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The anthocyanins of 130 cultivars, 13 lines and 3 wild forms of Iris ensata were analyzed by HPLC, and these plants were classified into 16 types of major anthocyanins. Among these types, 8 types such as petunidin 3RGac5G – delphinidin 3RGac5G, delphinidin 3RGac5G – petunidin 3RGac5G, cyanidin 3RGac5G – peonidin 3RGac5G, delphinidin 3RG – delphinidin 3RGac, petunidin 3RG5G – malvidin 3RG5G, malvidin...
The fading of flower color in bluish purple and reddish purple cultivars of Iris ensata and the in vitro stability of malvidin 3RGac5Gand petunidin 3RGac5G due to copigmentation with isovetixin under different pH conditions were examined. The bluish purple cultivars exhibited higher flower color stability than the reddish purple cultivars 2 days after anthesis. In the absence of isovitexin, malvidin...
The effects of glucose concentrations, different sugars and combinations of 2,4-D and kinetin on cell division and colony formation were examined in cultures of protoplasts isolated enzymatically from suspension cultures of Iris hollandica N6 medium supplemented with 1 mg/l 2,4-D, 1 mg/l kinetin, 200 mg/l casein hydrolysate, 250 mg/l proline, 0.3– 0.5 M glucose and 20 g/l agarose was suitable for...
Wide hybridization that cannot be attained through conventional sexual crosses, can now be approached by somatic hybridization. Protoplasts of I. ensata and I. germanica were fused by electrofusion. For the selection of somatic hybrids, protoplasts of I. ensata which did not form colonies in protoplast culture and protoplasts of I. germanica which had regeneration ability for only albino shoot were...
The characteristics of autoallotetraploid hybrids obtained from the cross between Iris ensata cv. Raspberry Rimmed (4X) and amphidiploids of I. laevigata × I. ensata were examined and compared with those of their parents. The color of inner and outer perianths in the autoallotetraploids were bluish purple and similar to those of the amphidiploid parent. However, the autoallotetraploids exhibited low...
In Iris germanica L., 'G1', 'Adorn' and 'Rococo', induction and proliferation of embryogenic calli were achieved by culture of leaf-base explants on Murashige and Skoog (MS) medium supplemented with 1 mg l−1 2,4-D, 1 mg l−1 kinetin, 200 mg l−1 casein hydrolysate, 250 mg l−1 proline, 30 g l−1 sucrose and 2.5 g l−1 gellan gum. Among these cultivars, however, only in 'G1' could a suspension culture be...
The in vitro identification of copigmentation was carried out using anthocyanins, such as malvidin 3RGac5G, petunidin 3RGac5G and delphinidin 3RGac5G and the flavone isovitexin. These are major pigments of Iris ensata. These anthocyanins brought about copigmentation, i.e., the bathochromic shift (bluing effect) of visible λ max due to increased concentrations of isovitexin, and 32 to 35 nm were estimated...
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