Table 2.
Abbreviations and source assignments of bacterial and archaeal intact polar lipids and apolar derivatives.
| Intact Polar Lipids (core structure) | Name | Source Assignment | References |
|---|---|---|---|
| GLYCOLIPIDS | |||
| 1G-, 2G, 2G-P-GDGT (0–4 cyclopentyl rings) | Monoglycosyl-, diglycosyl-, diglycosyl phosphatidyl- glycerol dialkyl glycerol tetraether | Thermophilic archaea | Schouten et al., 2007; Schubotz et al., 2013 |
| G-CER | Glycosyl ceramide | Unknown thermophilic bacteria | Schubotz et al., 2013 |
| 1G-DEG, AEG, DAG (C18–C20) | Monoglycosyl diether, ester/ether, diacylglycerol | Unknown thermophilic bacteria | Bradley et al., 2009; Schubotz et al., 2013 |
| 2G-DEG, AEG, DAG (C18–C20) | Diglycosyl diether, ester/ether, diacylglycerol | Unknown thermophilic bacteria | Bradley et al., 2009; Schubotz et al., 2013 |
| GA-AEG, DAG (C18–C20) | Glycoronic acid ester/ether, diacylglycerol | Unknown thermophilic bacteria | Bradley et al., 2009; Schubotz et al., 2013 |
| AMINOGLYCOLIPID | |||
| G-NG-DAG | Monoglycosyl(N)glycosaminyl diacylglycerol | Unknown thermophilic bacteria | This study |
| NAcG-2G-DEG | Diglycosyl(N-acetyl)glycosaminyl dietherglycerol | Thermus/Meiothermus | Ferreira et al., 1999 |
| AMINOPHOSPHOGLYCOLIPID | |||
| NAcG-P-DEG, DAG | Phospho(N-acetyl)glycosaminyl diether, diacylglycerol | Thermus/Meiothermus, Chtonomonadales | Yang et al., 2006; Lee et al., 2011 |
| AMINOPHOSPHOLIPID | |||
| APT-DEG, DAG (C18–C22) | Aminophosphopentanetetrol diether, diacylglycerol | Aquificae | Sturt et al., 2004 |
| PHOSPHOLIPIDS | |||
| PI-DEG, AEG, DAG (C18–C22) | Phosphatidyl inositol diether, ester/ether, diacylglycerol | Aquificae | Sturt et al., 2004 |
| PE-DAG (C15–C18) | Phosphatidyl ethanolamine diether, ester/ether, diacylglycerol | Unspecific bacteria | Kates, 1964 |
| PC-DAG C15–C18) | Phosphatidyl choline diether, ester/ether, diacylglycerol | Unspecific bacteria | Kates, 1964 |
| AMINOLIPIDS | |||
| OL, OH-OL (C15–C18) | Ornithine lipids, hydroxylated ornithine lipids | Unspecific bacteria | Vences-Guzmán et al., 2014 |
| FATTY ACIDS | |||
| i-, ai-C15–C19 | Firmicutes, thermophilic bacteria, Deltaproteobacteria | Kaneda, 1991; van de Vossenberg et al., 1999 | |
| C20:1, cy-C21:0, C20:0, C21:0, C22:0 | Aquificae | Jahnke et al., 2001 | |