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Title: Comprehensive metabolomic, lipidomic and microscopic profiling of Yarrowia lipolytica during lipid accumulation identifies targets for increased lipogenesis

Journal Article · · PLoS One, 10(4):e0123188

Yarrowia lipolytica is an oleaginous ascomycete yeast that accumulates large amounts of lipids and has potential as a biofuel producing organism. Despite a growing scientific literature focused on lipid production by Y. lipolytica, there remain significant knowledge gaps regarding the key biological processes involved. We applied a combination of metabolomic and lipidomic profiling approaches as well as microscopic techniques to identify and characterize the key pathways involved in de novo lipid accumulation from glucose in batch cultured, wild-type Y. lipolytica. We found that lipids accumulated rapidly and peaked at 48 hours during the five day experiment, concurrent with a shift in amino acid metabolism. We also report that Y. lipolytica secretes disaccharides early in batch culture and reabsorbs them when extracellular glucose is depleted. Exhaustion of extracellular sugars coincided with thickening of the cell wall, suggesting that genes involved in cell wall biogenesis may be a useful target for improving the efficiency of lipid producing yeast strains.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States). Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1179505
Report Number(s):
PNNL-SA-105704; 48167; 47736; KP1601010
Journal Information:
PLoS One, 10(4):e0123188, Vol. 10, Issue 4
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 43 works
Citation information provided by
Web of Science

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Cited By (18)

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Bioactivity and biotechnological production of punicic acid journal March 2018
Engineering Yarrowia lipolytica for Use in Biotechnological Applications: A Review of Major Achievements and Recent Innovations journal June 2018
Impact of forced fatty acid synthesis on metabolism and physiology of Saccharomyces cerevisiae journal August 2018
Multi-omics analysis reveals regulators of the response to nitrogen limitation in Yarrowia lipolytica journal February 2016
Engineering Yarrowia lipolytica to produce biodiesel from raw starch journal September 2015
A molecular genetic toolbox for Yarrowia lipolytica journal January 2017
Oleaginicity of the yeast strain Saccharomyces cerevisiae D5A journal September 2018
In silico identification of metabolic engineering strategies for improved lipid production in Yarrowia lipolytica by genome-scale metabolic modeling journal July 2019
Metabolic Engineering of Oleaginous Yeasts for Production of Fuels and Chemicals journal November 2017
MPLEx: a Robust and Universal Protocol for Single-Sample Integrative Proteomic, Metabolomic, and Lipidomic Analyses
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  • The University of North Carolina at Chapel Hill University Libraries https://doi.org/10.17615/xw6w-ts66
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Yarrowia lipolytica as a biotechnological chassis to produce usual and unusual fatty acids journal January 2016
Leucine Biosynthesis Is Involved in Regulating High Lipid Accumulation in Yarrowia lipolytica journal June 2017
Regulation of Nitrogen Metabolism by GATA Zinc Finger Transcription Factors in Yarrowia lipolytica journal February 2017
Metabolic Flux Analysis of Lipid Biosynthesis in the Yeast Yarrowia lipolytica Using 13C-Labled Glucose and Gas Chromatography-Mass Spectrometry journal July 2016
Sequence Assembly of Yarrowia lipolytica Strain W29/CLIB89 Shows Transposable Element Diversity journal September 2016
Synthetic Biology and Metabolic Engineering Approaches and Its Impact on Non-Conventional Yeast and Biofuel Production journal April 2017
Ameliorating the Metabolic Burden of the Co-expression of Secreted Fungal Cellulases in a High Lipid-Accumulating Yarrowia lipolytica Strain by Medium C/N Ratio and a Chemical Chaperone journal January 2019