Xanthone production in calli and suspended cells of Hypericum perforatum

被引:34
作者
Dias, ACP
Seabra, RM
Andrade, PB
Ferreres, F
Ferreira, MF
机构
[1] Univ Minho, Lab Biol Vegetal, Dept Biol, P-4709 Braga, Portugal
[2] Univ Porto, CEQUP, Lab Farmacognosia, Fac Farm, P-4050 Porto, Portugal
[3] CSIC, CEBAS, Lab Fitoquim, Dept Ciencia & Tecnol Alimentos, Murcia 30080, Spain
关键词
calli; cell suspensions; Hypericaceae; Hypericum perforatum; phytohormones; xanthones;
D O I
10.1078/0176-1617-00195
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Calli and suspended cells of Hypericum perforatum accumulated xanthones with the 1,3,6,7 and 1,3,5,6-oxygenation pattern. Xanthone accumulation was highly influenced by hormone supplementation. Calli grown with 4.5 mu mol/L 2,4-D + 2.3 mu mol/L KIN had the highest specific xanthone production observed (0.73% DW). The use of BA instead of KIN reduced xanthone accumulation, resulting in the lowest production achieved (0.24 % DW). This effect was attenuated when both hormones were present. Calli displayed a positive linear relationship between NAA concentration, in the range of 4.5-22.5 mu mol/L, and total xanthone accumulation and the xanthone 1,3,6,7/1,3,5,6 ratio. However, the production of 1,3,5,6 xanthones was similar in ail NAA concentrations studied.
引用
收藏
页码:821 / 827
页数:7
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