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- Title
QUANTITATIVE DETERMINATION OF TOTAL POLYPHENOLS AND FLAVONOIDS FROM INDIGENOUS SPECIES OF EPILOBIUM OF WILD ORIGIN AND 'IN VITRO' REGENERATED PLANTLETS.
- Authors
Tămaş, Mircea; Toiu, Anca; Oniga, Ilioara; Deliu, Constantin; Oltean, Bogdan; Coldea, Gheorghe
- Abstract
The aim of this study was to determine the total polyphenol and flavonoid content in six Epilobium species from the wild flora of Transylvania (E. hirsutum, E. parviflorum, E. montanum, E. palustre, E. alsinifolium, E. nutans), Chamerion angustifolium, and in vitro regenerated plantlets of E. hirsutum (Onagraceae). All samples contain high concentrations of these active principles (9.19-17.15% polyphenols and 1.9-4.3% flavonoids in the species from wild flora, and 11.11-19.35% total polyphenols in plantlets). The flavonoid content is about 25% of total polyphenols in the indigenous species, whereas in in vitro regenerated plantlets it is less then 0.01%. The absence of UV-B radiation in the neon tube light could explain lack of biosynthesis of flavonoids in the plantlets.
- Subjects
EPILOBIUM; POLYPHENOLS; FLAVONOIDS; BIOSYNTHESIS; PLANT ecology; ONAGRACEAE; ULTRAVIOLET radiation; NEON tubes; WILD plants
- Publication
Contributii Botanice, 2009, Vol 44, p119
- ISSN
0069-9616
- Publication type
Article