Photocontrol of anthocyanin formation in turnip seedlings

Photocontrol of Anthocyanin Synthesis

“…Phytochrome participation in light-dependent anthocyanin synthesis has been shown for all the four species used (1,12,17,18,24). The peak of action for anthocyanin production under continuous irradiation is in the FR region for cabbage (17), mustard (17,27), and turnip (13,35), and in the blue for tomato (unpublished results). Light treatments were given in growth chambers (Percival E-57) equipped with various combination of lamps and filters which have been described previously (17,21).…”

“…Cabbage seedlings can synthesize considerable amounts of anthocyanins in darkness; the others do not (1,12,17,18,24,27,40). Phytochrome participation in light-dependent anthocyanin synthesis has been shown for all the four species used (1,12,17,18,24). The peak of action for anthocyanin production under continuous irradiation is in the FR region for cabbage (17), mustard (17,27), and turnip (13,35), and in the blue for tomato (unpublished results).…”

“…One is the low energy, R -FR' reversible phytochrome system (1, 8,12,15,17,18,28,40,44) and the other is the high energy reaction, also called high irradiance reaction system of plant photomorphogenesis (4,9,10,14,15,28,44 (4,14,28,29,37,41,44 germination (11, 14, 22, 23, 42, 45). …”

“…One is the low energy, R -FR' reversible phytochrome system (1,8,12,15,17,18,28,40,44) and the other is the high energy reaction, also called high irradiance reaction system of plant photomorphogenesis (4,9,10,14,15,28,44). The nature of the photoreceptor(s) for the HIR responses is a debated question.…”

“…For this study we used seedlings of cabbage, mustard, tomato, and turnip. Cabbage seedlings can synthesize considerable amounts of anthocyanins in darkness; the others do not (1,12,17,18,24,27,40). Phytochrome participation in light-dependent anthocyanin synthesis has been shown for all the four species used (1,12,17,18,24).…”