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Biosynthesis of Lipids

Biosynthesis of Lipids

Microbial membranes exhibit remarkable diversity in lipid composition, reflecting evolutionary adaptations to various environmental conditions. The three domains of life—Bacteria, Archaea, and Eukarya—synthesize membrane lipids through distinct biosynthetic pathways, leading to fundamental structural differences that impact membrane stability, function, and adaptability.Fatty Acid-Based Lipids in Bacteria and EukaryaBacteria and eukaryotes share a common fatty acid biosynthesis...

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Updated: Mar 28, 2026

Lipid Supplementation for Longevity and Gene Transcriptional Analysis in Caenorhabditis elegans

Lipid Supplementation for Longevity and Gene Transcriptional Analysis in Caenorhabditis elegans

Published on: December 9, 2022

A Caenorhabditis elegans model for ether lipid biosynthesis and function.

Xun Shi¹, Pablo Tarazona², Trisha J Brock³

¹School of Molecular Biosciences Washington State University, Pullman, WA.

Journal of Lipid Research

|December 20, 2015

Summary

This summary is machine-generated.

Ether lipids are crucial for Caenorhabditis elegans membranes. Mutants lacking ether lipids alter their lipid synthesis and show impaired fertility, lifespan, and stress resistance.

Keywords:

C. elegans fatty acid/desaturases lipidomics peroxisomes phospholipids/phosphatidylethanolamine plasmalogens

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Area of Science:

Biochemistry
Molecular Biology
Genetics

Background:

Ether lipids are essential membrane components found widely in nature.
Caenorhabditis elegans synthesizes various alkyl and alkenyl ether lipid species.

Purpose of the Study:

To investigate the function of ether lipids in C. elegans.
To identify the genes involved in ether lipid biosynthesis and their roles.

Main Methods:

Isolation of C. elegans strains with loss-of-function mutations in FARD-1/FAR1, ACL-7/GNPAT, and ADS-1/AGPS.
Analysis of lipid composition in mutant strains.
Phenotypic analysis of mutant strains.

Main Results:

Mutant strains lacking ether lipids exhibited altered lipid composition, including increased de novo fatty acid synthesis and reduced desaturase activity.
Ether lipid deficiency significantly impacted fertility, lifespan, cold survival, and oxidative stress resistance.
These alterations in lipid metabolism were, at least partially, transcriptionally regulated.

Conclusions:

Ether lipids are vital for C. elegans' optimal physiological functions.
C. elegans can compensate for ether lipid deficiency by modifying its lipid synthesis pathways.
Understanding ether lipid biosynthesis and function provides insights into membrane biology and organismal health.