Biologia plantarum 53:631-636, 2009 | DOI: 10.1007/s10535-009-0115-y
Overexpression of the γ-TMT gene in Codonopsis lanceolata
- 1 Bioherb Research Institute, Kangwon National University, Chunchon, South Korea
- 2 Department of Applied Life Science, Konkuk University, Seoul, South Korea
- 3 Department of Herbal Medicine Resource, Kangwon National University, Samcheok, South Korea
A cDNA-encoding γ-tocopherol methyltransferase (γ-TMT) from Arabidopsis thaliana was overexpressed in deoduck (Codonopsis lanceolata L.) to improve the tocopherol composition. Deoduck (T2) containing the γ-TMT transgene was produced by Agrobacterium-mediated transformation. Transgene expression was confirmed by polymerase chain reaction and RNA gel blot analysis. The transgenic plants produced more leaves than control plants. In addition, the transgenic plants showed higher levels of the CSOD, CTRX, CAPX, CNADP +-IDCH, and CSO transcripts and higher SOD-like activity compared with the control plants.
Keywords: antioxidant metabolism; CSOD; deoduck; SOD-like activity
Subjects: Codonopsis lanceolata; polymerase chain reaction (PCR); tocopherol; transgenic plants
Received: April 6, 2008; Accepted: August 15, 2008; Published: December 1, 2009 Show citation
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