Search results for: Bogumił Leszczyński

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Transcriptional Profiling of Catalase Genes in Juglone-Treated Seeds of Maize (Zea Mays L.) and Wheat (Triticum Aestivum L.)

Hubert Sytykiewicz, Agnieszka Kozak, Bogumił Leszczyński, Cezary Sempruch, more

Acta Biologica Hungarica > 2018 > 69 > 4 > 449-463

The major aim of the present study was to investigate the influence of juglone (JU; 5-hydroxy-l,4-naph-thoquinone) treatments on the expression level of Catl, Cat2 and Cat3 genes, encoding the respective catalase isozymes in maize (Zeamays L.) and wheat (Triticum aestivum L.) seeds. In parallel, germination efficiency, catalase (CAT) activity and hydrogen peroxide (H₂O₂) content in juglone-exposed...

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Accumulation of amino acids and phenolic compounds in biochemical plant responses to feeding of two different herbivorous arthropod pests

Katarzyna Golan, Cezary Sempruch, Edyta Górska-Drabik, Paweł Czerniewicz, more

Arthropod-Plant Interactions > 2017 > 11 > 5 > 675-682

The study aimed at comparing the changes in the content of free amino acids, phenolic compounds and the activity of PAL and TAL caused by two piercing-sucking arthropods: the grape mealybug (Pseudococcus maritimus Ehrh.) and the two-spotted spider mite (Tetranychus urticae Koch) in the leaves of orchid and strawberry, respectively. The obtained results show that the amino acid content and the ratio...

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Participation of the enzymes involved in the biosynthesis of biogenic amines in biochemical interactions between wheat (Triticum aestivum; Poaceae) and bird cherry-oat aphid (Rhopalosiphum padi; Aphididae)

Cezary Sempruch, Bogumił Leszczyński, Martyna Wilczewska, Hubert Sytykiewicz, more

Biochemical Systematics and Ecology > 2016 > 65 > C > 33-39

The studies concerned changes in the activities of ornithine decarboxylase (ODC), lysine decarboxylase (LDC) and tyrosine decarboxylase (TyDC) in tissues of wheat (Triticum aestivum L.) infested with bird cherry-oat aphid (Rhopalosiphum padi L.).Obtained results showed that the activities of the enzymes were stimulated in the less susceptible wheat Kontesa cv. infested by the aphids. In the case of...

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Changes in amino acid decarboxylation in maize (Zea mays; Poaceae) tissues in response to bird cherry-oat aphid (Rhopalosiphum padi; Aphididae) infestation

Cezary Sempruch, Bogumił Leszczyński, Martyna Wilczewska, Grzegorz Chrzanowski, more

Biochemical Systematics and Ecology > 2015 > 60 > Complete > 158-164

The study was focused on changes in the activities of ornithine decarboxylase (ODC), lysine decarboxylase (LDC) and tyrosine decarboxylase (TyDC) in maize seedlings infested by bird cherry-oat aphid (Rhopalosiphum padi L.).Obtained results showed that the aphid infestation induced LDC activity strongly within tissues of less aphid-settled maize (Waza cv.) during the first week of the infestation in...

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Allelopatyczne oddziaływanie juglonu.

Agnieszka Kozak, Bogumił Leszczyński, Cezary Sempruch, Hubert Sytykiewicz

Kosmos > 2014 > 63 > 4 > 611-622

Allelopatia jest powszechnie występującym zjawiskiem w świecie roślin, które rosnąc w sąsiedztwie oddziaływają na siebie hamująco bądź stymulująco, wpływając na bioróżnorodność w lokalnym środowisku. Allelopatyczne oddziaływania roślin z rodziny orzechowatych (Juglandaceace) są doskonale widoczne w przyrodzie. Drzewa te syntetyzują wiele allelozwiązków, jednak najważniejszym z nich jest juglon należący...

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Participation of amino acid decarboxylases in biochemical interactions between triticale (Triticosecale; Poaceae) and bird cherry-oat aphid (Rhopalosiphum padi; Aphididae)

Cezary Sempruch, Weronika Marczuk, Bogumił Leszczyński, Paweł Czerniewicz

Biochemical Systematics and Ecology > 2013 > 51 > Complete > 349-356

The roles of ornithine decarboxylase, lysine decarboxylase and tyrosine decarboxylase in biochemical interactions of two cultivars of winter triticale (Triticosecale), Tornado and Witon, and bird cherry-oat aphid (Rhopalosiphum padi L.) were determined. Results showed the resistant Witon had higher lysine decarboxylase activity than the susceptible Tornado. There was a significant negative correlation...

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Biochemical characterisation of chlorophyllase from leaves of selected Prunus species - A comparative study

Hubert Sytykiewicz, Iwona Sprawka, Paweł Czerniewicz, Cezary Sempruch, more

Acta Biochimica Polonica > 2013 > 60 > 3 > 457-465

Despite senescence-induced chlorophyll depletion in plants has been widely studied, the enzymatic background of this physiologically regulated process still remains highly unclear. The purpose of this study was to determine selected biochemical properties of partially purified fractions of chlorophyllase (Chlase, chlorophyll chlorophyllido-hydrolase, EC 3.1.1.14) from leaves of three Prunus species:...

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Effect of phenolic acids from black currant, sour cherry and walnut on grain aphid (Sitobion avenae F.) development

Grzegorz Chrzanowski, Bogumił Leszczyński, Paweł Czerniewicz, Hubert Sytykiewicz, more

Crop Protection > 2012 > 35 > Complete > 71-77

The influence of naturally-occurring phenolic acid mixtures from selected plants was tested against the grain aphid (Sitobion avenae F.). Phenolic acids were extracted from the leaves of black currant (Ribes nigrum L.), sour cherry (Prunus cerasus L.) and walnut (Juglans regia L.), as well as from the green husks of walnut. The highest content of total phenolic acids and individual compounds such...

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Biochemical interactions between triticale (Triticosecale; Poaceae) amines and bird cherry-oat aphid (Rhopalosiphum padi; Aphididae)

Cezary Sempruch, Marcin Horbowicz, Ryszard Kosson, Bogumił Leszczyński

Biochemical Systematics and Ecology > 2012 > 40 > Complete > 162-168

The polyamines (PAs) and tryptamine are low molecular weight compounds involved in plant responses to abiotic and biotic stresses. The phenomenon is well known in case of pathogenic fungi, bacteria and virus infections. However, their role in plant defence against herbivorous arthropods is not clear. Thus, the quantification of polyamines and tryptamine within tissues of less and more susceptible...

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Phytotoxicity of Roundup Ultra 360 SL in aquatic ecosystems: Biochemical evaluation with duckweed (Lemna minor L.) as a model plant

Elżbieta Kielak, Cezary Sempruch, Halina Mioduszewska, Józef Klocek, more

Pesticide Biochemistry and Physiology > 2011 > 99 > 3 > 237-243

Glyphosate-based herbicides (e.g. Roundup Ultra 360 SL) are extensively used in aquatic environment. Although glyphosate is more environmental favorable than many other herbicides, it may be exceptionally dangerous for aquatic ecosystems through high water solubility. Thus, the aim of the work was quantification of influence of Roundup Ultra 360 SL (containing isopropylamine salt of glyphosate as...

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Effect of low and high-saponin lines of alfalfa on pea aphid

Golawska Sylwia, Bogumil Leszczynski, Oleszek Wieslaw

Journal of Insect Physiology > 2006 > 52 > 7 > 737-743

Pea aphid fed on a high-saponin line of alfalfa showed reduction of reproduction and survival, and disturbance in development of its population. This line negatively influenced aphid probing behaviour, particularly prolonging the non-probing period and probing of the peripheral tissues (epidermis and mesophyll) and shortening the period of phloem sap ingestion. The high-saponin line of alfalfa differed...

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Phenol oxidising enzymes in the grain aphid’s saliva

Anna Urbanska, W. Freddy Tjallingii, Anthony F. G. Dixon, Bogumil Leszczynski

Entomologia Experimentalis et Applicata > 1998 > 86 > 2 > 197-203

Sucrose-agarose gels and sucrose liquid diets were used to study the phenol oxidising enzymes in the salivary secretions of the grain aphid, Sitobion avenae (Fabricius). Activity indicating the presence of two oxidoreductases, polyphenol oxidase (PPO) and peroxidase (Px), was found. Both enzymes were present in the aphid’s stylet sheath (gelling saliva) but only polyphenol oxidase activity was found...

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