Carnosic acid in green callus and regenerated shoots of Rosmarinus officinalis

@article{Caruso2000CarnosicAI,
  title={Carnosic acid in green callus and regenerated shoots of Rosmarinus officinalis},
  author={John L. Caruso and J. Callahan and Claudia Dechant and Koka Jayasimhulu and G. D. Winget},
  journal={Plant Cell Reports},
  year={2000},
  volume={19},
  pages={500-503}
}
 Rooted regenerated shoots obtained from leaf and nodal segments of Rosmarinus officinalis were grown on a basal nutrient medium for 9 weeks. The regenerants were shown by means of HPLC and mass spectrometry to contain carnosic acid, a diterpenoid with antioxidant and medicinal properties. Five-week-old nodular green callus also contained carnosic acid, whereas non-green, undifferentiated callus maintained in the dark did not.