# Autophagy-deficient budding yeast cells are sensitive to freeze-thaw stress

**Authors:** Maria James, Grace K. Klain, Stacey O. Brito, Lupita Trejo, Teresa M. A. Okello, Verónica A. Segarra

PMC · DOI: 10.17912/micropub.biology.000929 · microPublication Biology · 2025-03-27

## TL;DR

This study shows that yeast cells without autophagy are more vulnerable to freeze-thaw stress, highlighting a new role for autophagy in stress survival.

## Contribution

The study reveals that autophagy is crucial for yeast survival under freeze-thaw stress, a previously unexplored stress condition.

## Key findings

- Autophagy-deficient yeast cells show increased sensitivity to freeze-thaw stress.
- Wild type yeast cells survive freeze-thaw stress better than atg1Δ and atg5Δ mutants.

## Abstract

Autophagy enables eukaryotes to recycle damaged and unneeded materials to ensure survival in times of stress such as starvation. However, the full range of cellular stress responses that activate and require autophagy remains unknown. This study has compared the survival of wild type,
atg1Δ, 
and
 atg5Δ
budding yeast cells following freeze-thaw stress. The results indicate that cells deficient in autophagy exhibit enhanced sensitivity to freeze-thaw stress.

## Linked entities

- **Genes:** ULK1 (unc-51 like autophagy activating kinase 1) [NCBI Gene 8408], ATG5 (autophagy related 5) [NCBI Gene 9474]
- **Species:** Saccharomyces cerevisiae (taxon 4932)

## Full-text entities

- **Species:** Saccharomyces cerevisiae (baker's yeast, species) [taxon 4932]

## Full text

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## Figures

1 figure with captions in the complete paper: https://tomesphere.com/paper/PMC11986705/full.md

## References

14 references — full list in the complete paper: https://tomesphere.com/paper/PMC11986705/full.md

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Source: https://tomesphere.com/paper/PMC11986705