Wszystkie pola: Dębski, Henryk - Katalog OPAC zbiorów

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Tytuł:: Elicitation with Sodium Silicate and Iron Chelate Affects the Contents of Phenolic Compounds and Minerals in Buckwheat Sprouts
Autorzy:: Dębski, Henryk
Wiczkowski, Wiesław
Szawara-Nowak, Dorota
Horbowicz, Marcin
Powiązania:: https://bibliotekanauki.pl/articles/1363275.pdf
Data publikacji:: 2021
Wydawca:: Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:: Fagopyrum esculentum
common buckwheat
flavonoids
phenolic acids
iron
silicon
Opis:: The study concerned the effect of elicitors on the contents of free flavonoids and phenolic acids, as well as their esters and glycosides, and contents of minerals in 7-day sprouts of common buckwheat. An aqueous solution containing a mixture of sodium silicate and Fe-EDTA (SIL-Fe) was compared with the same concentration of sodium silicate alone (SIL) and water (control). Phenolic compounds were analysed using an HPLC–MS/MS apparatus equipped with an ion-trap mass spectrometer, and analyses were conducted by multiple reaction monitoring of selected negative ions. The contents of macro- and microelements in sprouts were determined by the ICP-AES method, after sample mineralization in a mixture of HNO3 and H2O2. The study showed that SIL-Fe influenced the accumulation of individual phenolics in buckwheat sprouts in different ways. Among the major flavonoids in the buckwheat sprouts treated with SIL-Fe, the content of free forms and esters of (‒)-epicatechin and glycosides of quercetin as well as the total content of flavonoids decreased. Elicitation of buckwheat sprouts with SIL and SIL-Fe reduced the contents of calcium, potassium, copper, and zinc; however, the SIL-Fe treatment caused a 5-fold increase in iron content and a 2-fold increase in silicon content. The ratio of total flavonoids to the iron content of SIL-Fe-treated sprouts was 11.5, which was substantially lower than in the control, where it reached 64. The results of this study indicate that it is possible to produce buckwheat sprouts with a high content of flavonoids and fortified with iron, which may increase the availability of this element.
Źródło:: Polish Journal of Food and Nutrition Sciences; 2021, 71, 1; 21-28
1230-0322
2083-6007
Pojawia się w:: Polish Journal of Food and Nutrition Sciences
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Effect of propaquizafop treatment on pigments content and growth of sweet maize seedlings
Wpływ traktowania propachizafopem na zawartość barwników i wzrost siewek kukurydzy cukrowej
Autorzy:: Rusjan, Anna
Dębski, Henryk
Koczkodaj, Danuta
Mitrus, Joanna
Horbowicz, Marcin
Powiązania:: https://bibliotekanauki.pl/articles/2223281.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:: anthocyanins
carotenoids
chlorophyll
herbicide
mode of use
antocyjany
chlorofil
herbicyd
karotenoidy
metoda stosowania
Opis:: Background. We examined the response of sweet maize seedlings (Zea mays var. saccharata L., cv. Złota Karłowa), as a non-target plant, to various doses of propaquizafop ((R)-2-[4-[(6-chloro-2-quinoxalinyl)oxy] phenoxy]-propionic acid 2-[[(1-methylethylidene)amino]oxy]ethyl ester) applied to the root zone or on shoots. Material and methods. The herbicide at concentrations of 0.56; 5.63 or 56.3 μM was used in a study on seedlings grown in hydroponic cultures in controlled light and temperature conditions. In the experiment the roots of maize seedlings were exposed to propaquizafop for 7 days. Also, seedling shoots were exposed by their immersing for 30 seconds in the investigated propaquizafop concentrations. We assessed the impact of propaquizafop on the seedlings elongation of primary roots and shoots. The content of anthocyanins in epicotyls and photosynthetic pigments (chlorophyll a, chlorophyll b, total carotenoids) in leaves were also measured. Results. A weaker effect on shoot growth was found when the roots of sweet maize seedlings were exposed to propaquizafop than was the case in the application of the herbicide to shoot. Application of the herbicide to the root zone also had little effect on the levels of chlorophylls and carotenoids, or on the ratios between them, in the leaves. The presumed responsibility for this effect is a weak uptake of the herbicide by the roots and / or its transport to the leaves of the maize seedlings. Conclusion. Propaquizafop has a smaller effect on sweet maize seedlings when applied to the root zone than it has after foliar exposition. A decline of anthocyanin content under the influence of low doses of propaquizafop suggests that it has a greater effect on the metabolism of phenylpropanoids than other inhibitors of acetyl coenzyme A carboxylase have.
Badano reakcję siewek kukurydzy cukrowej (Zea mays var. Saccharata L., Złota Karłowa), jako rośliny niebędącej celem zwalczania, na różne dawki propachizafopu zastosowanego do strefy korzeniowej lub na pędy. Herbicyd stosowano w stężeniach 0,56; 5,63 lub 56,3 μM, na siewki rosnące hydroponicznie w kontrolowanych warunkach światła i temperatury. W eksperymentach siewki kukurydzy eksponowano na propaquizafop przez 7 dni. Aby ocenić wpływ propaquizafopu na siewki, mierzono wydłużenie korzenia głównego i pędu, a także zawartości antocyjanów w epikotylach i barwników fotosyntetycznych (chlorofile, karotenoidy) w liściach. Propaquizafop stosowany do strefy korzeniowej (pożywka) wywierał słabszy wpływ na wzrost pędów kukurydzy i niewielki wpływ na poziom chlorofilu i karotenoidów w liściach siewek kukurydzy niż zastosowany dolistnie. Efekty te są prawdopodobnie spowodowane niewielkim poborem przez korzenie i/lub translokacją herbicydu w siewce kukurydzy. Spadek zawartości antocyjanów pod wpływem małych dawek propaquizafopu sugeruje, że ma on większy wpływ na metabolizm fenylopropanoidów niż inne inhibitory karboksylazy acetylokoenzymu A.
Źródło:: Acta Scientiarum Polonorum. Agricultura; 2017, 16, 4; 227-234
1644-0625
Pojawia się w:: Acta Scientiarum Polonorum. Agricultura
Dostawca treści:: Biblioteka Nauki