TY - JOUR N2 - Rumex thyrsiflorus Fingerh. is mentioned as a European folk medicinal plant. This species has also been traditionally used as an edible plant in Eastern Europe because of its nutritional value. During the study, qualitative and quantitative sex-related differences of phenolic constituents in methanolic leaf extracts of R. thyrsiflorus were evaluated. The presence of the same substances (nine phenolic acids before, and six phenolic acids after acid hydrolysis, nine flavonoids, and a catechin) was estimated in both female and male specimens, using the HPLC-DAD method. A statistically significant higher content of eleven constituents in female plant extracts (acids: chlorogenic, p-coumaric, cryptochlorogenic, gallic, protocatechuic, neochlorogenic, vanillic; flavonoids: quercitrin, rhamnetin, rutoside; and catechin) was shown. This is the first report concerning the relation between the sex and the content of biologically active phenolic secondary metabolites in leaf extracts of R. thyrsiflorus. Female plants of R. thyrsiflorus could be useful for pharmaceutical purposes as a preferential source of bioactive phenolic acids, flavonoids and especially catechin. L1 - http://czasopisma.pan.pl/Content/114999/PDF/2020-01-ABC-04-Dziedzic.pdf L2 - http://czasopisma.pan.pl/Content/114999 PY - 2020 IS - No 1 EP - 50 DO - 10.24425/abcsb.2020.131663 KW - Rumex thyrsiflorus KW - thyrse sorrel KW - dioecy KW - sex-related differences KW - sexual dimorphism in plants KW - phenolic compounds KW - phytochemical analysis KW - HPLC-DAD A1 - Dziedzic, Katarzyna A1 - Szopa, Agnieszka A1 - Waligórski, Piotr A1 - Ekiert, Halina A1 - Ślesak, Halina PB - Biological Commission of the Polish Academy of Sciences – Cracow Branch VL - vol. 62 DA - 2020.04.07 T1 - Sex-related differences in the dioecious species Rumex thyrsiflorus Fingerh. – analysis of the content of phenolic constituents in leaf extracts SP - 43 UR - http://czasopisma.pan.pl/dlibra/publication/edition/114999 T2 - Acta Biologica Cracoviensia s. Botanica ER -