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Cell suspension cultures were established from Glehnia littoralis plants belonging to two different geographic strains. When the cells were treated with yeast extract, they started to produce and excrete furanocoumarins into the culture medium; a major component, bergapten, and a minor one, xanthotoxin, were detected and identified by HPLC and GC/MS.(More)
The root elongation activity of unsaturated oligomeric uronates from alginate on carrot and rice plants was investigated. Unsaturated oligomeric uronates were prepared by digesting polymannuronate (PM) and polyguluronate (PG) with an alginate lyase purified from Pseudoalteromonas sp. strain No. 272. The root elongation activity was measured by elongation in(More)
A stable callus line that produces anthocyanins was established from callus derived from a petiole of a Glehnia littoralis seedling and subcultured in the dark. The major anthocyanin which made up about 60% of the total anthocyanins was determined as cyanidin 3-O-(6-O-(6-O-(E)-feruloyl-beta-D-glucopyranosyl) -2-O-beta-D-xylopyranosyl-beta-D-glucopyranoside)(More)
A simple and efficient method for identification of Duboisia leichhardtii F. Muell, D. myoporoides R. BR. and their interspecific hybrid was established by analyzing restriction fragment length polymorphism (RFLP) profiles using non-radioactive rice ribosomal DNA as a probe. This procedure was shown to be applicable to both fresh and dried samples, and also(More)
Hyoscyamus albus hairy roots with/without an exogenous gene (11 clones) were established by inoculation of Agrobacterium rhizogenes. All clones cultured under iron-deficient condition secreted riboflavin from the root tips into the culture medium and the productivity depended on the number and size of root tips among the clones. A decline of pH was observed(More)
The responses of anthocyanin-producing (violet) and non-producing (white) cells of Glehnia littoralis to radical generators were compared. Cell growth, anthocyanin content, phenylalanine ammonia-lyase (PAL) activity and furanocoumarin production were determined after treatment with H(2)O(2), 2,2'-azobis(2-amidinopropane) dihydrochloride (AAPH), X-ray and(More)
The effects of yeast extract on the accumulation of transcripts of phenylalanine ammonia-lyase (PAL, EC and chalcone synthase (CHS, EC, PAL and CHS enzyme activity and furanocoumarin and anthocyanin metabolites over a 48 h period were studied in anthocyanin-producing (Violet) and non-producing (White) cell suspension cultures of Glehnia(More)
Hyoscyamus albus hairy roots secrete riboflavin under Fe-deficient conditions. To determine whether this secretion was linked to an enhancement of respiration, both riboflavin secretion and the reduction of 2,3,5-triphenyltetrazolium chloride (TTC), as a measure of respiration activity, were determined in hairy roots cultured under Fe-deficient and(More)
Differentiated shoot and root cultures of Glehnia littoralis were examined for organ-specific responses to yeast extract (YE). Growth, and changes in phenylalanine ammonia-lyase (PAL, EC 4. 1. 3. 5) activity, as well as furanocoumarin and simple phenylpropanoid production were then determined. YE affected root growth positively but negatively affected the(More)
Exogenously supplied ascorbic acid (AsA) strongly induced furanocoumarin production in leaf and root cultures of GLEHNIA LITTORALIS, but not in cell suspension cultures, after 24 h of treatment. The dose dependency showed that both organ tissues responded well to AsA supplied at concentrations of 10 - 40 mM. For induction of furanocoumarin production, roots(More)