| Autor: |
Habibi P; Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Curitiba, Paraná Brazil ; Embrapa Genetic Resources and Biotechnology, Brasilia, DF Brazil., de Sa MF; Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Curitiba, Paraná Brazil ; Embrapa Genetic Resources and Biotechnology, Brasilia, DF Brazil ; Catholic University of Brasília, Brasília, DF Brazil., da Silva AL; Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Curitiba, Paraná Brazil., Makhzoum A; Department of Biology and the Biotron, The University of Western Ontario, London, ON N6A 5B7 Canada., da Luz Costa J; Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Curitiba, Paraná Brazil., Borghetti IA; Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Curitiba, Paraná Brazil., Soccol CR; Embrapa Genetic Resources and Biotechnology, Brasilia, DF Brazil. |
| Abstrakt: |
Origanum vulgare L is commonly known as a wild marjoram and winter sweet which has been used in the traditional medicine due to its therapeutic effects as stimulant, anticancer, antioxidant, antibacterial, anti-inflammatory and many other diseases. A reliable gene transfer system via Agrobacterium rhizogenes and plant regeneration via hairy roots was established in O. vulgare for the first time. The frequency of induced hairy roots was different by modification of the co-cultivation medium elements after infection by Agrobacterium rhizogenes strains K599 and ATCC15834. High transformation frequency (91.3 %) was achieved by co-cultivation of explants with A. rhizogenes on modified (MS) medium. The frequency of calli induction with an 81.5 % was achieved from hairy roots on MS medium with 0.25 mg/L(-1) 2,4-D. For shoot induction, initiated calli was transferred into a medium containing various concentrations of BA (0.1, 0.25, 0.5, 0.75 and 1 mg/L(-1)). The frequency of shoot generation (85.18 %) was achieved in medium fortified with 0.25 mg/L(-1) of BA. Shoots were placed on MS medium with 0.25 mg/l IBA for root induction. Roots appeared and induction rate was achieved after 15 days. |
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