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Preparations from Echinacea are among the most widely used herbal medicines. Most uses of Echinacea are based on the reported immunological properties. In this paper, we used callus of Echinacea augustifolia for isolation and researched the factors influencing the process of protoplasts preparation, the result indicated it was easy to isolate protoplast from buff-green Callus in E. augustifolia which...
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