ICT1 deficiency leads to reduced oxygen resistance due to the cell wall damage in S. cerevisiae

Genes Genomics. 2022 Aug;44(8):913-922. doi: 10.1007/s13258-021-01208-7. Epub 2022 Jan 30.

Abstract

Background: Disruption of ICT1 has been known to cause a significant deficiency in the phospholipid composition which is necessary for cell stress adaptation. However, the effects of ICT1 deletion on antioxidant research are not clear.

Objective: Construct a knockout strain to investigate the efficacy of ICT1 on antioxidant activity.

Methods: The antioxidant-related genes and phospholipid-related genes were determined by RT-PCR, the cell wall shape was observed by TME, and CWI pathway phosphorylation experiments were also analyzed by HPLC.

Results: The expression of antioxidant related genes and phospholipid-related genes has a slight reduction compared to the wild type. The cell wall was observed impaired with apparent CWI pathway phosphorylation weakening in the mutant.

Conclusion: These findings indicate the role of ICT1 on antioxidant activity because it not only directly affects phospholipid composition but also further leads to the activation of CWI.

Keywords: CWI; ICT1; Oxidative stress; Plasma membrane; Saccharomyces cerevisiae.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antioxidants* / metabolism
  • Cell Wall
  • Oxygen / metabolism
  • Oxygen / pharmacology
  • Phospholipids / metabolism
  • Phospholipids / pharmacology
  • Saccharomyces cerevisiae* / metabolism

Substances

  • Antioxidants
  • Phospholipids
  • Oxygen