Effet de la synthèse d'acide 2 céto-gluconique sur la production d'exopolysaccharides par une souche de Rhizobium meliloti

Autor:	B. Courtois, J. P. Hornez, J. C. Derieux
Rok vydání:	1979
Předmět:	biology Immunology food and beverages Fructose General Medicine biology.organism_classification Applied Microbiology and Biotechnology Microbiology chemistry.chemical_compound chemistry Botany Genetics Rhizobium Molecular Biology
Zdroj:	Canadian Journal of Microbiology. 25:1191-1196
ISSN:	1480-3275 0008-4166
DOI:	10.1139/m79-185
Popis:	Two categories of carbon substrates are defined for Rhizobium meliloti: the first favours the synthesis of exopolysaccharides (fructose belongs to this category) while the other is not suitable (glucose belongs to this category).With fructose, resting cells synthesize polysaccharides during more than 100 h and this synthesis is at its best in aerobic conditions at 30 °C. With glucose, 2-ketogluconic acid accumulates and rapidly stops the synthesis. The method used to stop this acidification allows with glucose a synthesis which can be compared to the one obtained with fructose.
Databáze:	OpenAIRE
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