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Abstract
Ten transformed and two non-transformed root lines ofCatharanthus roseus were established. A systematic study of the growth kinetics and alkaloid content was performed over a culture cycle and showed significant differences between transformed and non-transformed cultures. Mean doubling times for transformed and normal root lines were 2.8 and 19.5 days, respectively. Alkaloid content in hairy roots was from two- to threefold higher than in the non-transformed tissues. The established transformed root lines produced a wide variety of indole alkaloids as can be observed from their complex thin layer chromatography patterns. A large quantity of serpentine was determined in two of the transformed root cultures. Alkaloid content, both quantitatively and qualitatively, has been stable in the hairy root cultures for more than 2 yr of subculturing.
Published Version
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