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. 1982 Jul;44(1):242–245. doi: 10.1128/aem.44.1.242-245.1982

Growth-Related Substituent Changes in Exopolysaccharides of Fast-Growing Rhizobia

Martin C Cadmus 1, Kermit A Burton 1, Morey E Slodki 1
PMCID: PMC241996  PMID: 16346062

Abstract

Pyruvic acid and O-acetyl groups are the major noncarbohydrate substituents in exopolysaccharides (EPS) produced by fast-growing species of Rhizobium. EPS substituent variations were observed among strains of the same species. The amounts of these substituents also varied with culture age; pyruvic acid increased in the EPS of all four species, whereas O-acetyl increased in Rhizobium trifolii and R. leguminosarum EPS, decreased in R. meliloti EPS, and remained constant in R. phaseoli EPS. The use of glycerol as a substrate for R. meliloti significantly increased EPS yields, whereas mannitol increased those of the other three Rhizobium species.

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Selected References

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

  1. Bohlool B. B., Schmidt E. L. Lectins: a possible basis for specificity in the Rhizobium--legume root nodule symbiosis. Science. 1974 Jul 19;185(4147):269–271. doi: 10.1126/science.185.4147.269. [DOI] [PubMed] [Google Scholar]
  2. Duckworth M., Yaphe W. Definitive assay for pyruvic acid in agar and other algal polysaccharides. Chem Ind. 1970 Jun 6;23:747–748. [PubMed] [Google Scholar]
  3. GREGORY J. D. The effect of borate on the carbazole reaction. Arch Biochem Biophys. 1960 Aug;89:157–159. doi: 10.1016/0003-9861(60)90036-9. [DOI] [PubMed] [Google Scholar]
  4. HUMPHREY B. A., VINCENT J. M. Extracellular polysaccharides of Rhizobium. J Gen Microbiol. 1959 Dec;21:477–484. doi: 10.1099/00221287-21-3-477. [DOI] [PubMed] [Google Scholar]
  5. Hepper C. M. Composition of extracellular polysaccharides of Rhizobium trifolii. Antonie Van Leeuwenhoek. 1972;38(3):437–445. doi: 10.1007/BF02328112. [DOI] [PubMed] [Google Scholar]
  6. Mort A. J., Bauer W. D. Composition of the Capsular and Extracellular Polysaccharides of Rhizobium japonicum: CHANGES WITH CULTURE AGE AND CORRELATIONS WITH BINDING OF SOYBEAN SEED LECTIN TO THE BACTERIA . Plant Physiol. 1980 Jul;66(1):158–163. doi: 10.1104/pp.66.1.158. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Owens L. D., Wright D. A. Production of the Soybean-Chlorosis Toxin by Rhizobium japonicum in Pure Culture. Plant Physiol. 1965 Sep;40(5):931–933. doi: 10.1104/pp.40.5.931. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Robertsen B. K., Aman P., Darvill A. G., McNeil M., Albersheim P. Host-Symbiont Interactions : V. THE STRUCTURE OF ACIDIC EXTRACELLULAR POLYSACCHARIDES SECRETED BY RHIZOBIUM LEGUMINOSARUM AND RHIZOBIUM TRIFOLII. Plant Physiol. 1981 Mar;67(3):389–400. doi: 10.1104/pp.67.3.389. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Somme R. Chemical analysis of exocellular, acid polysaccharides from seven Rhizobium strains. Carbohydr Res. 1974 Mar;33(1):89–96. doi: 10.1016/s0008-6215(00)82942-0. [DOI] [PubMed] [Google Scholar]

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