Article (Scientific journals)
A global LC-MS2 -based methodology to identify and quantify anionic phospholipids in plant samples
Genva, Manon; Fougère, Louise; Bahammou, Delphine et al.
2023In Plant Journal
Peer reviewed
 

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Keywords :
anionic phospholipids; plant lipids; tandem mass spectrometry; methylation; phosphoinositides; technical advance
Abstract :
[en] Anionic phospholipids (PS, PA, PI, PIPs) are low-abundant phospholipids with impactful functions in cell signaling, membrane trafficking and cell differentiation processes. They can be quickly metabolized and can transiently accumulate at defined spots within the cell or an organ to respond to physiological or environmental stimuli. As even a small change in their composition profile will produce a significant effect on biological processes, it is crucial to develop a sensitive and optimized analytical method to accurately detect and quantify them. While thin-layer chromatography (TLC) separation coupled with gas chromatography (GC) detection methods already exist, they do not allow for precise, sensitive, and accurate quantification of all anionic phospholipid species. Here we developed a method based on high-performance liquid chromatography (HPLC) combined with two-dimensional mass spectrometry (MS 2) by MRM mode to detect and quantify all molecular species and classes of anionic phospholipids in one shot. This method is based on a derivatization step by methylation that greatly enhances the ionization, the separation of each peak, the peak resolution as well as the limit of detection and quantification for each individual molecular species, and more particularly for PA and PS. Our method universally works in various plant samples. Remarkably, we identified that PS is enriched with very long chain fatty acids in the roots but not in aerial organs of Arabidopsis thaliana. Our work thus paves the way for new studies on how the composition of anionic lipids is finely tuned during plant development and environmental responses.
Disciplines :
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Genva, Manon  ;  Université de Liège - ULiège > Département GxABT > Chemistry for Sustainable Food and Environmental Systems (CSFES) ; Laboratoire de Biogen ese Membranaire (LBM), UMR 5200, University of Bordeaux, CNRS, Villenave d'Ornon, France
Fougère, Louise;  Laboratoire de Biogen ese Membranaire (LBM), UMR 5200, University of Bordeaux, CNRS, Villenave d'Ornon, France
Bahammou, Delphine;  Laboratoire de Biogen ese Membranaire (LBM), UMR 5200, University of Bordeaux, CNRS, Villenave d'Ornon, France
Mongrand, Sébastien;  Laboratoire de Biogen ese Membranaire (LBM), UMR 5200, University of Bordeaux, CNRS, Villenave d'Ornon, France
Boutté, Yohann;  Laboratoire de Biogen ese Membranaire (LBM), UMR 5200, University of Bordeaux, CNRS, Villenave d'Ornon, France
Fouillen, Laetitia;  Laboratoire de Biogen ese Membranaire (LBM), UMR 5200, University of Bordeaux, CNRS, Villenave d'Ornon, France
Language :
English
Title :
A global LC-MS2 -based methodology to identify and quantify anionic phospholipids in plant samples
Publication date :
2023
Journal title :
Plant Journal
ISSN :
0960-7412
Publisher :
Wiley-Blackwell
Peer reviewed :
Peer reviewed
Available on ORBi :
since 08 November 2023

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