بررسي اثر ساليسيليك اسيد بر ميزان برخي از متابوليت هاي ثانويه (ساپونين ها و آنتوسيانين ها و القاء مقاومت ضد ميكروبي در گياه دارويي BELLIS PERENNIS L.

The Effect of Salicylic Acid on Some of the Secondary Metabolites (Saponins and Anthocynins) and Induction of Antimicrobial Resistance in the Medicinal Plant Bellis perennis L.

Plants produce a diverse array of secondary metabolites. These compounds may be synthesized during normal growth and development and accumulating only in response to pathogen attack or stress. Interest in these molecules stems from their medicinal properties, antimicrobial activity and their likely role as determinats of plant disease resistance. Daisy (Bellis perennis I,.) accumulates secondary compounds (triterpenoid saponins and anthocyanins) in response to SA and pathogens. The results of the research indicates that the amount of secondary compounds (saponins and anthocyanins) in treated plants with SA were more than in the control plants. The amount of compounds in infected plants and without SA was more than in the control plants. When infected plants were treated with SA, an increase of compounds was shown in plants. The peaks observed in HPLC and their comparision with compounds standard confirms the results mentioned above. It is concluded that SA have significantly reduced disease severity and increase the amount of secondary compounds in infected and non-infected Daisy plants.