Abstract
OUR interest in the composition of rhizobial gums1,2 led of to attempt transformations using, first a preparation based on that of Ljunggren3 and later the cruder, and therefore deoxyribonucleic acid-rich, fraction used by Lange and Alexander4. In the first case we aimed at restoring virulence to avirulent strains of clover Rhizobia, including two used by Ljunggren, but with R. trifolii, SU297/31 as the source of ‘polysaccharide’. In the second we attempted a wider transformation, similar to those reported by Lange and Alexander, between clover and lucerne. In the latter we included a specially prepared deoxyribonucleic acid fraction as an additional treatment.
Similar content being viewed by others
Article PDF
References
Humphrey, Beverley A., and Vincent, J. M., J. Gen. Microbiol., 21, 477 (1959).
Humphrey, Beverley A., Nature, 184, 1802 (1959).
Ljunggren, H., Nature, 191, 623 (1961).
Lange, R. T., and Alexander, M., Canad. J. Microbiol., 7, 959 (1961).
Ephrussi-Taylor, H., Adv. Virus Res., 3, 275 (1955).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
HUMPHREY, B., VINCENT, J. Polysaccharide Fractions and Transformations in Rhizobium. Nature 199, 927 (1963). https://doi.org/10.1038/199927a0
Issue Date:
DOI: https://doi.org/10.1038/199927a0
This article is cited by
-
Composition of extracellular polysaccharides ofRhizobium trifolii
Antonie van Leeuwenhoek (1972)
-
Zur Transformierbarkeit der Knöllchenbakterien
Archiv für Mikrobiologie (1965)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.