Journal of Plant Biology

, Volume 48, Issue 4, pp 380–386 | Cite as

Growth characteristics and catalpol production in chinese foxglove (Rehmannia glutinosa Liboschitz) hairy roots transformed withAgrobacterium rhizogenes ATCC15834

  • Sung Jin Hwang


Hairy root clones ofRehmannia glutinosa were established via transformation withAgrobacterium rhizogenes ATCC15834. To optimize the culturing conditions for both root growth and catalpol production, effects of various combinations of seven basal media, pH, and carbon sources were examined under darkness. The fastest root growth was obtained in an SH medium containing 4% sucrose (pH 5.8); the highest catalpol content (0.54% of dry weight) was achieved in a WPM medium supplemented with 4% sucrose (pH 5.8). Effects of plant growth regulators and chitosan were also investigated. IAA at 2 mg L-1 significantly increased root lengths and the frequency of lateral roots. Chitosan (50 mg L-1) and CA3 (0.5 mg L-1) induced catalpol production, with contents calculated at 0.7% dry weight and 0.65% dry weight, respectively.


catalpol chitosan hairy root cultures PGRs Rehmannia glutinosa 


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Copyright information

© The Botanical Society of Korea 2005

Authors and Affiliations

  1. 1.Department of Oriental Medicine MaterialsDongshin UniversityNajuKorea

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