1996•Journal of Herbs Spices & Medicinal PlantsRequires access

The Effect of Total Mineral Dose and pH on Alkaloid Accumulation inDatura stramoniumL.

Kristiaan Demeyer, Robert Dejaegere

Abstract

The influence of total mineral dose and pH on accumulation of the alkaloids hyoscyamine and scopolamine in Datura stramonium L. was investigated using culture solutions. At a pH 5.0, alkaloid accumulation in the leaves and stems was signiticantly decreased as compared with plants grown at pH 6.0 or 7.0, suggesting a decreased synthesis of alkaloids in plants grown at low pH. An increase in mineral concentration of the culture media produced a concomitant increase in alkaloid content and yield. An excess mineral supply, however, produced a temporal decrease in alkaloid content.

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Key concepts: Datura stramonium, Hyoscyamine, Alkaloid, Scopolamine, Chemistry, Solanaceae, Botany, Horticulture