“…The most frequently used elicitors are of fungal and yeast origin, jasmonic acid and MJ, chitosan, metal ions and UV light. More recently, special attention has been paid to the use of CDs as true elicitors, which act inducing defence responses, which include pathogenesis-related proteins and phytoalexin synthesis, especially the stilbenes like trans-resveratrol in Vitis sp (Morales et al, 1998;Bru et al, 2006;Zamboni et al, 2009;Martinez-Esteso et al 2009), the accumulation of sesquiterpenes and phytosterols as well as pathogenesis-related proteins in Capsicum sp (Sabater-Jara et al, 2010b;Sabater-Jara et al, 2011), the increase of ajmalicine and catharanthine in C. roseus and the enhancement of the production of silymarin in Silybum marianum (L.) Gaernt cell cultures . The success in the production of secondary metabolites with the use of CDs lies in the properties of these compounds since they act not only as elicitors but also forming inclusion complexes (clathrates) with stilbenes (Morales et al, 1998), sesquiterpenes (Sabater-Jara et al, 2010b), indole alkaloids and silymarins , favouring the substantial accumulation of these metabolites and also preventing the toxic and/or inhibitory effect of their extracellular accumulation on cells cultured in suspension.…”