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Yang J, et al.  (2012) Integrated phospholipidomics and transcriptomics analysis of Saccharomyces cerevisiae with enhanced tolerance to a mixture of acetic acid, furfural, and phenol. OMICS 16(7-8):374-86

Abstract: A mixture of acetic acid, furfural, and phenol (AFP), three representative lignocellulose-derived inhibitors, significantly inhibited the growth and bioethanol production of Saccharomyces cerevisiae. In order to uncover the mechanisms behind the enhanced tolerance of an inhibitor-tolerant S. cerevisiae strain (T), we measured the plasma membrane properties, which significantly influence cellular adaptation to inhibitors, of T strain and its parental strain (P) with and without AFP treatment. We integrated data obtained from multi-statistics-assisted phospholipidomics and parallel transcriptomics by using LC-tandem MS and microarray analysis. With the AFP treatment, the transcriptional changes of fatty acid metabolic genes showed a strong correlation with the increase of fatty-acyl-chain length of phosphatidylcholine (PC) and phosphatidylinositol (PI). This suggests a possible compensatory mechanism to cope with the increase of plasma membrane permeability and fluidity in both strains. Moreover, the absence of phosphatidylserine (PS) and phosphatidylethanolamine (PE) species from the most variable phospholipid species group was a discriminative feature of the T strain. This resulted from the decrease of CHO1 and increase of CHO2 levels of the T strain upon AFP treatment. These novel findings reveal that the coordinated transcription and phospholipid composition changes contribute to the increased robustness of the T strain and highlight potential metabolic engineering targets for mutants with higher tolerance.

Status: Published Type: Journal Article PubMed ID: 22734833

Topics addressed in this paper

Number of different genes curated to this paper: 31

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Topics Topics not linked to Genes Genes linked to topics (#1 - 10 )
ACC1 CHO1 CHO2 ELO1 ERG1 ERG10 ERG11 ERG12 ERG13 ERG2
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Cell Growth and Metabolism yg ball
Omics yg ball
Other large-scale proteomic analysis yg ball
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Topics Genes linked to topics (#11 - 20 )
ERG20 ERG24 ERG25 ERG26 ERG27 ERG28 ERG3 ERG4 ERG5 ERG6
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Topics Genes linked to topics (#21 - 30 )
ERG7 ERG8 ERG9 FAS1 FAS2 FEN1 HMG1 HMG2 MVD1 POX1
Additional Literature blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball
Transcription blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball
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Topics Genes linked to topics (#31 )
SUR4
Additional Literature blue ball
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