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In order to produce galanthamine, an alkaloid currently being tested in Alzheimer's disease therapy, we have used in vitro organ cultures of Narcissus confusus (Amaryllidaceae) plants starting from two different explants: double scale segments with basal plate from bulbs (organogenic cultures), and mature seeds (callogenic-organogenic cultures). Shoot-clumps were induced from buds obtained from twin-scales...
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