Flavonoid Production in Transformed Scutellaria baicalensis Roots and Ways of Its Regulation

Flavonoid Production in Transformed Scutellaria baicalensis Roots and Ways of Its Regulation A root culture of skullcap (Scutellaria baicalensisGeorgi) transformed with pRi T-DNA was initiated by the inoculation of sterile seedlings with Agrobacterium rhizogenes(wild-type strain A-4). The flavonoid concentration in cultured roots comprised 5% of the root dry weight and was maintained essentially constant during a subculture. For four weeks of culturing, the weight of the roots increased by 20–30 times; when the roots were cultured for a longer time and with periodic enrichment of the nutrient medium, their weight increased 50-fold. Skullcap roots were shown to synthesize flavones characteristic of intact roots (wogonin, baicalein, and baicalin). The addition of 0.01–1 mM L-phenylalanine (a precursor of flavonoids) to the nutrient medium affected neither root growth, nor their flavonoid concentration. Root elicitation with 100 μM methyl jasmonate for 72 h increased the flavonoid content per flask and per root dry weight by 1.8 and 2.3 times, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Flavonoid Production in Transformed Scutellaria baicalensis Roots and Ways of Its Regulation

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Kluwer Academic Publishers-Plenum Publishers
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Life Sciences; Plant Sciences
Publisher site
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