منابع مشابه
The antioxidant, hemolytic and cholinesterase inhibition properties of Galium verum L. and Tragopogon pratensis subsp. pratensis
The antioxidant properties of Galium verum L. (Lady’s Bedstraw) and Tragopogon pratensis subsp. pratensis (Goat’s beard) methanol extracts, from localities in Serbia were evaluated, through determination of total phenolics and flavonoids content, as well as DPPH • (1,1-diphenyl-2-picrylhydrazyl) radical scavenging, ABTS •+ (2,2-azinobis-(3ethylbenzthiazoline-6-sulfonic acid) radical cation deco...
متن کاملOnly seed size matters for germination in different populations of the dimorphic Tragopogon pratensis subsp. pratensis (Asteraceae).
Many studies have focused on the ecology of seed dimorphism, the production of two seed types by a single plant. Morphology and seed size are usually correlated, but how morphology affects germination percentage and seedling growth is poorly understood. Here we explicitly separate these effects for nine populations of the dimorphic species Tragopogon pratensis subsp. pratensis. Larger seeds yie...
متن کاملDifferential Regulation of Flavone Glycosylation during Ontogeny of Silene pratensis
Two isovitexin glycosides have been found in the cotyledons and foliage leaves o f Silene pratensis plants that are unable to glycosylate isovitexin in their petals (genotype gg glgl fgfg). The glycosides (isovitexin 7-O -galactoside and isovitexin 7-O -galactose 2 " -0 -a rab in o sid e ) were present only in the lower leaves: leaves p roduced later in the developm ent o f the flower stem accu...
متن کاملSERK and APOSTART. Candidate genes for apomixis in Poa pratensis.
Seed production generally requires the mating of opposite sex gametes. Apomixis, an asexual mode of reproduction, avoids both meiotic reduction and egg fertilization. The essential feature of apomixis is that an embryo is formed autonomously by parthenogenesis from an unreduced egg of an embryo sac generated through apomeiosis. If apomixis were well understood and harnessed, it could be exploit...
متن کاملExploiting repetitive sequences and BAC clones in Festuca pratensis karyotyping
The Festuca genus is thought to be the most numerous genus of the Poaceae family. One of the most agronomically important forage grasses, Festuca pratensis Huds. is treated as a model plant to study the molecular mechanisms associated with tolerance to winter stresses, including frost. However, the precise mapping of the genes governing stress tolerance in this species is difficult as its karyo...
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ژورنال
عنوان ژورنال: Österreichische Botanische Zeitschrift
سال: 1899
ISSN: 0378-2697,1615-6110
DOI: 10.1007/bf01794342