Summary
The effects of Tween 20 as permeabilizing agent on tropane alkaloids fromDatura innoxia Mill. hairy root cultures have been studied. The kinetics of the alkaloid release is detailed and shows three different stages: an initial rapid increase of the alkaloid level within the roots and in the culture medium, followed by a slower but higher increase of the alkaloid concentration in the medium. During this phase, the alkaloid concentration within the roots returned to a lower value. Finally, after a longer time, the quantity of hyoscyamine in the medium decreased significantly with a variable rate. According to the total alkaloid content per flask determinations under different conditions, it is clearly demonstrated that Tween treatment permeabilized the roots, but also acted as an inducer.
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Abbreviations
- ACM:
-
Alkaloid concentration in the culture medium
- ACR:
-
Alkaloid concentration within the roots
- ACPF:
-
Alkaloid concentration per flask
- DW:
-
Dry weight
- HPLC:
-
High pressure liquid chromatopranhv
- UV:
-
Ultra violet
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Boitel-Conti, M., Gontier, E., Laberche, JC. et al. Inducer effect of Tween 20 permeabilization treatment used for release of stored tropane alkaloids inDatura innoxia Mill. hairy root cultures. Plant Cell Reports 16, 241–244 (1996). https://doi.org/10.1007/BF01890876
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DOI: https://doi.org/10.1007/BF01890876