Table 3.
Crenarcheaol regioisomer fractional abundance in pure and enrichment cultures of thaamarchaeota and environmental samples
| Culture or sample type | Crenarchaeol regioisomer fractional abundancea | Reference |
|---|---|---|
| Thaumarchaeotal cultures | ||
| Nitrosopumilus maritimus | 0.001 | 35 |
| “Ca. Nitrosoarchaeum limnia” | 0.01 | 29 |
| Enrichment SJ′ | 0.05 | 29 |
| Enrichment AR′ | 0.02 | 29 |
| “Ca. Nitrosoarchaeum koreensis” MY1 | 0.03 | This study |
| Nitrososphaera viennensis EN76 | 0.42 | This study |
| “Ca. Nitrososphaera” strain JG1 | 0.47 | This study |
| “Ca. Nitrososphaera gargensis” (n = 4) | 0.24 ± 0.01 | 30 |
| Environmental samples | ||
| Soils (n = 118) | 0.09 ± 0.05 | 47 |
| Kilimanjaro soils (n = 16) | 0.15 ± 0.07 | 40 |
| Marine sediments (n = 426) | 0.04 ± 0.04 | 14 |
| Lake sediments (n = 28) | 0.01 ± 0.01 | 3 |
a
Calculated as [crenarchaeol regioisomer]/([crenarchaeol regioisomer] + [crenarchaeol]). Values with “±” are averages based on the number of samples (n) specified ± the standard deviation of the average.