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A metabolomic analysis of medicinal diversity in Huang-qin (Scutellaria baicalensis Georgi) genotypes: discovery of novel compounds

  • Physiology and Biochemistry
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Abstract

In vitro manipulation of plant regeneration in the Chinese medicinal species Scutellaria baicalensis Georgi (Huang-qin) resulted in 26 chemically distinct germplasm lines. Antioxidant potential, growth rate and concentration of baicalin, baicalein, melatonin, and wogonin were the selective markers used to identify elite lines. Metabolomic analysis of a subset of the most distinct lines revealed that Huang-qin extracts contained over 2,000 compounds including 781 determined to be of putative medicinal importance as determined by a database search, as well as previously unidentified amino-derivatives of baicalin and wogonin. Huang-qin also contained a metabolite with the same net formula as hyperforin, previously thought to be unique to Hypericum perforatum L. Together these results provide new insights into the biochemical complexity of an important medicinal species and demonstrate the power of in vitro manipulation in combination with untargeted metabolomic screening for the production of new germplasm.

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Acknowledgement

The financial support of the Natural Sciences and Engineering Research Council of Canada is gratefully acknowledged.

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Authors and Affiliations

  1. Institute for Ethnobotany, National Tropical Botanical Garden, 3530 Papalina Road, Kalaheo, 96741, HI, USA

    Susan J. Murch

  2. Department of Environmental Sciences, Nova Scotia Agricultural College, Nova Scotia, London, B2N 5E3

    H. P. Vasantha Rupasinghe

  3. Phenomenome Discoveries, 204-407 Downey Rd, Saskatoon, SK, Canada, S7N 4L8

    D. Goodenowe

  4. Department of Plant Agriculture, University of Guelph, Guelph, ON, Canada, N1G 2W1

    Praveen K Saxena

Authors
  1. Susan J. Murch
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  2. H. P. Vasantha Rupasinghe
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  3. D. Goodenowe
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  4. Praveen K Saxena
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Corresponding author

Correspondence to Susan J. Murch.

Additional information

Communicated by G.C. Phillips

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Murch, S.J., Rupasinghe, H.P.V., Goodenowe, D. et al. A metabolomic analysis of medicinal diversity in Huang-qin (Scutellaria baicalensis Georgi) genotypes: discovery of novel compounds. Plant Cell Rep 23, 419–425 (2004). https://doi.org/10.1007/s00299-004-0862-3

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  • DOI: https://doi.org/10.1007/s00299-004-0862-3

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