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Transcriptomics analysis of Komagataeibacter europaeus CGMCC 20445 during acetic acid fermentation

ABSTRACT: Transcriptomics analysis of Komagataeibacter europaeus CGMCC 20445 during acetic acid fermentation

PROVIDER: PRJNA707415 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13884003_1.fastq.gz	Fastqsanger.gz
	SRR13884003_2.fastq.gz	Fastqsanger.gz
	SRR13884004_1.fastq.gz	Fastqsanger.gz
	SRR13884004_2.fastq.gz	Fastqsanger.gz
	SRR13884005_1.fastq.gz	Fastqsanger.gz

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Transcriptomics analysis of Komagataeibacter europaeus CGMCC 20445 during acetic acid fermentation

Project description:We conducted transcriptome analysis of Komagataeibacter europaeus CGMCC 20445 samples under different acidity conditions to elucidate the changes in differentially expressed genes throughout the fermentation process.

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Transcriptome Analysis of <i>Komagataeibacter europaeus</i> CGMCC 20445 Responses to Different Acidity Levels During Acetic Acid Fermentation.

Project description:In the industrial production of high-acidity vinegar, the initial ethanol and acetic acid concentrations are limiting factors that will affect acetic acid fermentation. In this study, Komagataeibacter europaeus CGMCC 20445 was used for acetic acid shake flask fermentation at an initial ethanol concentration of 4.3% (v/v). We conducted transcriptome analysis of K. europaeus CGMCC 20445 samples under different acidity conditions to elucidate the changes in differentially expressed genes throughout the fermentation process. We also analyzed the expression of genes associated with acid-resistance mechanisms. Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis showed that the differentially expressed genes were enriched in ribosomes, citrate cycle, butanoate metabolism, oxidative phosphorylation, pentose phosphate, and the fatty acid biosynthetic pathways. In addition, this study found that K. europaeus CGMCC 20445 regulates the gene expression levels of cell envelope proteins and stress-responsive proteins to adapt to the gradual increase in acidity during acetic acid fermentation. This study improved the understanding of the acid resistance mechanism of K. europaeus and provided relevant reference information for the further genetic engineering of this bacterium.

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