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. 1971 Jun;106(3):960–965. doi: 10.1128/jb.106.3.960-965.1971

Factors Affecting Transfection in Bacillus stearothermophilus1

Uldis N Streips a,2, N E Welker a
PMCID: PMC248738  PMID: 4934070

Abstract

The conditions for the infection of Bacillus stearothermophilus 4S with TP-1C phage deoxyribonucleic acid (DNA) are described. Cells from log-phase cultures are the most susceptible to phage DNA infection (transfection). A cellular component (competence factor) which enhances transfection is released into the culture medium during the transition period between the log and stationary phase of growth. Transfection is stimulated in the order of decreasing effectiveness, by Fe3+, Mn2+, and Mg2+. The efficiency of transfection is the highest in cells growing at 60.5 C and does not occur in cells growing at 67 C although the cells are growing normally. A cellular component (competence factor) of this organism, which is released into the culture medium, advances by 40 min some step in the uptake of phage DNA.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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