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Analysis and characteristics of coronaridine, an alkaloid found in Catharanthus roseus
Hiroaki Kisaka1, Sachise Karakawa1, Tetsuya Miwa1
1Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., 1-1, Suzuki-cho, Kawasaki-ku, Kawasaki, Kanagawa 210-8681, Japan.
Abstract:
Coronaridine, a monoterpenoid indole alkaloid, is present in Tabernanthe iboga and the related species Tabernaemontana divaricata. Recent exhaustive analysis revealed its presence in Catharanthus roseus, though specific details remain unknown. We conducted a detailed analysis of coronaridine in C. roseus, detecting it in seedlings post-germination up to 8 weeks after sowing, with peak abundance at 3-4 weeks. Gradual decrease occurred from the flowering stage, and it was absent during seed formation. The accumulation varied dramatically with the plant's growth phase. LC-MS/MS analysis confirmed (-) coronaridine, consistent with T. iboga. Additionally, cultivating at 35°C increased coronaridine accumulation over 10-fold. These findings hold potential for enhancing the stable production of iboga alkaloids for pharmaceutical use.
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