The chemicals, standards and extraction protocol used as the same as given in Loupit et al. (2022) The analysis protocol was the same as described by Loupit et al. (2020) with some modifications and a different column (Agilent ZORBAX RRHD SB-C18 (2.1 mm x 100 mm, 1.8 μm)).
Loupit G, Prigent S, Franc C, De Revel G, Richard T, Cookson SJ, Fonayet JV. 2020. Polyphenol Profiles of Just Pruned Grapevine Canes from Wild Vitis Accessions and Vitis vinifera Cultivars. Journal of Agricultural and Food Chemistry 68, 13397-13407.
Loupit G, Prigent S, Prodhomme D, Spilmont AS, Hilbert G, Franc C, de Revel G, Ollat N, Valls Fonayet J, Cookson SJ. 2022. Identifying early metabolite markers of successful graft union formation in grapevine Horticultural Research 9, uhab070.