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the claim

Bacterial persister cells are phenotypic variants of the wild-type rather than mutants.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that bacterial persister cells are phenotypic variants of the wild-type rather than mutants?

Yes. Bacterial persister cells represent transient phenotypic variants capable of surviving antimicrobial stress through non-genetic heterogeneity rather than stable genetic mutations.

Verdict: SUPPORTED · 2 sources for, 0 against · Last checked

The analysis

The retrieved literature distinguishes persister cells as phenotypic variants or states arising from stochastic gene expression or environmental adaptation, lacking the permanent genetic fixation characteristic of mutation-driven resistance.

Evidence for · 2
Cell-to-Cell and Patient-to-Patient Variability in Antimicrobial Resistance.
2025
Identifies persister cell formation as a form of cell-to-cell phenotypic variability rather than permanent genetic mutation.
Get citation
X, H., J, H., CC, Z., & MCS, W. (2025). Cell-to-Cell and Patient-to-Patient Variability in Antimicrobial Resistance.. doi.org. https://doi.org/10.3390/microorganisms13122766

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More for · 1
Selective context, rather than persister cycling alone, drives resistance fixation in Escherichia coli.
2026
Shows that persister cycling states lack detectable high-frequency genetic fixation, distinguishing them from mutation-induced resistance.
Get citation
G, P., H, K., & S, S. (2026). Selective context, rather than persister cycling alone, drives resistance fixation in Escherichia coli.. doi.org. https://doi.org/10.1038/s44259-026-00261-0

What does the evidence say?

The retrieved literature distinguishes persister cells as phenotypic variants or states arising from stochastic gene expression or environmental adaptation, lacking the permanent genetic fixation characteristic of mutation-driven resistance.

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