SciELO - Scientific Electronic Library Online

 
vol.15 issue2Antimicrobial and synergic activity of fractions from the leaves of Schinopsis brasiliensis Engl. against Staphylococcus aureus multiresistant clonesFlavonol glycosides found in hydroethanolic extracts from Tilia cordata, a species utilized as anxiolytics author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Revista Brasileira de Plantas Medicinais

Print version ISSN 1516-0572

Abstract

MAZARO, S.M. et al. Potential of Calendula officinalis L. extracts in inducing phytoalexin synthesis and fungistatic effect on Botrytis cinerea in vitro. Rev. bras. plantas med. [online]. 2013, vol.15, n.2, pp.208-216. ISSN 1516-0572.  http://dx.doi.org/10.1590/S1516-05722013000200007.

Three experiments were carried out to evaluate the potential of calendula (Calendula officinalis L.) extracts for phytoalexin induction in soybean cotyledons, resistance mechanism induction in strawberry fruits and fungistatic effect on Botrytis cinerea in vitro. Experimental design was completely randomized with 15 treatments resulting from the combination of three forms of extraction (alcohol extract, infusion and maceration) at five concentrations (zero, 1.25, 2.5, 5 and 10%). Results showed that C. officinalis extracts could induce the phytoalexins glyceollins in soybean cotyledons. In the application of extracts during the strawberry postharvest, there was a change in flavonoid content, as well as in the activity of the enzyme PAL, which was stimulated by the application of extracts; however, fruit rot control was not noted. Fungistatic effect was observed for the extract obtained by maceration at all used concentrations, reducing in vitro the growth of the fungus B. cinerea, and from 2.5% there was total inhibition. The extract obtained by infusion also showed a positive response in reducing B. cinerea growth, with better response at the concentration of 10% extract.

Keywords : Strawberry; Medicinal plants; Glyceollin; Alternative control of diseases.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License