Abstract
The improvement of axillary shoot formation of Lawsonia inermis L. cultured in vitro depended on the iron concentration in the culture medium. Regenerated shoots were rooted on a hormone-free half-strength Murashige and Skoog medium (1/2 MS) before transfer to greenhouse conditions. Determination of lawsone in the plant material was investigated using a new HPLC method. The results showed that lawsone accumulation in vivo is restricted to the aerial part of the plant. In addition, the possibility of inducing lawsone biosynthesis in root cultures was studied. Hairy root cultures were established by a co-culture method using leaf segments of L. inermis and Agrobacterium rhizogenes NCIB 8196. Of several basal media tested, the production of lawsone (0.13% dry weight) was only observed in hairy roots tissues incubated in the dark and cultured in 1/2 MS or MS media.
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Bakkali, A.T., Jaziri, M., Foriers, A. et al. Lawsone accumulation in normal and transformed cultures of henna, Lawsonia inermis. Plant Cell, Tissue and Organ Culture 51, 83–87 (1997). https://doi.org/10.1023/A:1005926228301
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DOI: https://doi.org/10.1023/A:1005926228301