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Related Experiment Videos

Cell division in Sporosarcina ureae

T J Beveridge

    Canadian Journal of Microbiology
    |February 1, 1980
    PubMed
    Summary

    Sporosarcina ureae cell division involves multiple perpendicular planes and complex wall layers. The regularly structured (RS) layer sloughs and grows inward, delaying complete cell separation until packets of eight cells form.

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    Area of Science:

    • Microbiology
    • Cell Biology
    • Structural Biology

    Background:

    • Sporosarcina ureae exhibits complex cell division patterns.
    • Understanding bacterial cell wall morphogenesis is crucial for antibiotic development.

    Purpose of the Study:

    • To elucidate the intricate cell division process in Sporosarcina ureae.
    • To detail the structural dynamics of the cell wall during septation.

    Main Methods:

    • Electron microscopy techniques, including thin-sectioning and freeze-etching.
    • High-resolution imaging of Sporosarcina ureae cells during division.

    Main Results:

    • Cell division occurs in two to three perpendicular planes.
    • The complex cell wall comprises an amorphous layer and a regularly structured (RS) layer.
    • Septation involves plasma membrane ingrowth and the unique behavior of the RS layer, including buckling and peripheral ingrowth.
    • Complete cell separation is delayed, often resulting in packets of eight cells.

    Conclusions:

    • Sporosarcina ureae employs a multi-planar division strategy.
    • The cell wall's regularly structured (RS) layer plays a dynamic role in accommodating cell division and separation.
    • The observed division pattern influences the final cell arrangement.

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