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Yeast. 2012 Nov;29(11):487-94. doi: 10.1002/yea.2928. Epub 2012 Oct 14.

Nitrogen starvation induces expression of Lg-FLO1 and flocculation in bottom-fermenting yeast.

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1
Research Laboratories for Brewing, Asahi Breweries Ltd, Ibaraki, Japan. tomoo.ogata@asahibeer.co.jp

Abstract

When exponentially growing cells of bottom-fermenting yeast were starved for nitrogen or were grown on proline (a non-preferred nitrogen source), flocculation was induced. This flocculation was not induced by starvation for either carbon or amino acids. Expression of Lg-FLO1, which is required for flocculation of bottom-fermenting yeast, was also found to be induced by starvation for nitrogen. This suggests that the flocculation of bottom-fermenting yeast is under the control of a nitrogen catabolite repression (NCR)-like mechanism.

PMID:
23065862
DOI:
10.1002/yea.2928
[Indexed for MEDLINE]
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