Conclusion
The pollen ofCannabis sativa L. was rich in cannabinoids and particularly in THC and THCA, the latter being able to be transformed into physiologically active THC. Climatic factors and particularly temperature played an important role, since the THC content at 24° C 16 h was 30 times as great as at 22° C 12° C 16h.
Determinations of the phenol compounds in the corresponding flowering heads had not been completed, but those that had been finished showed that the optimum content was given by plants cultivated at 24° C 16 h.
The highest concentration of alkaloid type substances was also given under this climatic regime: these substances were different from choline and trigonelline and studies were under way to identify them.
With regard to the flavonoids that were examined by two-dimensional paper chromatography, two principal spots were detected corresponding to two glycosides. After hydrochloric acid hydrolysis two different genins were identified as apigenin and luteolin respectively. These flavone glycosides were also found in the leaves together with several others, and a further study is being made of them the results of which will be published shortly.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature Cited
Aguar, O. 24th May, 1971. Examination ofCannabis extracts for alkaloidal components. United Nations Document ST/SOA/SER. S/28.
Bercht, C. A. L. and Salemink, C. A. 22nd August, 1969. Recherches sur les principes de base duCannabis. United Nations Document ST/SOA/SER. S/21.
Chouard, P. and Tran-Thanh Van M. 1964. Vernalisation sans réfrigération par les facteurs trophiques de la vigueur, grande luminosoté et niveau élevé de la nutrition minérale shez leGeum urbanum L.C. R. Ac. Sc. 259, 4783–4786.
Cosson, L. 1972. Influence de l’éclairement sur la teneur en alcaloides tropaniques desDatura: analyse des processus pouvant en expliquer les effets. D. Sc. thesis. Paris VI.
Faugeras, G. and Paris M. 1971. Dosage des tétrahydrocannabinols duCannabis par densitométrie après séparation par chromatographie sur couche mince.Plantes méd. et Phyto., 5, 224–233.
Heslop-Harrison, J. and Heslop-Harrison, Y. 1969. In Induction of flowering: Some Case Histories. Evans L.T.I., Cornell University Press, 205–226.
Klein, F. K., Rapoport, H. and Elliott, H. W. 1971.Cannabis alkaloids.Nature.232, 258.
Paris, M. and Demesy, D. 1971. Nouvelles méthodes d’identifications et d’évaluations de l’activité du Cannabis.Pl. méd. et Phyto. 5, 28–38.
Paris, M. 7–12 September, 1971. Communication presented to the 31st International Congress of Pharmaceuticals Sciences in Washington, D.C.
Paris, R., Cosson, L. and Chouard, P. 1966. Influence de l’éclairement sur les variations ontogéniques des alcaloides deDatura tatula.Lloydia.29, 19–25.
Saint Firmin, A. and Paris, R. 1967. A new method for determining alkaloids of the atropine group by thin-layer chromatography.J. chromatography.31, 252–254.
Samrah, H. 11th December, 1970. Etude préliminaire sur la présence éventuelle de substances alcaloidiques dans leCannabis. United Nations Document ST/SOA/SER. S/27.
Author information
Authors and Affiliations
Additional information
Translated from the French text at the request of the C.N.R.S., Paris, by D. K. Jardine.
Rights and permissions
About this article
Cite this article
Paris, M., Boucher, F. & Cosson, L. The constituents ofCannabis sativa pollen. Econ Bot 29, 245–253 (1975). https://doi.org/10.1007/BF02873173
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02873173