Effect of the concentration of sodium chloride in the medium on the relative proportions of poly- and oligo-saccharides excreted by Rhizobium meliloti strain YE-2SL

Rhizobium meliloti mutant strains have been found which, in the presence of low concentrations of NaCl, produce a galactoglucan instead of the usual succinoglycan. When grown in a mannitol-glutamic acid-salts medium, the principal products secreted by R. meliloti YE-2Sl were comparable quantities of...

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Veröffentlicht in:Carbohydrate research 1991, Vol.209 (15), p.203-209
Hauptverfasser: Zevenhuizen, Ludovicus P.T.M., Faleschini, Paolo
Format: Artikel
Sprache:eng
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Zusammenfassung:Rhizobium meliloti mutant strains have been found which, in the presence of low concentrations of NaCl, produce a galactoglucan instead of the usual succinoglycan. When grown in a mannitol-glutamic acid-salts medium, the principal products secreted by R. meliloti YE-2Sl were comparable quantities of succinoglycan repeating-units and galactoglucan. As NaCl was added progressively to the culture medium, the repeating units nearly completely disappeared and the galactoglucan was gradually replaced by a succinoglycan.
ISSN:0008-6215
1873-426X
DOI:10.1016/0008-6215(91)80157-I