Repositori institucional URV
| URV's Author/s: | SANCHO FORNER, MARTA; Alicia Gutiérrez; BELTRAN CASELLAS, GEMMA; José Manuel Guillamon; Jonas Warringer |
| Author, as appears in the article.: | Marta Sancho; Alicia Gutiérrez; Gemma Beltran; José Manuel Guillamon; Jonas Warringer |
| Author identifier: | n/a; n/a; 0000-0002-7071-205X; n/a; 0000-0001-6144-2740 |
| Journal publication year: | 2016 |
| Publication Type: | Article |
| ISSN: | 0175-7598 |
| Abstract: | Wine yeast capacity to take up nitrogen from the environment and catabolize it to support population growth, fermentation, and aroma production is critical to wine production. Under nitrogen restriction, yeast nitrogen uptake is believed to be intimately coupled to reproduction with nitrogen catabolite repression (NCR) suggested mediating this link. We provide a time- and strain-resolved view of nitrogen uptake, population growth, and NCR activity in wine yeasts. Nitrogen uptake was found to be decoupled from growth due to early assimilated nitrogen being used to replenish intracellular nitrogen pools rather than being channeled directly into reproduction. Internally accumulated nitrogen was later mobilized to support substantial population expansion after external nitrogen was depleted. On good nitrogen sources, the decoupling between nitrogen uptake and growth correlated well with relaxation of NCR repression, raising the potential that the latter may be triggered by intracellular build-up of nitrogen. No link between NCR activity and nitrogen assimilation or growth on poor nitrogen sources was found. The decoupling between nitrogen uptake and growth and its influence on NCR activity is of relevance for both wine production and our general understanding of nitrogen use. |
| Article's DOI: | 10.1007/s00253-015-7273-y |
| Link to the original source: | https://link.springer.com/article/10.1007/s00253-015-7273-y |
| Papper version: | info:eu-repo/semantics/acceptedVersion |
| licence for use: | https://creativecommons.org/licenses/by/3.0/es/ |
| Department: | Bioquímica i Biotecnologia |
| Research group: | Biotecnologia Enològica |
| Licence document URL: | https://repositori.urv.cat/ca/proteccio-de-dades/ |
| Thematic Areas: | Oenology |
| Keywords: | growth Wine YEAST |
| Entity: | Universitat Rovira i Virgili |
| Record's date: | 2016-04-14 |
| First page: | 3255 |
| Last page: | 3265 |
| Journal volume: | 100 |
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| DocumentPrincipal | DocumentPrincipal | application/pdf |
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