THE INTERCONVERTIBILITY OF "R" AND "S" FORMS OF PNEUMOCOCCUS

1. Single cell cultures of "R" pneumococci may revert in all respects to the "S" type. 2. In all instances in which reversion has occurred the "R" forms have invariably reverted to the same specific type from which they were originally derived. 3. The transformation &qu...

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Detalles Bibliográficos
Autor principal: Dawson, Martin H.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1928
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2131392/
https://www.ncbi.nlm.nih.gov/pubmed/19869432
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author Dawson, Martin H.
author_facet Dawson, Martin H.
author_sort Dawson, Martin H.
collection PubMed
description 1. Single cell cultures of "R" pneumococci may revert in all respects to the "S" type. 2. In all instances in which reversion has occurred the "R" forms have invariably reverted to the same specific type from which they were originally derived. 3. The transformation "R" to "S" may be effected in vitro by growth in anti-"R" sera, as well as in vivo by the method of animal passage. 4. Reversion from "R" to "S" whether effected in vivo or in vitro, is always accompanied by the acquisition of maximal virulence.
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spelling pubmed-21313922008-04-18 THE INTERCONVERTIBILITY OF "R" AND "S" FORMS OF PNEUMOCOCCUS Dawson, Martin H. J Exp Med Article 1. Single cell cultures of "R" pneumococci may revert in all respects to the "S" type. 2. In all instances in which reversion has occurred the "R" forms have invariably reverted to the same specific type from which they were originally derived. 3. The transformation "R" to "S" may be effected in vitro by growth in anti-"R" sera, as well as in vivo by the method of animal passage. 4. Reversion from "R" to "S" whether effected in vivo or in vitro, is always accompanied by the acquisition of maximal virulence. The Rockefeller University Press 1928-03-31 /pmc/articles/PMC2131392/ /pubmed/19869432 Text en Copyright © Copyright, 1928, by The Rockefeller Institute for Medical Research New York This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).
spellingShingle Article
Dawson, Martin H.
THE INTERCONVERTIBILITY OF "R" AND "S" FORMS OF PNEUMOCOCCUS
title THE INTERCONVERTIBILITY OF "R" AND "S" FORMS OF PNEUMOCOCCUS
title_full THE INTERCONVERTIBILITY OF "R" AND "S" FORMS OF PNEUMOCOCCUS
title_fullStr THE INTERCONVERTIBILITY OF "R" AND "S" FORMS OF PNEUMOCOCCUS
title_full_unstemmed THE INTERCONVERTIBILITY OF "R" AND "S" FORMS OF PNEUMOCOCCUS
title_short THE INTERCONVERTIBILITY OF "R" AND "S" FORMS OF PNEUMOCOCCUS
title_sort interconvertibility of "r" and "s" forms of pneumococcus
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2131392/
https://www.ncbi.nlm.nih.gov/pubmed/19869432
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