Autor: Karolak, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Callus cultures of Harpagophytum procumbens (Burch.) DC. ex Meisn. – production of secondary metabolites and antioxidant activity
Autorzy:: Grabkowska, R.
Matkowski, A.
Grzegorczyk-Karolak, I.
Wysokinska, H.
Powiązania:: https://bibliotekanauki.pl/articles/951258.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: conference
callus culture
Harpagophytum procumbens
antioxidant activity
secondary metabolite
root tuber
analgesic effect
antiinflammatory effect
rheumatic disease
osteoarthritis
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Phenolic compounds and properties of antioxidants in grapevine roots [Vitis vinifera L.] under drought stress followed by recovery
Autorzy:: Weidner, S
Karolak, M.
Karamac, M.
Kosinska, A.
Amarowicz, R.
Powiązania:: https://bibliotekanauki.pl/articles/59363.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: soil condition
drought stress
oxidative stress
root
Vitis vinifera
seedling
plant root
phenolic compound
root tissue
grape-vine
soil moisture
antioxidative system
Opis:: Grapevine seedlings Vitis vinifera were grown in a greenhouse under optimum conditions (soil moisture ca 70%) and under drought stress (soil moisture ca 35%). In addition, some of the plants subjected to drought underwent subsequent regeneration under optimum conditions. Drought stress caused accumulation of total phenolic compounds in grapevine roots, which may indicate that these compounds play an important role in the adaptation of roots to growth under stress conditions. Phenolic acids found in the roots occurred in the ester-bound form only. p-coumaric acid was present in the highest concentrations (6.2 to 10.5 µg/g fresh matter). The content of ferulic acid was lower, ranging from 2.4 to 4.6 µg/g fresh matter. The lowest concentration in grapevine roots was achieved by caffeic acid (2.4 to 2.9 µg/g fresh matter). The levels of p-coumaric and ferulic acids in roots rose significantly under the drought stress, while the concentration of caffeic acid increased during the post-drought recovery period. This may suggest that some of the phenolic acids protect plants under stress conditions. All the extracts from grapevine roots had antioxidative properties, but the antiradical activity of the extracts obtained from roots subjected to drought stress was inferior to the control. The same extracts were also characterised by depressed reducing power. The results imply that tolerance of grapevine to soil drought may be associated with the value of antioxidative potential in root tissues of these plants.
Źródło:: Acta Societatis Botanicorum Poloniae; 2009, 78, 2; 97-103
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Phenylethanoid glycosides in Plantago media L. organs obtained in in vitro cultures
Autorzy:: Budzianowska, A.
Kikowska, M.
Malkiewicz, M.
Karolak, I.
Budzianowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/2117896.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: acteoside
direct and indirect organogenesis
hoary plantain
micropropagation
phenyle-
thanoids
plantamajoside
TLC densitometry
Opis:: Micropropagation of Plantago media L. and the presence of phenolic compounds in organs of multiplied plants were investigated for the first time. Multiplication of plant material was achieved in shoot-tip cultures and via direct organogenesis on Murashige and Skoog (MS) medium with four variants of plant growth regulators (M1–M4). The best multiplication coefficient – 9.2 was obtained in seedling shoot-tip cultures on MS medium M3 with BA 0.2 mg/L and IAA 1.0 mg/L. Methanol extracts prepared separately from shoots and roots of in vitro- derived plantlets were found to contain typical of the genus Plantago L. phenylethanoid glycosides as the only phenolics. Acteoside and plantamajoside were the major compounds – both known to possess a wide range of promising biological activities applicable for medicinal (therapeutic) and cosmetic uses. Martynoside, as a trace constituent, was also found for the first time in the studied species. The quantitative screening of the extracts by TLC video densitometric method showed a higher content of acteoside in shoots (range 62.43–93.03 mg/g, dry weight) and plantamajoside in roots (range 22.45–44.08 mg/g); the highest recorded values – 93.03 mg/g and 44.08 mg/g, respectively, were found in the organs obtained on MS medium M4 with BA 2.0 mg/L.
Źródło:: Acta Biologica Cracoviensia. Series Botanica; 2019, 61, 1; 75-86
0001-5296
Pojawia się w:: Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:: Biblioteka Nauki

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