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Factors affecting transformation of Micrococcus lysodeikticus
Journal of Bacteriology
|June 1, 1969
Abstract:
Relatively high transfo mation frequencies were obtained with Micrococcus lysodeikticus cells, previou[ill]sly grown in defined broth, with a tris(hydroxymethyl)-aminomethane-glutamate b uffer containing Mg(++), Ca(++), Ba(++), or Sr(++).
Insights
Micrococcus lysodeikticus cells grown in a specific buffer achieved high transformation frequencies. Divalent cations like magnesium, calcium, barium, and strontium enhanced this process.
Area of Science:
- Microbiology
- Bacteriology
Background:
- Micrococcus lysodeikticus is a bacterium relevant for genetic studies.
- Transformation efficiency is crucial for genetic manipulation in bacteria.
Purpose of the Study:
- To investigate factors influencing transformation frequencies in Micrococcus lysodeikticus.
- To determine the effect of specific divalent cations on transformation efficiency.
Main Methods:
- Culturing Micrococcus lysodeikticus in a defined broth.
- Utilizing a tris(hydroxymethyl)-aminomethane-glutamate buffer system.
- Supplementing the buffer with various divalent cations (Mg++, Ca++, Ba++, Sr++).
Main Results:
- High transformation frequencies were observed in Micrococcus lysodeikticus.
- The presence of Mg++, Ca++, Ba++, or Sr++ in the buffer significantly enhanced transformation frequencies.
- The specific cation type influenced the degree of enhancement.
Conclusions:
- The tested divalent cations are effective in promoting high transformation frequencies in Micrococcus lysodeikticus.
- Buffer composition, particularly cation content, plays a critical role in bacterial transformation efficiency.
- These findings can optimize genetic manipulation protocols for Micrococcus lysodeikticus.