Table 2.
The distribution of ether lipids released by acid hydrolysis (presented as % of total) across the 13 strains of haloarchaea with three different types of physiology.
| Core lipid | Methanogens | Anaerobic sulfur reducers | Polysaccharide utilizers | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cellulolytics | Chitinolytics | |||||||||||||
| AMET1T | HMET1 | AME2T | AMF2T | HSR2T | HSR6T | AArc-Mg | AArc-SlT | HArcel1T | AArcel5T | AArcel7 | AArcht4T | AArcht-SlT | ||
| Phytanyl glycerol monoethersa | sn-2-C20 | 1 | 4 | 2 | 0.2 | 4 | 3 | 0.4 | 0.2 | 0.5 | ||||
| sn-3-C20 | 1 | 12 | 10 | 0.5 | 0.4 | 0.3 | 0.5 | 0.6 | 0.4 | |||||
| Extended (sesterterpenyl) glycerol monoethersa | sn-2-C25 | 0.5 | 0.8 | 2 | 0.6 | |||||||||
| sn-3-C25 | 2 | 49 | ||||||||||||
| Archaeolb | C20−20 | 32 | 20 | 45 | 73 | 47 | 40 | 44 | 88 | 81 | 58 | 12 | 56 | 51 |
| Extended archaeolsa | sn-2-C25 | 1 | 53 | 59 | 56 | 40 | 85 | 43 | ||||||
| sn-3-C25 | 7 | 13 | ||||||||||||
| Macrocyclic archaeol a | 6 | |||||||||||||
| OH-Archaeola | 15 | |||||||||||||
| GDGT-0b | 59 | 79 | 17 | 15 | ||||||||||
| GDGT-1b | 7 | 1 | 0.1 | |||||||||||
Full strain names given in Table 1. GDGT, glycerol dialkyl glycerol tetraether (where n is the number of cyclopentane moieties), OH, hydroxy. This distribution is produced by combining two separate data sets (aGC derived and bHPLC-MS derived), both normalized to archaeol. Note that, due to assumptions made when combining the two data sets (see Section GC-MS analysis of mono and diethers) this should be treated as an estimation of the total ether lipid distribution. sn-n-CXX, n denotes the sn position of the alkyl chain and xx refers to the number of isoprenoidal carbons. For sn-n-C25 of the two extended archaeols, n denotes the sn position of the extended alkyl chain (sesterterpenyl).