NDLI: Flavones in genetically transformed Scutellaria baicalensis roots and induction of their synthesis by elicitation with methyl jasmonate

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Flavones in genetically transformed Scutellaria baicalensis roots and induction of their synthesis by elicitation with methyl jasmonate

Content Provider	Springer Nature Link
Author	Kuzovkina, I. N. Guseva, A. V. Kovács, D. Szöke, É. Vdovitchenko, M. Yu.
Copyright Year	2005
Abstract	The composition and content of flavones were estimated in pRi T-DNA-transformed skullcap (Scutellaria baicalensis Georgi) roots obtained by the inoculation of axenically grown seedlings with a wild A4 strain of the soil bacterium Agrobacterium rhizogenes. It was elucidated by analytical and preparative HPLC of phenolic compounds in the extracts from the pRi T-DNA-transformed roots and also by ultraviolet spectroscopy and $^{1}$H and $^{13}$C NMR that cultured skullcap roots contained similar basic flavones as intact roots of this plant species, i.e., baicalein and wogonin and corresponding glucuronides, baicalin and wogonoside. The content of these flavones in cultured roots was threefold lower than in the roots of intact five-year-old plants. When skullcap roots were cultured on B5 or Murashige and Skoog medium, the ratios between major flavones changed but their total content remained unchanged. The treatment of three-week-old cultured roots with methyl ether of jasmonic acid (MeJa) doubled the total concentration of major flavones in roots; the content of aglycons, baicalein and wogonin, increased to a greater degree, e.g., by 2.3 and 3.3 times, respectively. The induction of flavone production by elicitors indicates that flavones behave as phytoanticipins because major flavones of skullcap manifest a distinct antimicrobial activity. The results of the short-term treatment of skullcap roots with MeJa show that stress biotic factors can considerably increase the content of physiologically active flavones.
Starting Page	77
Ending Page	82
Page Count	6
File Format	PDF
ISSN	10214437
Journal	Russian Journal of Plant Physiology
Volume Number	52
Issue Number	1
e-ISSN	16083407
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2005-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Scutellaria baicalensis hairy root culture elicitation flavones baicalin wogonoside baicalein wogonin Plant Sciences Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Plant Science

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