Wednesday, December 18, 2024 - Thesis defense - Antoine Laporte

Antoine LAPORTE

Thesis presented to obtain the degree of Doctor of the University of Bordeaux - Specialization : Bioinformatics

Team Metabolism (META)

Wednesday, December 18, 2024 - 9:am - Amphithéâtre Colette & Josy Bové - Campus INRAE Villenave d'Ornon
 (access & map)

Abstract : Grapevines are being affected by climate change in France, and Bourgogne is no exception with its red variety, Pinot Noir. A study conducted over two consecutive years, characterized by high temperatures and excellent sanitary conditions, followed the development of this grape variety across five plots. Factors such as weather conditions, sun exposure, and the position of the berries on the cluster were analyzed. The results show that the vintage plays a key role in the berry composition, particularly at the beginning of development and in acidity levels, influenced by water stress. Other factors, such as rootstocks and the specific plots, also impact maturation and polyphenols which are compounds linked to the wine's sensory qualities. Finally, a predictive model showed a stronger impact of terroir in 2022. These findings pave the way for more precise modeling of Pinot Noir metabolism in response to climate fluctuations.

Direction : M. Sylvain Prigent

Jury members :

- Rapporteuse -  Mme Marielle Adrian (IUVV Dijon)
- Rapporteur - M. Charles Romieu (INRAE Montpellier)
- Examinatrice -  Mme Anne Goelzer (INRAE Jouy-en-Josas)
- Examinateur - M. Éric Gomès (INRAE Bordeaux)