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  1. Book ; Online: Polyphenols in Crops, Medicinal and Wild Edible Plants : From Their Metabolism to Their Benefits for Human Health

    Brestic, Marian / Zivcak, Marek / Sytar, Oksana / Landi, Marco

    2020  

    Keywords Research & information: general ; Biology, life sciences ; Ecological science, the Biosphere
    Size 1 electronic resource (192 pages)
    Publisher MDPI - Multidisciplinary Digital Publishing Institute
    Publishing place Basel, Switzerland
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021044682
    ISBN 9783039361175 ; 3039361171
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article: Editorial: The adaptation strategies of plants to alleviate important environmental stresses.

    Sytar, Oksana / Kumar, Ashwani

    Frontiers in plant science

    2023  Volume 14, Page(s) 1307399

    Language English
    Publishing date 2023-10-12
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2023.1307399
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Special Issue-"Bioactive Compounds from Natural Sources II".

    Sytar, Oksana / Smetanska, Iryna

    Molecules (Basel, Switzerland)

    2023  Volume 28, Issue 11

    Abstract: In recent decades, there has been a great interest in bioactive compounds from natural sources [ ... ]. ...

    Abstract In recent decades, there has been a great interest in bioactive compounds from natural sources [...].
    Language English
    Publishing date 2023-05-31
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules28114450
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.MO 81: Show issues

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  4. Article ; Online: Special Issue—“Bioactive Compounds from Natural Sources II”

    Oksana Sytar / Iryna Smetanska

    Molecules, Vol 28, Iss 4450, p

    2023  Volume 4450

    Abstract: In recent decades, there has been a great interest in bioactive compounds from natural sources [.] ...

    Abstract In recent decades, there has been a great interest in bioactive compounds from natural sources [.]
    Keywords n/a ; Organic chemistry ; QD241-441
    Language English
    Publishing date 2023-05-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Special Issue "Bioactive Compounds from Natural Sources (2020, 2021)".

    Sytar, Oksana / Smetanska, Iryna

    Molecules (Basel, Switzerland)

    2022  Volume 27, Issue 6

    Abstract: In recent decades, there has been a huge level of interest in bioactive compounds from natural sources [ ... ]. ...

    Abstract In recent decades, there has been a huge level of interest in bioactive compounds from natural sources [...].
    Language English
    Publishing date 2022-03-16
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules27061929
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.MO 81: Show issues

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  6. Article ; Online: Special Issue “Bioactive Compounds from Natural Sources (2020, 2021)”

    Oksana Sytar / Iryna Smetanska

    Molecules, Vol 27, Iss 1929, p

    2022  Volume 1929

    Abstract: In recent decades, there has been a huge level of interest in bioactive compounds from natural sources [.] ...

    Abstract In recent decades, there has been a huge level of interest in bioactive compounds from natural sources [.]
    Keywords n/a ; Organic chemistry ; QD241-441
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    Inter-library loan at ZB MED

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  7. Article: Editorial: Plants for future climate: responses and adaptations to combined, multifactorial, and sequential stresses.

    Kumar, Vinay / Srivastava, Ashish Kumar / Sytar, Oksana / Penna, Suprasanna

    Frontiers in plant science

    2023  Volume 14, Page(s) 1290649

    Language English
    Publishing date 2023-10-13
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2023.1290649
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Cultivar-dependent and drought-induced modulation of secondary metabolites, adaptative defense in

    Oksana, Sytar / Marek, Kovar / Marian, Brestic / Marek, Zivcak

    Physiology and molecular biology of plants : an international journal of functional plant biology

    2023  Volume 29, Issue 10, Page(s) 1605–1618

    Abstract: The present study investigates the biochemical responses of buckwheat to drought stress, particularly focusing on phenolic acids and flavonoids, abundant in this crop. We hypothesize that distinct genotypic responses to drought stress will lead to ... ...

    Abstract The present study investigates the biochemical responses of buckwheat to drought stress, particularly focusing on phenolic acids and flavonoids, abundant in this crop. We hypothesize that distinct genotypic responses to drought stress will lead to variations in phenolic acid accumulation. Two common buckwheat cultivars, Panda (East European origin) and PI 482597 (originating from Zimbabwe), were subjected to drought treatment, with biochemical traits, relative water content, and photosynthetic pigments regularly assessed. While chlorophyll content remained unaffected by dehydration, total carotenoid content decreased. The unique increase in the chlorophyll to carotenoid ratio suggests a specific role of carotenoids in buckwheat's metabolic stress response. While most phenolic acids and flavonoids exhibited increasing trends during progressive dehydration, their dynamics differed. Notably, rutin content increased early in drought stress, while chlorogenic acid and kaempferol showed enhanced levels only under severe dehydration. Genotypic differences were observed in chlorogenic acid, neochlorogenic acid, cryptochlorogenic acid, 4-hydroxybenzoic acid, and quercetin. Conversely, trans-p-coumaric acid, trans-ferulic acid, vanillic acid, rutin, and kaempferol showed similar trends in both cultivars. By aligning observed drought-induced changes in phenolic compound contents with biosynthesis pathways, trade-offs between individual compounds were identified, contributing to the mechanistic understanding of varied stress responses.
    Language English
    Publishing date 2023-11-09
    Publishing country India
    Document type Journal Article
    ZDB-ID 2487126-6
    ISSN 0974-0430 ; 0971-5894
    ISSN (online) 0974-0430
    ISSN 0971-5894
    DOI 10.1007/s12298-023-01376-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Implications of Fagopyrin Formation In Vitro by UV Spectroscopic Analysis.

    Kosyan, Anatolij / Sytar, Oksana

    Molecules (Basel, Switzerland)

    2021  Volume 26, Issue 7

    Abstract: The present work aims at studying the possible biosynthesis of fagopyrin in buckwheat plants with an attempt to address the existing gaps. The developed method of differential spectrophotometry can be used for identification of naphthodianthrones ... ...

    Abstract The present work aims at studying the possible biosynthesis of fagopyrin in buckwheat plants with an attempt to address the existing gaps. The developed method of differential spectrophotometry can be used for identification of naphthodianthrones fagopyrins. It was found that in the vegetative mass of buckwheat plants, fagopyrin precursor-2-(piperidine-2-yl)-emodindianthron could be present. As fagopyrin can be produced by light effect, the temperature factor may influence the formation of protofagopyrin in vitro. An optimum temperature range was estimated for protofagopyrin formation. A possible fagopyrin biosynthesis under in vitro conditions was suggested.
    MeSH term(s) Fagopyrum/chemistry ; Plant Extracts/analysis ; Plant Extracts/chemistry ; Quinones/analysis ; Quinones/chemistry ; Spectrophotometry, Ultraviolet ; Spectrum Analysis/methods ; Temperature
    Chemical Substances Plant Extracts ; Quinones ; fagopyrin
    Language English
    Publishing date 2021-04-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules26072013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.MO 81: Show issues

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  10. Article ; Online: Implications of Fagopyrin Formation In Vitro by UV Spectroscopic Analysis

    Anatolij Kosyan / Oksana Sytar

    Molecules, Vol 26, Iss 2013, p

    2021  Volume 2013

    Abstract: The present work aims at studying the possible biosynthesis of fagopyrin in buckwheat plants with an attempt to address the existing gaps. The developed method of differential spectrophotometry can be used for identification of naphthodianthrones ... ...

    Abstract The present work aims at studying the possible biosynthesis of fagopyrin in buckwheat plants with an attempt to address the existing gaps. The developed method of differential spectrophotometry can be used for identification of naphthodianthrones fagopyrins. It was found that in the vegetative mass of buckwheat plants, fagopyrin precursor-2-(piperidine-2-yl)-emodindianthron could be present. As fagopyrin can be produced by light effect, the temperature factor may influence the formation of protofagopyrin in vitro. An optimum temperature range was estimated for protofagopyrin formation. A possible fagopyrin biosynthesis under in vitro conditions was suggested.
    Keywords naphthodianthrones ; fagopyrin ; hypericin ; Fagopyrum ; differential spectrophotometry ; Organic chemistry ; QD241-441
    Language English
    Publishing date 2021-04-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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