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Related Experiment Videos

Cloning vector system for Corynebacterium glutamicum.

M Yoshihama, K Higashiro, E A Rao

    Journal of Bacteriology
    |May 1, 1985
    PubMed
    Summary
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    A new protoplast transformation system for Corynebacterium glutamicum was created using a chimeric plasmid. This method is efficient, yielding 10^4 transformants per microgram of DNA.

    Area of Science:

    • Microbiology
    • Molecular Biology
    • Biotechnology

    Background:

    • Corynebacterium glutamicum is a key industrial microorganism.
    • Efficient genetic manipulation is crucial for strain improvement.
    • Existing transformation methods for C. glutamicum have limitations.

    Purpose of the Study:

    • To develop a novel and efficient protoplast transformation system for Corynebacterium glutamicum.
    • To construct and characterize a chimeric plasmid vector for C. glutamicum transformation.
    • To optimize the transformation protocol for high yield.

    Main Methods:

    • Construction of a chimeric plasmid (pHY416) by joining a C. glutamicum cryptic plasmid and the B. subtilis plasmid pBD10.
    • Introduction of the chimeric plasmid into C. glutamicum protoplasts.

    Related Experiment Videos

  • Analysis and optimization of transformation parameters.
  • Assessment of neomycin and chloramphenicol resistance gene expression.

    • Main Results:

    • The chimeric vector pHY416 was successfully constructed.
    • The neomycin resistance gene was expressed in C. glutamicum, conferring resistance.
    • The chloramphenicol resistance gene was not expressed.
    • Optimized protocol yielded approximately 10^4 transformants per microgram of plasmid DNA.
    • The transformation system is simple and reproducible.

    Conclusions:

    • A robust protoplast transformation system for Corynebacterium glutamicum has been established.
    • The developed system offers a significant improvement in transformation efficiency.
    • This method facilitates genetic engineering of C. glutamicum for biotechnological applications.