OGC lecture 4b: biomarkers
🇬🇧
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OGC lecture 4b: biomarkers - Leaderboard
OGC lecture 4b: biomarkers - Details
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15 questions
| 🇬🇧 | 🇬🇧 |
| Biomarkers for archaea | Isoprenoid ether lipids - Diether lipids (Archaeol) - Tetraether lipids (GDGTs) |
| Biomarker for ammonium oxidizing Thaumarchaeota | Crenarchaeol (GDGT) |
| Biomarker for methanotrophic Archaea | Isoprenoid lipids with low 13C content |
| Biomarker for halophilic archaea | Dietherlipid with C25 isoprenoid chain |
| Biomarker of Crenarchaeota | Don't have specific biomarkers and don't produce Crenarchaeol , but produce other DGDTs |
| What do Thaumarchaeota do? | Oxdize ammonia to nitrate (nitrification) |
| Thaumarchaeota don't need...? | Light. But phytoplankton does. Both need Ammonium |
| ANME 1: | GDGTs |
| ANME 2: | Hydroxy diether lipids |
| What do ANME do? | They are anaerobic methanotrophs and oxidize methane |
| What can Thaumarchaeota produce themselves? | Oxygen. This is why they can live in the deep |