Effect of zinc deficiency on betacyanin production in a cell suspension culture of table beet (Beta vulgaris L.).

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The effect of microelements in the Linsmaier-Skoog (LS) medium on betacyanin production was investigated in suspension cultures of table beet (Beta vulgaris L.). Removing zinc from the medium resulted in a high betacyanin content of the cells, the betacyanin content of the cells decreasing with increasing zinc concentration in the medium. The betacyanin content of cells cultured in the medium without zinc was twice as high as that in the medium containing 0.03 mM of zinc. In the revised LS medium without zinc, the maximum betacyanin yield was obtained of 590 mg/l from a 21-day culture.