Sequential use of ammonium and leucine as nitrogen sources during growth of Geotrichum candidum on a glucose based medium

• Lydia Adour ^[1] ; Florence Bude ^[2] ; Abdeltif Amrane ^[3]
  1. [1] Université Mouloud Mammeri Laboratoire de Chimie Appliquée et de Génie chimique
  2. [2] Université de Rennes Département Chimie, IUT de Rennes
  3. [3] Université de Rennes Ecole Nationale Supérieure de Chimie de Rennes

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• Localización: Electronic Journal of Biotechnology, ISSN-e 0717-3458, Vol. 13, Nº. 1, 2010, págs. 13-14
• Idioma: inglés
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  • Geotrichum candidum growth on ammonium and leucine as nitrogen sources and glucose as a carbon source was examined. A clear preference of G. candidum for ammonium over leucine as a nitrogen source was shown. Indeed, ammonium was completely exhausted at the end of exponential growth after less than 35 hrs of culture; in contrast only 5% of leucine was concomitantly assimilated. Growth continued at slower rates on glucose and leucine as carbon and nitrogen sources respectively, and at the end of culture (185 hrs), leucine was completely exhausted.