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Related Experiment Videos

[Comparative morphological studies of yeast cells using automated image analysis].

P Mühlig, C Strunk, C Kühne

    Zeitschrift Fur Allgemeine Mikrobiologie
    |January 1, 1977
    PubMed
    Summary

    Copper ions increase Candida utilis cell volume, including nucleus and vacuoles. However, mitochondria volume and density remain unaffected by copper exposure.

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    Area of Science:

    • Microbiology
    • Cell Biology
    • Biochemistry

    Background:

    • Candida utilis is a yeast with industrial applications.
    • Copper ions are essential micronutrients but can be toxic at higher concentrations.
    • Understanding cellular responses to metal ions is crucial for biotechnology and environmental science.

    Purpose of the Study:

    • To investigate the ultrastructural changes in Candida utilis cells exposed to copper ions.
    • To quantify the effects of copper on cellular components using image analysis.
    • To develop a model describing copper's impact on yeast cell morphology.

    Main Methods:

    • Quantitative image analysis of Candida utilis cells.
    • Microscopic examination of cellular ultrastructure.
    • Exposure of yeast cultures to varying concentrations of copper ions.

    Main Results:

    • Copper ions significantly increase the overall cell volume of Candida utilis.
    • The volume of the nucleus, vacuoles, and cytoplasmic inclusions (particles, globules) also increases.
    • Mitochondrial absolute volume and density are not significantly altered by copper exposure.

    Conclusions:

    • Copper ions induce notable ultrastructural alterations in Candida utilis, primarily affecting cell and organelle volumes.
    • The yeast cell exhibits a compensatory volume increase in response to copper, without impacting mitochondrial integrity.
    • This study provides insights into the specific cellular mechanisms of copper toxicity and tolerance in yeast.

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