Lipid Readjustment in Yarrowia lipolytica Odd-Chain Fatty Acids Producing Strains - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Biomolecules Année : 2022

Lipid Readjustment in Yarrowia lipolytica Odd-Chain Fatty Acids Producing Strains

Résumé

Yarrowia lipolytica is a promising oleaginous yeast for producing unusual lipids, such as odd-chain fatty acids (OCFA). Their diverse applications and low natural production make OCFA particularly interesting. In recent studies, inhibiting the catabolic pathway of precursor, boosting precursor pools, and optimizing substrate combination greatly improved the production of OCFA in Y. lipolytica. We explored the lipid readjustment of OCFA in engineered Y. lipolytica strains. NPLC-Corona-CAD® evidenced a time-dependent overproduction of free fatty acids, diglycerides, and phosphatidylcholine (PC) in obese LP compared to obese L. Phosphatidylethanolamine (PE) and phosphatidylinositol, largely overproduced in obese LP at 72 h compared to obese L, vanished at 216 h. The fatty acyls (FAs) composition of glycero- and glycerophospholipids was determined by NPLC-APPI+-HRMS from in-source generated monoacylglycerol-like fragment ions. C18:1 and C17:1 were predominant acylglycerols in obese L and obese LP, respectively. Phosphatidic acid, PE, and PC exhibited similar FAs composition but differed in their molecular species distributions. Cardiolipin (CL) is known to contain mostly C18:2 FAs corresponding to the composition in obese L, 50% of C18:2, and 35% of C18:1. In obese LP, both FAs dropped to drop to 20%, and C17:1 were predominant, reaching 55%. We hypothesize that CL-modified composition in obese LPs may alter mitochondrial function and limit lipid production.
Fichier principal
Vignette du fichier
2022_Abreu_Biomolecules.pdf (4.33 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Licence : CC BY - Paternité

Dates et versions

hal-04090347 , version 1 (09-05-2023)

Licence

Paternité

Identifiants

Citer

Sonia Abreu, Young-Kyoung Park, Camilla Pires de Souza, Lea Vidal, Pierre Chaminade, et al.. Lipid Readjustment in Yarrowia lipolytica Odd-Chain Fatty Acids Producing Strains. Biomolecules, 2022, 12 (8), pp.1026. ⟨10.3390/biom12081026⟩. ⟨hal-04090347⟩
53 Consultations
8 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More