Lipid Biogeochemistry and Modern Lipidomic Techniques

Area of Science:

• Biogeochemistry
• Marine Science
• Geochemistry

Background:

• Lipids are diverse biomolecules with essential cellular functions.
• Lipids serve as biomarkers in modern oceans and paleoproxies for geological history.
• Understanding lipid roles is key to marine and Earth science research.

Purpose of the Study:

• To review lipid geochemistry, biosynthesis, and compartmentalization.
• To explore the diverse applications of lipids as biomarkers.
• To examine the evolution of analytical techniques for lipid characterization.

Main Methods:

• Review of lipid geochemistry and biosynthesis.
• Analysis of lipid applications as biomarkers and paleoproxies.
• Examination of advancements in high-resolution accurate-mass mass spectrometry.

Main Results:

• High-resolution mass spectrometry has revolutionized lipidomics and metabolomics.
• Lipidomics enables analysis of thousands of features and quantification of unknowns.
• Significant challenges exist in marine lipidome annotation due to database limitations.

Conclusions:

• Lipidomics offers an open analytical window into marine ecosystems.
• Gaps in marine lipid databases present opportunities for fundamental research.
• Further research can address molecular controls and global patterns in the lipidscape.