ArticleProceedings of the National Academy of Sciences of the United States of America2016
Influence of ammonia oxidation rate on thaumarchaeal lipid composition and the TEX86 temperature proxy.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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29 citing papers in PubMed.
- Machine learning-based paleobathymetric reconstructions using archaeal lipid biomarkers.Science advances · 2026Article
- Environmental Controls on Crenarchaeol Distributions in Hydrothermal Springs.Environmental microbiology · 2026Article
- Microbial and geochemical architecture of an active Scotian Slope cold seep.Frontiers in microbiology · 2026Article
- A comprehensive database for high-throughput identification of archaeal lipids using high-resolution mass spectrometry.Nature communications · 2025Article
- Article
- Lipid hydrogen isotope compositions primarily reflect growth water in the model archaeonApplied and environmental microbiology · 2025Article
- The proteome is a terminal electron acceptor.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Biofilm lifestyle across different lineages of ammonia-oxidizing archaea.The ISME journal · 2025Article
- Metabolic activities of marine ammonia-oxidizing archaea orchestrated by quorum sensing.mLife · 2024Article
- Identification of two archaeal GDGT lipid-modifying proteins reveals diverse microbes capable of GMGT biosynthesis and modification.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Tetraether archaeal lipids promote long-term survival in extreme conditions.Molecular microbiology · 2024Article
- Mode of carbon and energy metabolism shifts lipid composition in the thermoacidophileApplied and environmental microbiology · 2024Article
- Analysis of biomass productivity and physiology ofFrontiers in microbiology · 2023Article
- Membrane lipid and expression responses ofFrontiers in microbiology · 2023Article
- Lipid biomarkers: molecular tools for illuminating the history of microbial life.Nature reviews. Microbiology · 2022Review
- Evidence for Enzymatic Backbone Methylation of the Main Membrane Lipids in the Archaeon Methanomassiliicoccus luminyensis.Applied and environmental microbiology · 2022Article
- A Novel Approach to Characterize the Lipidome of Marine ArchaeonFrontiers in microbiology · 2021Article
- Planktonic Archaeal Ether Lipid Origins in Surface Waters of the North Pacific Subtropical Gyre.Frontiers in microbiology · 2021Article
- Alternative strategies of nutrient acquisition and energy conservation map to the biogeography of marine ammonia-oxidizing archaea.The ISME journal · 2020Article
- Marine Group II Euryarchaeota Contribute to the Archaeal Lipid Pool in Northwestern Pacific Ocean Surface Waters.Frontiers in microbiology · 2020Article
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9 authors.
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Abstract
Archaeal membrane lipids known as glycerol dibiphytanyl glycerol tetraethers (GDGTs) are the basis of the TEX86 paleotemperature proxy. Because GDGTs preserved in marine sediments are thought to originate mainly from planktonic, ammonia-oxidizing Thaumarchaeota, the basis of the correlation between TEX86 and sea surface temperature (SST) remains unresolved: How does TEX86 predict surface temperatures, when maximum thaumarchaeal activity occurs below the surface mixed layer and TEX86 does not covary with in situ growth temperatures? Here we used isothermal studies of the model thaumarchaeon Nitrosopumilus maritimus SCM1 to investigate how GDGT composition changes in response to ammonia oxidation rate. We used continuous culture methods to avoid potential confounding variables that can be associated with experiments in batch cultures. The results show that the ring index scales inversely (R(2) = 0.82) with ammonia oxidation rate (ϕ), indicating that GDGT cyclization depends on available reducing power. Correspondingly, the TEX86 ratio decreases by an equivalent of 5.4 °C of calculated temperature over a 5.5 fmol·cell(-1)·d(-1) increase in ϕ. This finding reconciles other recent experiments that have identified growth stage and oxygen availability as variables affecting TEX86 Depth profiles from the marine water column show minimum TEX86 values at the depth of maximum nitrification rates, consistent with our chemostat results. Our findings suggest that the TEX86 signal exported from the water column is influenced by the dynamics of ammonia oxidation. Thus, the global TEX86-SST calibration potentially represents a composite of regional correlations based on nutrient dynamics and global correlations based on archaeal community composition and temperature.
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