Replacement of potassium ions by ammonium ions in potassium-limited chemostat cultures of Candida utilis NCYC 321

Autor: Paul T.D. Herman, Oense M. Neijssel, Ed T. Buurman, M. Joost Teixeira de Mattos
Rok vydání: 1993
Předmět:
Zdroj: FEMS Microbiology Letters. 107:1-4
ISSN: 1574-6968
0378-1097
DOI: 10.1111/j.1574-6968.1993.tb05994.x
Popis: Potassium-limited cultures of Candida utilis grown with ammonium chloride as the sole nitrogen source attained a higher dry weight than similar cultures grown with sodium nitrate as the sole nitrogen source. This increase depended on the extracellular ammonia concentration and was not due to accumulation of storage polymers. We conclude that in this yeast ammonium ions can fulfill to some extent the physiological role of potassium ions and that the intracellular concentration of ammonium ions is predominantly determined by the ammonia concentration in the culture medium.
Databáze: OpenAIRE