Wyniki wyszukiwania - Biblioteka Nauki

1

Ethylene-dependent activity of phenylalanine ammonia-lyase and lignin formation in cucumber roots exposed to phenolic allelochemicals

100%

Politycka B.

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nr 2

123-127

2

Odczyn podloza a fitotoksycznosc pozostalosci korzeniowych drzew jabloni

100%

Politycka B.

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tom 01

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nr 1

3

Phenolics and the activities of phenylalanine ammonia-lyase, phenol-beta-glucosyltransferase and beta-glucosidase in cucumber roots as affected by phenolic allelochemicals

100%

Politycka B.

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nr 4

EN

Seven-day-old seedlings of cucumber (Cucumis sativus L.) cv. Wisconsin were treated with 0.1 mM solutions of cinnamic acid (ferulic and p-coumaric acids) and benzoic acid (p-hydroxybenzoic and vanillic acids) derivatives as stressors. The content of free and glucosylated soluble phenols and the activity of phenylalanine ammonia-lyase (E.C.4.3.1.5), phenol-β-glucosyltransferase (E.C.2.4.1.35.), and β-glucosidase (E.C.3.2.1.21.) in seedling roots as well as their length and fresh weight were examined. Changes in glucosylated phenolic content and phenol-β-glucosyltranspherase activity were observed under the influence of all phenolics applied. Treatment with ferulic and p-coumaric acids stimulated the increase of phenylalanine ammonia-lyase and β-glucosidase activity and slightly inhibited cucumber root growth.

4

Decomposition of apple leaves and roots in soil

63%

Adamska D. , Politycka B.

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2002

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tom 481

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nr 1

EN

The studies have been performed to trace changes in the soil content of phenolic compounds entering from decomposing apple leaves and roots, depending on the type and pH of soil and the rate of added apple residues. In has been found that roots added to soil were a richer source of phenolic compounds than leaves. Amount of phenols entering to soil from apple leaves and roots was in proportion with the applied rates of apple residues. A gradual fall in the content of phenolic compounds was found to occur in three successive months. But root residues added to the soil at a relatively high rate delayed this process. Neither liberation of phenolic compounds from the added apple residues nor the later fall of their content depended on the type and pll of the applied soil.

PL

Celem pracy było prześledzenie zmian zawartości związków fenolowych, pochodzących z rozkładających się w glebie liści i korzeni jabłoni, w zależności od typu i pH gleby oraz od ilości wprowadzonych resztek. Stwierdzono, że korzenie dodane do gleby były bogatszym źródłem związków fenolowych niż liście. Ilość fenoli uwalniających się z liści i korzeni była proporcjonalna do ich dawki wprowadzonej do gleby. Podczas trzech kolejnych miesięcy obserwowano stopniowy spadek zawartości fenoli. Resztki korzeni wprowadzone do gleby w stosunkowo wysokiej dawce hamowały ten proces. Zarówno uwalnianie fenoli z resztek jabłoni, jak i późniejszy spadek ich zawartości nie zależały od typu i pH gleby.

5

The effects of hydro- and osmopriming on the germination, vigour and hydrolytic enzymes activity of common zinnia (Zinnia elegans Jacq.) seeds

63%

Szopinska D. , Politycka B.

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tom 28

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nr 1

6

Application of wood chips for soil mulching in the cultivation of ornamental grasses

63%

Henschke M. , Politycka B.

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nr 2

7

Content of chloroplast pigments and anthocyanins in the leaves of Ocimum basilicum L. depending on nitrogen doses

63%

Politycka B. , Golcz A.

|

2004

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tom 16

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nr 1

23-29

8

A comparison of cabbage, cucumber,cress and radish susceptibility to phenolic metabolites occurring in apple tree tissues

63%

Adamska D. , Politycka B.

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nr 3 suppl.

9

Selenium in plants and its effect on feeding and development of phytophages

63%

Lukaszewicz S. , Politycka B.

Progress in Plant Protection

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2020

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tom 60

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nr 2

10

Związki fenolowe występujące w resztkach korzeniowych jabłoni i ich fitotoksyczność

63%

Politycka B. , Adamska D.

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tom 539

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nr 2

PL

Resztki korzeniowe jabłoni trzech odmian ‘Cortland’, ‘Elstar’ i ‘Szampion’ dodane do podłoża hamowały wzrost siewek ‘Antonówki’. Zgodnie z podjętym celem w pracy przeprowadzono identyfikację związków fenolowych występujących w korzeniach jabłoni, która wykazała obecność trzech związków fenolowych - florydzyny, naringeniny i kwasu chlorogenowego. Związki te zastosowane w testach biologicznych w stężeniach od 0,5-2 mM przejawiły toksyczność wobec kapusty, ogórka, rzeżuchy i rzodkiewki. Efekt toksyczny nasilał się wraz ze wzrostem ich stężenia.

EN

The root residues of three apple cultivars ‘Cortland’, ‘Elstar’ and ‘Szampion’ applied to substrate inhibited the growth of ‘Antonowka’ seedlings. According to the goal of study it was conducted the identification of phenolic compounds occurring in apple roots. Three phenolic compounds - phloridzin, naringenin and chlorogenic acid were found. These compounds used in bioassays at 0.5-2.0 mM concentration showed toxicity towards cabbage, cucumber, cress and radish. Toxic effect enhanced with the increase of phenolic compound concentration.

11

Zawartość barwników chloroplastowych i antocyjanowych w liściach bazylii wonnej (Ocimum basilicum L.)

63%

Politycka B. , Golcz A.

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nr 1

12

Stres allelochemiczny a intensywnosc transpiracji i powierzchnia sorbcyjna korzeni u roslin ogorka

63%

Politycka B. , Wojcik-Wojtkowiak D.

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tom 10

111-117

13

Response of maize, pea and radish roots to allelochemical stress

63%

Gmerek J. , Politycka B.

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tom 53

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nr 1

EN

We examined whether allelochemical stress leads to increased lipoxygenase activity in roots of sweet maize (Zea mays L. ssp. saccharata), pea (Pisum sativum L.) and radish (Raphanus sativum L. var. radicula). The lipoxygenase activity of soluble and membrane-bound fractions was assessed in roots after exposure to ferulic and p-coumaric acids. Lipid peroxidation and membrane injury were determined as indicators of stress. Increased lipoxygenase activity of both studied fractions was followed by lipid peroxidation and plasma membrane injury. The results suggest the key role of lipoxygenase in plasma membrane injury during allelochemical stress caused by administration of hydroxycinnamic acids.

14

Physico-chemical properties of substrate repeatedly used in sweet pepper growing

63%

Golcz A. , Politycka B.

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nr 1

15

Changes in content of phenolic compounds in orchard soil after replantation of apple trees in relation to fertilization and irrigation

51%

Politycka B. , Admska D. , Pacholak E.

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2001