Publications by authors named "Christina Sykora"

The balm of the Norway spruce () is a well-known traditional herbal medicine used to cure wounds. Even though clinical trials have confirmed its empirical use, the active constituents, their mode of action, and the exact composition of this natural product are still unknown. In this study, the balm was subjected to fractionated extraction and further purified employing flash chromatography, HPLC-PDA-ELSD, preparative and analytical TLC.

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The culture broth of endophytic sp. AB100, isolated from the shoots of medicinal plant (L.) was investigated for the presence of antibacterial compounds.

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Pomace, the press residue from different fruits accumulating as waste product in food industry, contains high amounts of secondary metabolites that could be utilized for health-related applications. This study aims at evaluating the potential of pomaces of apricot, bilberry, and elderberry to serve as a source for endothelial nitric oxide synthase (eNOS)-activating compounds. Five extracts obtained from the lyophilized pomace of apricot and elderberry with solvents of different polarity were found to enhance A23187-stimulated eNOS activity when tested at 50 μg/mL in an [C]-l-arginine to [C]-l-citrulline conversion assay in the human endothelium-derived cell line EA.

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Apomixis evolves from a sexual background and usually is linked to polyploidization. Pseudogamous gametophytic apomicts, which require a fertilization to initiate seed development, of various ploidy levels frequently co-occur with their lower-ploid sexual ancestors, but the stability of such mixed populations is affected by reproductive interferences mediated by cross-pollination. Thereby, reproductive success of crosses depends on the difference in ploidy levels of mating partners, that is, on tolerance of deviation from the balanced ratio of maternal versus paternal genomes.

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At least three species, , and , are used in various traditional medicinal systems for different therapeutic purposes. The plant names "" and "" are often used as synonyms, which causes confusion in literature and implies that several studies may be based on improperly identified plant material. To avoid further confusion, the current status of the identification of these three species is illustrated.

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