Chapter title |
Improvements to Define Mitochondrial Metabolomics Using Nonaqueous Fractionation.
|
---|---|
Chapter number | 14 |
Book title |
Plant Mitochondria
|
Published in |
Methods in molecular biology, January 2015
|
DOI | 10.1007/978-1-4939-2639-8_14 |
Pubmed ID | |
Book ISBNs |
978-1-4939-2638-1, 978-1-4939-2639-8
|
Authors |
Fly, Richard, Lloyd, James, Krueger, Stephan, Fernie, Alisdair, van der Merwe, Margaretha J, Richard Fly, James Lloyd, Stephan Krueger, Alisdair Fernie, Margaretha J. van der Merwe |
Editors |
James Whelan, Monika W. Murcha |
Abstract |
Defining metabolite abundance and resulting fractional isotope enrichments, within and between cellular compartments, still remain a major challenge in modern plant biochemistry. Optimized protocols for rapid isolation of mitochondria (e.g., silicone oil centrifugation or membrane filters) or visualization of metabolites/metabolic states (e.g., fluorescence resonance energy transfer (FRET) or redox-sensitive fluorescent markers (roGFP)) have significantly improved and expanded our knowledge regarding mitochondrial metabolism. However, the application of nonaqueous fractionation (NAQF) to separate and quantify metabolites across subcellular compartments remains popular as a nontargeted, validated approach towards studying metabolism, and provides a top-down overview of metabolite distribution across the majority of the subcellular compartments in a single preparation. Unfortunately, of all the organelles resolved using this method, the mitochondrion still remains the most poorly defined. Here, the development and suggested improvements to resolve the mitochondrial metabolome are described. |
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