Planta Med 2009; 75(4): 387-391
DOI: 10.1055/s-0028-1112217
Biochemistry, Molecular Biology and Biotechnology
Original Paper
© Georg Thieme Verlag KG Stuttgart · New York

Menthol and Geraniol Biotransformation and Glycosylation Capacity of Levisticum officinale Hairy Roots

Inês S. Nunes1 , Jorge M. S. Faria1 , A. Cristina Figueiredo1 , Luis G. Pedro1 , Helena Trindade1 , José G. Barroso1
  • 1Universidade de Lisboa, Faculdade de Ciências de Lisboa, Departamento de Biologia Vegetal, Instituto de Biotecnologia e Bioengenharia, Centro de Biotecnologia Vegetal, Lisbon, Portugal
Dedicated to Prof. Johannes J. C. Scheffer on the occasion of his retirement
Further Information

Publication History

Received: June 30, 2008 Revised: October 30, 2008

Accepted: November 17, 2008

Publication Date:
20 January 2009 (online)

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Abstract

The biotransformation capacity of Levisticum officinale W.D.J. Koch hairy root cultures was studied by evaluating the effect of the addition of 25 mg/L menthol or geraniol on morphology, growth, and volatiles production. L. officinale hairy root cultures were maintained for 7 weeks in SH medium, in darkness at 24 °C and 80 r. p. m., and the substrates were added 15 days after inoculation. Growth was evaluated by measuring fresh and dry weight and by using the dissimilation method. Volatiles composition was analyzed by GC and GC-MS. Hairy roots morphology and growth were not influenced by substrate addition. No new volatiles were detected after menthol addition and, as was also the case with the control cultures, volatiles of these hairy roots were dominated by (Z)-falcarinol (1 – 45 %), n-octanal (3 – 8 %), palmitic acid (3 – 10 %), and (Z)-ligustilide (2 – 9 %). The addition of geraniol induced the production of six new volatiles: nerol/citronellol/neral (traces - 15 %), α-terpineol (0.2 – 3 %), linalool (0.1 – 1.2 %), and geranyl acetate (traces – 2 %). The relative amounts of the substrates and some of their biotransformation products decreased during the course of the experiment. Following the addition of β-glycosidase to the remaining distillation water, analysis of the extracted volatiles showed that lovage hairy roots were able to convert both substrates and their biotransformation products into glycosidic forms.

Abbreviations

GC:gas chromatography

GC-MS:gas chromatography-mass spectrometry

SH:Schenk and Hildebrandt (1972) culture medium

References

Prof. Ana Cristina Figueiredo

Universidade de Lisboa

Faculdade de Ciências de Lisboa

Departamento de Biologia Vegetal

Instituto de Biotecnologia e Bioengenharia

Centro de Biotecnologia Vegetal, C2

Campo Grande

1749–016 Lisbon

Portugal

Phone: +35-12-1750-0257

Fax: +35-12-1750-0048

Email: acsf@fc.ul.pt