Influence of micro-environment on yeast population dynamics - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Ecological Engineering and Environment Protection Année : 2019

Influence of micro-environment on yeast population dynamics

Jean-Yves Trosset
  • Fonction : Auteur
  • PersonId : 1061151
Sami Tliba
Ali El Ati
  • Fonction : Auteur
  • PersonId : 1061152
  • IdHAL : ali-el-ati
Estelle Mogensen
  • Fonction : Auteur
  • PersonId : 1061154
Ouerdia Arkoun
  • Fonction : Auteur
  • PersonId : 1061157
Sette Diop
Rodrigo Ledesma-Amaro
  • Fonction : Auteur
  • PersonId : 1061158

Résumé

Abundance or scarcity of external nutrients is a metabolic trigger, especially for highly proliferative cells such as bacteria, yeasts, parasites or tumors. In presence of oxygen cells usually adopt efficient metabolism in order to maximize energy production yield in poor diet. If nutrient resource increases, a metabolic shift from efficient metabolism (respiration) to inefficient metabolism (fermentation) is reflecting a minimal cost principle of living systems to optimize fitness. This is known as the Crabtree/Warburg effect. Identifying a model that describes the population dynamics of cells and the input growth condition are the goals of this study. Proof of principle has been constructed using a battery of growth experiments on Crabtree-positive yeasts–Saccharomyces under various conditions of glucose in aerobic and micro-aerobic conditions. General cell growth model estimating metabolic shift has been constructed based on an Auto Regressive approach.
Fichier principal
Vignette du fichier
microrganisms_fileediteur_boussaada.pdf (1.1 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02413956 , version 1 (07-07-2020)

Licence

Paternité

Identifiants

Citer

Jean-Yves Trosset, Sami Tliba, Ali El Ati, Hela Friha, Estelle Mogensen, et al.. Influence of micro-environment on yeast population dynamics. Ecological Engineering and Environment Protection, 2019, 2019 (2), pp.5-13. ⟨10.32006/eeep.2019.2.0513⟩. ⟨hal-02413956⟩
212 Consultations
105 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More