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dc.contributor.authorPaužaitė, Giedrė-
dc.contributor.authorNaučienė, Zita-
dc.contributor.authorMalakauskienė, Asta-
dc.contributor.authorŽūkienė, Rasa-
dc.contributor.authorMildažienė, Vida-
dc.contributor.authorJakštas, Valdas-
dc.contributor.authorIvanauskas, Liudas-
dc.contributor.authorFilatova, Irina-
dc.contributor.authorLyushkevich, Veronika-
dc.description.abstractPurple coneflower, Echinacea purpurea (L.) Moench, is one of the most widely used medicinal plants and dietary supplements. Numerous attempts have been made to meet increasing demands in production of the commercially important plant biomass and to optimize composition of pharmaceutical products, including biotechnological approaches. We studied the effects of pre-sowing seed treatment, using vacuum (7 min), radio-frequency electromagnetic field (5-15 min) and cold plasma (2-7 min), on germination and growth of Echinacea purpurea by using germination tests, estimating plant morpho-physiological parameters, detecting certain metabolites and radical scavenging activity in leaf extracts. All applied treatments induced earlier and faster germination of E. purpurea seeds. Cold plasma and electromagnetic field did not change the final germination percentage, and it was decreased after vacuum treatment. The plants grown from all groups of treated seeds had larger height, developed more leaves, whereas some treatments substantially increased root weight. The content of vitamin C and phenolic acids in extracts of plant leaves from the treated groups was substantially higher in comparison to the control: the amount of cichoric acid per plant increased up to 3.8-fold, and amount of vitamin C per plant – up to 1.9 fold. Seed treatments induced an increase in radical scavenging activity (up to +114%) in leaf extracts. We report for the first time that seed treatment with physical stressors not only induce changes in germination and morpho-physiological plant parameters but also leads to substantial increase in amounts of chemical constituents and antioxidant activity in leaves of medicinal plant. [...]en
dc.description.sponsorshipBiochemijos katedra-
dc.description.sponsorshipGamtos mokslų fakultetas-
dc.description.sponsorshipKauno medicinos universitetas-
dc.description.sponsorshipLietuvos sveikatos mokslų universitetas. Medicinos akademija-
dc.description.sponsorshipVytauto Didžiojo universitetas-
dc.format.extentp. 12-13-
dc.relation.ispartof14th international conference of the Lithuanian biochemical society, Druskininkai, June 27-30, 2016 : program and abstract book. Vilnius : Lithuanian biochemical society, 2016-
dc.subjectŠalta plazmalt
dc.subjectEchinacea purpurealt
dc.subjectMorfologiniai parametrailt
dc.subjectElektromagnetinis laukaslt
dc.subjectCold plasmaen
dc.subjectEchinacea purpureaen
dc.subjectMorpho-physiological parametersen
dc.subjectElectromagnetic fielden
dc.subject.otherBiologija / Biology (N010)-
dc.titleThe content of secondary metabolites and antioxidant activity in purple coneflower (Echinacea purpurea) significantly increases after seed treatment with physical stressorsen
dc.typeKonferencijų tezės nerecenzuojamuose leidiniuose / Conference theses in non-peer-reviewed publications (T2)-
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item.fulltextWith Fulltext- mokslų fakultetas- katedra- kolekcijų sektorius- katedra- katedra- Didžiojo universitetas- Didžiojo universitetas- Didžiojo universitetas-
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications
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