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RNA-Seq comparative analysis reveals the response of Enterococcus faecalis TV4 under fluoride exposure
Abstract
Enterococcus faecalis is one of the main components of symbiotic bacteria in the intestine of silkworm (Bombyx mori L.). The abundance of E. faecalis in the intestine of silkworm is affected by fluoride exposure. However, the response mechanism of E. faecalis toward fluoride remains largely unknown. In this study, a strain of E. faecalis (named TV4), which is a symbiotic bacteria of silkworm, was isolated and characterized. Inhibition assay showed that fluoride can significantly inhibit the growth of the TV4 strain (P < 0.05) after culture for 4 h. Finally, Illumina X-Ten platform was used to investigate the response mechanism of E. faecalis TV4 under fluoride exposure. We found that the TV4 strain demonstrated significant changes in its carbohydrate transport and metabolism and energy metabolism. The transcriptome sequencing results revealed that 237 genes were differentially expressed for TV4 grown after fluoride exposure, i.e., 92 genes were differentially up-regulated and 145 genes were differentially down-regulated. Many of the down-regulated genes were involved in cell carbohydrate transport and metabolism and energy production, whereas the up-regulated genes were mostly related to ethanolamine utilization and amino acid synthesis and metabolism. Our results revealed that strain TV4 reduced its carbohydrate metabolism and energy metabolism and increased ethanolamine utilization and amino acid metabolism to adapt and survive under fluoride exposure. This study enhances o…
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“However, 4.76 Mm NaF inhibited E11 enzyme family genes and energy-synthesizing genes.70”
From Effect of Fluoride on Gut Microbiota: A Systematic Review (2025) · cites this paper as [70]
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“upregulated in Enterococcus faecalis in response to fluoride stress(48)”
From Membrane exporters of fluoride ion (2021) · cites this paper as [48]
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Johnston, P. R., & Rolff, J. (2015) · PLOS Pathogens · doi:10.1371/journal.ppat.1005246 · Cited by 179
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Cited by
Sorted by citations
Membrane exporters of fluoride ion
McIlwain, B. C., Ruprecht, M. T., & Stockbridge, R. B. (2021) · Annual Review of Biochemistry · doi:10.1146/annurev-biochem-071520-112507 · Cited by 69
Effect of Fluoride on Gut Microbiota: A Systematic Review
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Metadata
- Authors
- Li, G., Shi, M., Zhao, S., Li, D., Long, Y., Yang, C., & Zhu, Y.
- ORCID
- Li, Guannan
- Venue
- Gene
- Publisher
- Elsevier BV
- Published
- 2020-02
- Volume
- 726
- Pages
- 144197
- ISSN
- 0378-1119
- Cited by
- 18
- References
- 2
- Language
- en
- Funders
- Chongqing Municipal Human Resources and Social Security Bureau
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