Combined transcriptomics and metabolomics analyses reveal the molecular mechanism of heat tolerance in Pichia kudriavzevii
IntroductionPichia kudriavzevii is a prevalent non-Saccharomyces cerevisiae yeast in baijiu brewing. The aim of this study was to isolate a high temperature resistant Pichia kudriavzevii strain from the daqu of strong flavor baijiu and to elucidate its molecular mechanism.MethodsGrowth activity was...
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Frontiers Media S.A.
2025-04-01
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| author | Ning Wang Ning Wang Ning Wang Lu Li Lu Li Yi Ma Yi Ma Caihong Shen Zonghua Ao Chuan Song Muhammad Aamer Mehmood Puyu Zhang Ying Liu Xiaoke Sun Hui Zhu Hui Zhu |
| author_facet | Ning Wang Ning Wang Ning Wang Lu Li Lu Li Yi Ma Yi Ma Caihong Shen Zonghua Ao Chuan Song Muhammad Aamer Mehmood Puyu Zhang Ying Liu Xiaoke Sun Hui Zhu Hui Zhu |
| author_sort | Ning Wang |
| collection | DOAJ |
| description | IntroductionPichia kudriavzevii is a prevalent non-Saccharomyces cerevisiae yeast in baijiu brewing. The aim of this study was to isolate a high temperature resistant Pichia kudriavzevii strain from the daqu of strong flavor baijiu and to elucidate its molecular mechanism.MethodsGrowth activity was assessed at temperatures of 37°C, 40°C, 45°C, and 50°C. Morphological changes were observed by scanning electron microscopy at 37°C, 45°C, and 50°C. Subsequent analysis of the transcriptomics and metabolomics was undertaken to elucidate the molecular mechanism of heat tolerance.ResultsThe strain was able to tolerate high temperature of 50°C, undergoing substantial morphological alterations. Gene ontology (GO) analysis of the transcriptomics revealed that differentially expressed genes (DEGs) were enriched in pathways such as ATP biosynthesis process and mitochondrion; Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis showed that DEGs were up regulated in oxidative phosphorylation. Utilising liquid chromatograph-mass spectrometer, a total of 463 cationic differential metabolites and 352 anionic differential metabolites were detected and screened for differential substances that were closely related to heat tolerance (NAD+ and ADP); KEGG analysis showed that metabolites were up regulated in purine metabolism. Furthermore, correlation analyses of transcriptomics-metabolomics demonstrated a strong positive correlation between the metabolites NAD+ and ADP, and multiple DEGs of the oxidative phosphorylation pathway.DiscussionThese results suggest that the heat tolerant strain can be able to counteract high temperature environment by up regulating energy metabolism (especially oxidative phosphorylation) to increase ATP production. |
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| issn | 1664-302X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Microbiology |
| spelling | doaj-art-4bbd3c73217a4215b048fcf0d88849502025-08-20T02:08:30ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2025-04-011610.3389/fmicb.2025.15720041572004Combined transcriptomics and metabolomics analyses reveal the molecular mechanism of heat tolerance in Pichia kudriavzeviiNing Wang0Ning Wang1Ning Wang2Lu Li3Lu Li4Yi Ma5Yi Ma6Caihong Shen7Zonghua Ao8Chuan Song9Muhammad Aamer Mehmood10Puyu Zhang11Ying Liu12Xiaoke Sun13Hui Zhu14Hui Zhu15Sichuan Province Engineering Technology Research Center of Liquor-Making Grains, School of Bioengineering, Sichuan University of Science and Engineering, Yibin, ChinaLiquor Brewing Biotechnology and Application Key Laboratory of Sichuan Province, Yibin, ChinaNational Engineering Research Center of Solid-State Brewing, Luzhou Laojiao Co., Ltd., Luzhou, ChinaSichuan Province Engineering Technology Research Center of Liquor-Making Grains, School of Bioengineering, Sichuan University of Science and Engineering, Yibin, ChinaLiquor Brewing Biotechnology and Application Key Laboratory of Sichuan Province, Yibin, ChinaSichuan Province Engineering Technology Research Center of Liquor-Making Grains, School of Bioengineering, Sichuan University of Science and Engineering, Yibin, ChinaLiquor Brewing Biotechnology and Application Key Laboratory of Sichuan Province, Yibin, ChinaNational Engineering Research Center of Solid-State Brewing, Luzhou Laojiao Co., Ltd., Luzhou, ChinaNational Engineering Research Center of Solid-State Brewing, Luzhou Laojiao Co., Ltd., Luzhou, ChinaNational Engineering Research Center of Solid-State Brewing, Luzhou Laojiao Co., Ltd., Luzhou, ChinaSichuan Province Engineering Technology Research Center of Liquor-Making Grains, School of Bioengineering, Sichuan University of Science and Engineering, Yibin, ChinaSichuan Province Engineering Technology Research Center of Liquor-Making Grains, School of Bioengineering, Sichuan University of Science and Engineering, Yibin, ChinaSichuan Yibin Hengshengfu Liquor Industry Group Co., Ltd., Yibin, ChinaSichuan Yibin Hengshengfu Liquor Industry Group Co., Ltd., Yibin, ChinaSichuan Province Engineering Technology Research Center of Liquor-Making Grains, School of Bioengineering, Sichuan University of Science and Engineering, Yibin, ChinaLiquor Brewing Biotechnology and Application Key Laboratory of Sichuan Province, Yibin, ChinaIntroductionPichia kudriavzevii is a prevalent non-Saccharomyces cerevisiae yeast in baijiu brewing. The aim of this study was to isolate a high temperature resistant Pichia kudriavzevii strain from the daqu of strong flavor baijiu and to elucidate its molecular mechanism.MethodsGrowth activity was assessed at temperatures of 37°C, 40°C, 45°C, and 50°C. Morphological changes were observed by scanning electron microscopy at 37°C, 45°C, and 50°C. Subsequent analysis of the transcriptomics and metabolomics was undertaken to elucidate the molecular mechanism of heat tolerance.ResultsThe strain was able to tolerate high temperature of 50°C, undergoing substantial morphological alterations. Gene ontology (GO) analysis of the transcriptomics revealed that differentially expressed genes (DEGs) were enriched in pathways such as ATP biosynthesis process and mitochondrion; Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis showed that DEGs were up regulated in oxidative phosphorylation. Utilising liquid chromatograph-mass spectrometer, a total of 463 cationic differential metabolites and 352 anionic differential metabolites were detected and screened for differential substances that were closely related to heat tolerance (NAD+ and ADP); KEGG analysis showed that metabolites were up regulated in purine metabolism. Furthermore, correlation analyses of transcriptomics-metabolomics demonstrated a strong positive correlation between the metabolites NAD+ and ADP, and multiple DEGs of the oxidative phosphorylation pathway.DiscussionThese results suggest that the heat tolerant strain can be able to counteract high temperature environment by up regulating energy metabolism (especially oxidative phosphorylation) to increase ATP production.https://www.frontiersin.org/articles/10.3389/fmicb.2025.1572004/fullPichia kudriavzeviitranscriptomicsmetabolomicshigh temperature stressheat tolerance mechanism |
| spellingShingle | Ning Wang Ning Wang Ning Wang Lu Li Lu Li Yi Ma Yi Ma Caihong Shen Zonghua Ao Chuan Song Muhammad Aamer Mehmood Puyu Zhang Ying Liu Xiaoke Sun Hui Zhu Hui Zhu Combined transcriptomics and metabolomics analyses reveal the molecular mechanism of heat tolerance in Pichia kudriavzevii Frontiers in Microbiology Pichia kudriavzevii transcriptomics metabolomics high temperature stress heat tolerance mechanism |
| title | Combined transcriptomics and metabolomics analyses reveal the molecular mechanism of heat tolerance in Pichia kudriavzevii |
| title_full | Combined transcriptomics and metabolomics analyses reveal the molecular mechanism of heat tolerance in Pichia kudriavzevii |
| title_fullStr | Combined transcriptomics and metabolomics analyses reveal the molecular mechanism of heat tolerance in Pichia kudriavzevii |
| title_full_unstemmed | Combined transcriptomics and metabolomics analyses reveal the molecular mechanism of heat tolerance in Pichia kudriavzevii |
| title_short | Combined transcriptomics and metabolomics analyses reveal the molecular mechanism of heat tolerance in Pichia kudriavzevii |
| title_sort | combined transcriptomics and metabolomics analyses reveal the molecular mechanism of heat tolerance in pichia kudriavzevii |
| topic | Pichia kudriavzevii transcriptomics metabolomics high temperature stress heat tolerance mechanism |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2025.1572004/full |
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