Fiche publication
Date publication
mars 2008
Auteurs
Membres identifiés du Cancéropôle Est :
Mme SCHAEFFER-REISS Christine
,
Dr VAN DORSSELAER Alain
Tous les auteurs :
Cilindre C, Jegou S, Hovasse A, Schaeffer C, Castro AJ, Clement C, Van Dorsselaer A, Jeandet P, Marchal R
Lien Pubmed
Résumé
The presence of the fungal pathogen, Botrytis cinerea, in the vineyard causes reductions in both quality and quantity of grapes and wine. Because proteins are involved in the foam stabilization of sparkling wines, we have undertaken, for the first time, a thorough proteomic analysis of two champagne base wines prepared with either healthy or botrytized Chardonnay grapes, using two-dimensional electrophoresis (2DE) coupled with immunodetection and tandem mass spectrometry. Most of the identified proteins were from grape origin: invertase and pathogenesis-related (PR) proteins. The disappearance of numerous grape proteins was observed in the botrytized wine, suggesting that they were probably degraded or even repressed or the result of a differential expression of grape proteins upon fungal infection. On the other hand, two pectinolytic enzymes secreted by B. cinerea were found in the botrytized wine.
Référence
J Proteome Res. 2008 Mar;7(3):1199-208
