Abstract
Enterococcus faecalis (E. faecalis) belongs to lactic acid bacteria which can be used as a probiotic additive and feed, bringing practical value to the health of humans and animals. The prebiotic function of tea polyphenols lays a foundation for green tea polyphenols (GTP) to repair the adverse changes of E. faecalis under stress conditions. In this study, RNA-sequence analysis was used to explore the protective effect of GTP on E. faecalis under bile salt stress. A total of 50 genes were found to respond to GTP under bile salts stress, containing 18 up-regulated and 32 down-regulated genes. The results showed that multiple genes associated with cell wall and membrane, transmembrane transport, nucleotide transport and metabolism were significantly differentially expressed (P < 0.05), while GTP intervention can partly alleviate the detrimental effects of bile salt on amino acid metabolism and transport. The present study provides the whole genome transcriptomics of E. faecalis under bile salt stress and GTP intervention which help us understand the growth and mechanism of continuous adaptation of E. faecalis under stress conditions.
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Data Availability
The authors confirm that all data generated or analyzed during this study are included in this published article [and its supplementary information files]. The NCBI BioProject is PRJNA796179 [Transcriptome sequencing of Enterococcus faecalis].
Abbreviations
- E. faecalis :
-
Enterococcus faecalis
- E. faecalis 131-2:
-
Enterococcus faecalis131-2
- GTP:
-
Green tea polyphenols
- GO:
-
Gene ontology
- KEGG:
-
Kyoto encyclopedia of genes and genomes
- SEM:
-
Scanning electron microscopy
- DEGs:
-
Differentially expressed genes
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Funding
This work was supported by the Fundamental Research Funds for the Central Universities (2020SKTY01), the National Natural Science Foundation of China (31650006), "Yueqi Young Scholars" Funding Program of China University of Mining and Technology (Beijing), and the Key Research and Development Project of Zhejiang Province (2018C02047).
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LZ and JX drafted the manuscript. LZ and ZZ analyzed the RNA sequencing data. LZ, ZW, and RY conducted the statistics study. All authors critically revised the manuscript. All authors read and approved the final manuscript.
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Zhang, L., Xie, J., Zhang, Z. et al. RNA-Seq Transcriptomic Analysis of Green Tea Polyphenols Modulation of Differently Expressed Genes in Enterococcus faecalis Under Bile Salt Stress. Curr Microbiol 79, 147 (2022). https://doi.org/10.1007/s00284-022-02844-2
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DOI: https://doi.org/10.1007/s00284-022-02844-2