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Related Experiment Videos

Correlation viability/morphology in Mycobacterium leprae.

M T Silva, P M Macedo, F Portaels

    Acta Leprologica
    |October 1, 1984
    PubMed
    Summary
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    Viability of Mycobacterium leprae (M. leprae) correlates with cell wall and membrane structure. Most M. leprae in tissues are dead, impacting growth rate calculations.

    Area of Science:

    • Microbiology
    • Cell Biology
    • Immunology

    Background:

    • Leprosy, caused by Mycobacterium leprae (M. leprae), presents diagnostic challenges.
    • Understanding M. leprae viability and morphology is crucial for leprosy research.

    Purpose of the Study:

    • To correlate M. leprae viability with ultrastructural cell characteristics.
    • To investigate the morphology of M. leprae in host tissues.

    Main Methods:

    • Quantitative ultrastructural analysis of M. leprae from armadillo and nude mouse samples.
    • Correlation with mouse foot pad technique and Morphological Index in leprosy patients.

    Main Results:

    • Viable M. leprae typically exhibit intact cell walls and symmetric membranes.

    Related Experiment Videos

  • Degenerating M. leprae cells are predominant in studied samples.
  • Asymmetric membranes observed in some M. leprae suggest potential for growth.

    • Conclusions:

    • Cellular structure provides indicators of M. leprae viability.
    • High numbers of dead M. leprae influence in vivo growth dynamics.
    • Asymmetric membranes may indicate actively growing M. leprae populations.