Skip to main content
Log in

The nexus between peroxisome abundance and chronological ageing in Saccharomyces cerevisiae

  • Research Article
  • Published:
Biogerontology Aims and scope Submit manuscript

Abstract

Ageing is characterized by changes in several cellular processes, with dysregulation of peroxisome function being one of them. Interestingly, the most conserved function of peroxisomes, ROS homeostasis, is strongly associated with ageing and age-associated pathologies. Previous studies have identified a role for peroxisomes in the regulation of chronological lifespan in yeast. In this study, we report the effect of altered peroxisome number on the chronological lifespan of yeast in two different growth media conditions. Three mutants, pex11, pex25 and pex27, defective in peroxisome fission, have been thoroughly investigated for the chronological lifespan. Reduced chronological lifespan of all the mutants was observed in peroxisome-inducing growth conditions. Furthermore, the combined deletion pex11pex25 exhibited the most prominent reduction in lifespan. Interestingly altered peroxisomal phenotype upon ageing was observed in all the cells. Increased ROS accumulation and reduced catalase activity was exhibited by chronologically aged mutant cells. Interestingly, mutants with reduced number of peroxisomes concomitantly also exhibited an accumulation of free fatty acids and increased number of lipid droplets. Taken together, our results reveal a previously unrealized effect of fission proteins in the chronological lifespan of yeast.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

Data availability

Not applicable.

Code availability

Not applicable.

References

Download references

Funding

This work was supported by Department of Biotechnology (DBT), Government of India [BT/PR16325/NER/95/117/2015], [BT/PR25097/NER/95/1013/2017] and Top-up of start-up grant from IIT Guwahati.

Author information

Authors and Affiliations

Authors

Contributions

RD performed the experiments, prepared figures, tables and wrote the draft of the manuscript. SN wrote and critically edited the manuscript and conceived the concept for the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Shirisha Nagotu.

Ethics declarations

Conflict of interest

The authors declare that they have no conflicts of interest.

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary material 1 (DOCX 4026.2 kb)

Rights and permissions

Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Deb, R., Nagotu, S. The nexus between peroxisome abundance and chronological ageing in Saccharomyces cerevisiae. Biogerontology 24, 81–97 (2023). https://doi.org/10.1007/s10522-022-09992-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10522-022-09992-9

Keywords

Navigation