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In vitro cultures of medicinal of plants - VII
 Machačková, Jana ; Tůmová, Lenka (advisor) ; Martin, Jan (referee)
In vitro cultures of medicinal of plants - VII Elicitation is one of the methods that can be used to increase production or accumulation of secondary metabolites in explants cultures. There were used callus and suspensions cultures of Silybum marianum (L.) Gaertn. Derivate N-phenylpyrazin-2-carboxamid was used as abiotic elicitor in concentrations c1=1.159x10-3 mol/l, c2=1.159x10-4 mol/l and c3=1.159x10- 5 mol/l. The effect of elicitors on the production (flavonolignans of silymarin complex and flavonoid of taxifolin) was evaluated after 6, 12, 24, 48, 72 and 168 hours. Cultures were cultivated on Murashige and Skoog medium with addition 10 mg/ml α-naphtylacetic acid (α- NAA). HPLC method for analysis was used. The maximal content of flavonolignans was reached after elicitor application in concentration c2 after 168 h in callus culture (0,08%). However the highest content of silydianin was detected after application of elicitor in concentration c1 (0.11 %) in suspensions culture. The maximal content of flavonoid taxifolin was noted in of nutritient medium of suspensions cultures.
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