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. 1968 Mar;95(3):867–875. doi: 10.1128/jb.95.3.867-875.1968

Fractionation of Transformable Bacteria from Competent Cultures of Bacillus subtilis on Renografin Gradients

Florence Haseltine Cahn 1, Maurice S Fox 1
PMCID: PMC252104  PMID: 4966830

Abstract

A population of Bacillus subtilis can be fractionated into at least two components on the basis of their buoyant densities on a Renografin gradient. In competent cultures, most, and perhaps all, of the competent bacteria appear in the lighter fraction which composes 2 to 10% of the bulk population. These “lighter” bacteria are the only bacteria capable of incorporating transforming deoxyribonucleic acid.

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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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