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Summary The authors evaluated the vegetative growth and alkaloid content of the Papaver somniferum L. var. album D.C. capsules cultivated in Assoro (Enna) Sicily, in relation to the geographical position, environmental conditions and soil type. Gas chromatography revealed low alkaloid opiate producing capacity which makes cultivation for therapeutic and toxicologic purposes uneconomic. On the contrary, the elevated production of capsules containing numerous seeds justifies its cultivation for extraction of oil for the food industry and paint production. The results suggest that the cultivation of Papaver somniferum studied is used for baking traditional cakes and bread.

Summary Rat epididymal adipose tissue artery releases, during incubation, a PGI 2 -like substance which is active on rat blood pressure as well on aggregation induced by collagen or ADP. The radioimmunoassay of 6-keto PGF 1α , the stable metabolite of PGI 2 , confirms that this eicosanoid is sinthesized also within the blood vessel cells supplying the adipocytes.