Stimulating the effect of biotic elicitors on the production of pharmacologically active secondary metabolites in plant in vitro cultures
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Plant secondary products are the substances of great importance in many spheres of human life. In recent years, many methods have been investigated in order to increase yield of these compounds, synthesized in plant in vitro cultures ? systems, which proved to be very useful and efficient for this purpose. Among these techniques, biotic elicitation, although not yet applied to a large scale production, proved to be a very efficient procedure on laboratory scale. One of the major aims of the studies on biotic elicitation of plants is to identify universal and effective, but at the same time the cheapest and simplest elicitors which could be used to increase secondary metabolites' production in plant in vitro cultures. This review focuses on different biotic elicitors of complex composition (e.g.: fungal culture filtrates and homogenates), as well as those with a known structure (e.g.: chitosan or ergosterol). The factors influencing the elicitation process as well as ways of improving efficiency of this method by combining it with other techniques, which can also increase plant tissue productivity, are also discussed.
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Aleksandra Krolicka, Zaklad Ochrony i Biotechnologii Roslin, Katedra Biotechnologii, Miedzyuczelniany Wydzial Biotechnologii, Uniwersytet Gdanski i Akademia Medyczna, ul. Kladki 24, 80-822 Gdansk, Poland