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Rapid yeast DNA staining method for flow cytometry.

D Kuchenbecker, G Braun

    Journal of Basic Microbiology
    |January 1, 1985
    PubMed
    Summary
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    Optimizing olivomycin staining of yeast cells involves specific concentrations of olivomycin, sodium chloride (NaCl), and magnesium chloride (MgCl2). Researchers found the ideal conditions for accurate fluorescence intensity measurements.

    Area of Science:

    • Biophysical Chemistry
    • Cell Biology
    • Analytical Chemistry

    Background:

    • Accurate quantification of cellular components often relies on fluorescent staining techniques.
    • Olivomycin is a fluorescent antibiotic used to stain nucleic acids, particularly DNA.
    • Optimizing staining protocols is crucial for reliable experimental results.

    Purpose of the Study:

    • To investigate the impact of varying concentrations of olivomycin, NaCl, and MgCl2 on yeast cell fluorescence intensity.
    • To determine the optimal conditions for olivomycin staining of yeast cells for accurate fluorescence measurements.

    Main Methods:

    • Yeast cells were stained with olivomycin under different concentrations of NaCl and MgCl2.
    • Fluorescence intensity of stained cells was measured.

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  • Staining time was also evaluated for optimal results.

    • Main Results:

    • The optimal staining solution contained 100 µg/mL olivomycin, 40 mM MgCl2, and 1 M NaCl.
    • A staining duration of 12 minutes was found to be sufficient for proper yeast cell staining.
    • These conditions yielded the best fluorescence intensity results.

    Conclusions:

    • Specific concentrations of olivomycin, NaCl, and MgCl2 are critical for achieving optimal fluorescence intensity in stained yeast cells.
    • The established protocol provides a reliable method for quantitative fluorescence analysis of yeast cells using olivomycin.