Sökning: id:"swepub:oai:gup.ub.gu.se/234001" >
Replenishment and m...
Replenishment and mobilization of intracellular nitrogen pools decouples wine yeast nitrogen uptake from growth.
-
Gutiérrez, Alicia (författare)
-
Sancho, Marta (författare)
-
Beltran, Gemma (författare)
-
visa fler...
-
Guillamon, José Manuel (författare)
-
- Warringer, Jonas, 1973 (författare)
- Gothenburg University,Göteborgs universitet,Linnécentrum för marin evolutionsbiologi (CEMEB),Institutionen för kemi och molekylärbiologi,Linnaeus Centre for Marine Evolutionary Biology (CEMEB),Department of Chemistry and Molecular Biology
-
visa färre...
-
(creator_code:org_t)
- 2016-01-12
- 2016
- Engelska.
-
Ingår i: Applied microbiology and biotechnology. - : Springer Science and Business Media LLC. - 1432-0614 .- 0175-7598. ; 100:7, s. 3255-65
- Relaterad länk:
-
https://gup.ub.gu.se...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- LANTBRUKSVETENSKAPER -- Bioteknologi med applikationer på växter och djur -- Genetik och förädling inom lantbruksvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agricultural Biotechnology -- Genetics and Breeding in Agricultural Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
Nyckelord
- Wine
- yeast
- nitrogen
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas