Targeted Metabolomics Using LC-MS in Neurospora crassa

Area of Science:

• Mycology
• Metabolomics
• Biochemistry

Background:

• Neurospora crassa is a model organism for gene-metabolism studies, historically significant for the one-gene-one-enzyme hypothesis.
• Previous metabolomic studies in fungi often prioritized secondary metabolites over primary ones.
• Advancements in analytical techniques are crucial for comprehensive fungal metabolic profiling.

Purpose of the Study:

• To establish a robust pipeline for targeted metabolomics of primary metabolites in Neurospora crassa.
• To enable systematic analysis and comparison of metabolite levels across different fungal strains.
• To provide a foundational protocol for researchers studying fungal metabolism.

Main Methods:

• A detailed protocol for sample preparation, including lyophilization and pulverization.
• Extraction of polar metabolites using a specialized solution.
• Separation and identification of metabolites via Liquid Chromatography-Mass Spectrometry (LC-MS).
• Downstream data analysis using Skyline software for comparative profiling.

Main Results:

• The developed pipeline allows for the targeted analysis of primary metabolites in Neurospora crassa.
• Hundreds of metabolites can be detected and their relative levels quantified.
• The method facilitates comparative metabolomics across various fungal strains.
• The protocol is optimized for liquid cultures grown in defined minimal media.

Conclusions:

• The described pipeline offers a reliable method for targeted primary metabolomics in Neurospora crassa.
• This approach enhances the systematic study of fungal metabolism and gene function.
• The protocol serves as a valuable tool for future research in fungal biology and biochemistry.