The constituents ofTaraxacum hallaisanensis roots

Yang, Deuk Suk; Whang, Wan Kyunn; Kim, Il Hyuk

doi:10.1007/bf02986020

Cited by 11 publications

(2 citation statements)

References 32 publications

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“…Plants of the genus Taraxacum have long been used in herbal medicine for their choleretic, diuretic and antiinflammatory properties (Yang et al 1996). Dried Taraxacum leaves and roots are available today as herbal teas, and the powdered root is sold in capsule form.…”

Section: Introductionmentioning

confidence: 99%

Agrobacterium rhizogenes -mediated transformation of Taraxacum platycarpum and changes of morphological characters

et al. 2004

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Transformed hairy roots were efficiently induced from seedlings of Taraxacum platycarpum by infection with Agrobacterium rhizogenes 15834. Root explants produced transformed roots at a higher frequency (76.5+/-3.5%) as compared to stem (32.7+/-4.8%) or cotyledon (16.2+/-5.7%). Hairy roots exhibited active elongation with high branching of roots on growth regulator-free medium. The competence of plant regeneration from non-transformed adventitious roots and transformed hairy roots was compared. The frequency of adventitious shoot formation from transformed roots was much higher (88.5+/-9.8%) than that of non-transformed roots (31.7 +/-9.5%) on hormone-free medium. Rooting of hairy root-derived adventitious shoots occurred easily on growth regulator-free medium but no rooting was observed on non-transformed shoots. The stable introduction of rol genes into Taraxacum plants was confirmed by PCR and Southern hybridization. Transgenic plantlets showed considerable differences in their morphology when compared to the corresponding wild-type (non-transgenic) plants. Plantlets formed from transformed roots had numerous fibrous roots with abundant lateral branches instead of the thickened taproots in non-transformed plants. The differences observed may reflect the modification of morphological root characters by introduction of rol genes.

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Section: Introductionmentioning

confidence: 99%

Agrobacterium rhizogenes -mediated transformation of Taraxacum platycarpum and changes of morphological characters

et al. 2004

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“…This genus has long been used as medicinal herbs to treat arthritic and rheumatic complaints (Bisset et al, 1994), diabetes mellitus (Hernandez-Galicia et al, 2002), hepatitis (Leu et al, 2005) and some choleretic, diuretic, and anti-inflammatory diseases (Sweeney et al, 2005;Yang et al, 1996). Apart from being used for therapeutic purposes, dandelion inflorescences, leaves and roots are processed into different healthy food products.…”

Section: Introductionmentioning

confidence: 99%

Establishment of Cell Suspension Cultures and Plant Regeneration in White Dandelion (Taraxacum coreanum NAKAI.)

Sun¹,

Kim²,

Hong³

2011

Korean Journal of Plant Resources

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-In this study, we established a novel somatic embryogenesis and plant regeneration system through cell suspension culture of white dandelion (Taraxacum coreanum NAKAI.). Embryogenic calli could be initiated from leaf and root explants of sterile seedlings on solid Murashige and Skoog (MS) medium supplemented with 1.0 mg/L 2,4-dichlorophenoxyacetic acid (2,4-D) after 3-week cultures. To proliferate embryogenic calli rapidly, cell suspension culture was performed with transferred to liquid MS medium with various combinations of plant growth regulators (PGRs) including 2,4-D, α-naphthalene acetic acid (NAA), indole-3-acetic acid (IAA), N 6 -benzylamino purine (BAP), thidiazuron (TDZ), and kinetin. During suspension cultures, embryogenic calli not only greatly proliferated, but shoot organogenesis also simultaneously occurred from the surface of somatic embryos. Among them, TDZ at lower concentration, 0.1 mg/L produced the highest efficiency of somatic embryo formation and shoot organogenesis. Rooting of embryogenic calli with adventitious shoots was done on solid MS medium containing 0.1 mg/L NAA and 0.3% activated carbon. Nearly 80% of embryogenic calli with shoot organogenesis could be rooted normal. Well-rooted plantlets were transferred into pots under a greenhouse condition, and plants derived from this system appeared phenotypically normal.

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Sesquiterpenoids from Taraxacum serotinum

Michalska

Kisiel

2009

Biochemical Systematics and Ecology

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The constituents ofTaraxacum hallaisanensis roots

Cited by 11 publications

References 32 publications

Agrobacterium rhizogenes -mediated transformation of Taraxacum platycarpum and changes of morphological characters

Agrobacterium rhizogenes -mediated transformation of Taraxacum platycarpum and changes of morphological characters

Establishment of Cell Suspension Cultures and Plant Regeneration in White Dandelion (Taraxacum coreanum NAKAI.)

Sesquiterpenoids from Taraxacum serotinum

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