To obtain a cell line of Vitis vinifera producing mainly malvidin-3-O-beta-glucoside, three methods were studied: the initiation of new cell cultures from different varieties, the modification of phytohormones in the culture media of a high anthocyanin-producing cell line, and the selection by small-aggregate cloning of new cell lines from this high producing strain. The latter technique gave a cell line accumulating a malvidin-3-O-beta-glucoside proportion of 63%.