Exogenous trehalose application promotes survival by alleviating oxidative stress and affecting transcriptome in ethanol-stressed Wickerhamomyces anomalus
Bibliographic Data
| ID | 21295491 |
|---|---|
| Authors | Yinfeng Li (0000-0002-7673-6706, Guizhou Institute of Technology), Guilan Jiang (Guizhou Institute of Technology), Hua Long (0000-0002-1858-7108, Guizhou Institute of Technology), Yifa Liao (Guizhou Institute of Technology), Mingzheng Huang (0000-0002-3009-0559, Guizhou Institute of Technology), Zhihai Yu (0000-0002-6567-2743, Guizhou Institute of Technology), Shuang Cheng (0000-0001-6301-175X, Nanyang Institute of Technology), Ying Wang (0000-0003-3126-1134, Nanyang Institute of Technology), Xiaozhu Liu (0000-0002-7800-3100, Guizhou Institute of Technology) |
| Year | 2023 |
| Volume | 125 |
| Issue | 10 |
| Pages | 3506-3520 |
| Publication date | 2023-10-10 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | British Food Journal (JOURNAL) |
| Journal identifiers | ISSN: 0007-070X • E-ISSN: 1758-4108 |
| Publisher | Emerald (PUBLISHER) |
| DOI | 10.1108/bfj-01-2023-0061 |
| OpenAlex | W4377024315 |
| Language | EN |
| References cited | 30 |
Purpose Increased ethanol accumulation during ethanol fermentation generates stress in yeast cells, which finally reduces the fermentation performance and efficiency. Trehalose, a potential stress protectant, has been reported to regulate the response of yeast to diverse environmental stresses. This study aimed to explore how exogenous trehalose application affects the survival, transcriptome and antioxidant enzymes of Wickerhamomyces anomalus grown under ethanol stress conditions. Design/methodology/approach Exogenous trehalose was applied to the growth condition of W. anomalus , and optical densitometric method was used to detect contents of intracellular trehalose and MDA and activities of CAT and SOD. The survival was evaluated using spot analysis. Differentially expressed genes (DEGs) were identified through transcriptomics analysis. Findings The results showed that ethanol stress induced the accumulation of intracellular trehalose, with further exogenous trehalose application improving the survival and alleviating oxidative stress in ethanol-stressed W. anomalus . Transcriptomic results showed that trehalose has pleiotropic regulating effects on ethanol-stressed W. anomalus since most DEGs annotated to energy metabolism, amino acid metabolism, translation, folding, sorting and transport were affected post trehalose addition. Therefore, it is found that trehalose protected W. anomalus against ethanol stress, and these findings provide interesting insights into the mechanistic role of trehalose in improving ethanol stress tolerance of W. anomalus . Originality/value (1) Protective effect of exogenous trehalose addition on the survival of ethanol-stressed W. anomalus was proved. (2) Exogenous trehalose addition could partly alleviate oxidative stress induced by ethanol stress and affect transcriptome in W. anomalus
Biology · Fermentation · Gene · Gene expression · Oxidative stress · Transcriptome · Trehalose · Yeast · Biochemistry · Biofuel production and bioconversion · Chemistry · Fermentation and Sensory Analysis · Food Science · Fungal and yeast genetics research
| Highly cited | No |
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