Unveiling the molecular identity of plant autophagic compartments: A proteo-lipidomic study in Arabidopsis thaliana
Authors: Lupette, J., Chambaud, C., Buridan, M., Castets, J., Wattelet-Boyer, V., Toboso Moreno, I., Kosuth, T., Yatim, C., Dittrich-Domergue, F., Gros, V., Jouhet, J., Claverol, S., Herice, C., Melser, S., Genva, M., Fouillen, L., Bessoule, J.-J., Domergue, F., Bernard, A.
Category: Plant Biology
Model Organism: Arabidopsis thaliana
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The study introduces a native‑condition method combining cell fractionation and immuno‑isolation to purify autophagic compartments from Arabidopsis, followed by proteomic and lipidomic characterisation of the isolated phagophore membranes. Proteomic profiling identified candidate proteins linked to autophagy, membrane remodeling, vesicular trafficking and lipid metabolism, while lipidomics revealed a predominance of glycerophospholipids, especially phosphatidylcholine and phosphatidylglycerol, defining the unique composition of plant phagophores.