%. Note that response factors of individual IPLs are not known; consequently the relative signal intensity is not necessarily equivalent to relative abundance. Tr = the ion and corresponding MS2 data was observed but the peak was not quantifiable. The carbon numbers refer to the total number of carbon atoms in the two fatty acids on the diacylglycero- (DAG) lipids. Diethylglycero- (DEG) lipids are all C40:0 and assumed to be archaeal. N.B. compounds written in quotation marks remain to be fully identified and are named for their characteristics.