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Wyszukujesz frazę "Lewandowska, Małgorzata" wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Recent advances in understanding plant response to sulfur-deficiency stress
Autorzy:
Lewandowska, Małgorzata
Sirko, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1040699.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
sulfate assimilation
cysteine
nutrient availability
stress response
glutathione
sulfur metabolism
Opis:
Sulfur is an essential macronutrient for all living organisms. Plants are able to assimilate inorganic sulfur and incorporate it into organic compounds, while animals rely entirely on organic sources of sulfur. In the last decades sulfate availability in soils has become the major limiting factor for plant production in many countries due to significant reduction of anthropogenic sulfur emission forced by introducing stringent environmental legislation. The sulfur flux after transferring plants from optimal conditions to sulfur deficiency is regulated on multiple levels including transcription, translation and activity of enzymes needed for sulfate assimilation and synthesis of sulfur-containing metabolites. Most of these regulatory steps are not yet fully characterized. Plant responses to sulfur limitation are complex and can be divided into phases depending on the degree of sulfur shortage. The initial responses are limited to adaptations within sulfur metabolic pathway, while multiple metabolic pathways and developmental process are affected when sulfur shortage becomes more severe. The major aim of this work is a comprehensive review of recent progress in understanding the regulation of plant adaptations to sulfur deficit.
Źródło:
Acta Biochimica Polonica; 2008, 55, 3; 457-471
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polyadenylation and decay of 26S rRNA as part of Nicotiana tabacum response to cadmium
Autorzy:
Lewandowska, Małgorzata
Borcz, Barbara
Kamińska, Jolanta
Wawrzyński, Adam
Sirko, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1040862.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
polyadenylation of rRNA
RNA decay
programmed cell death
cadmium
tobacco
Opis:
In contrast to mRNAs, ribosomal RNAs are generally not considered to be polyadenylated. Only a few recent reports describe non-abundant polyadenylated rRNA-related transcripts that have been detected and characterized in yeast and in human cells. Here we depict the phenomenon of 26S rRNA polyadenylation and degradation that was observed in shoots of Nicotiana tabaccum plants grown in the presence of cadmium. Fragments corresponding to 26S rRNA were identified using suppression subtractive hybridization during screening for genes induced in tobacco plants upon a three-week exposure to 15 µM cadmium chloride. Extracts prepared from the above-ground tissues of cadmium-treated tobacco plants were supposed to contain exclusively polyadenylated mRNAs. Surprisingly, numerous polyadenylated fragments matching parts of 26S rRNA were identified and their presence was confirmed by Northern blot and cDNA amplification techniques. To our knowledge this is the first report on rRNA polyadenylation in plants.
Źródło:
Acta Biochimica Polonica; 2007, 54, 4; 747-755
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of substrate stiffness on differentiation of umbilical cord stem cells
Autorzy:
Witkowska-Zimny, Małgorzata
Walenko, Katarzyna
Wałkiewicz, Anna
Pojda, Zygmunt
Przybylski, Jacek
Lewandowska-Szumieł, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/1039745.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
substrate stiffness
osteogenic differentiation
umbilical cord mesenchymal stromal/stem cells
Opis:
Tissue formation and maintenance is regulated by various factors, including biological, physiological and physical signals transmitted between cells as well as originating from cell-substrate interactions. In our study, the osteogenic potential of mesenchymal stromal/stem cells isolated from umbilical cord Wharton's jelly (UC-MSCs) was investigated in relation to the substrate rigidity on polyacrylamide hydrogel (PAAM). Osteogenic differentiation of UC-MSCs was enhanced on stiff substrate compared to soft substrates, illustrating that the mechanical environment can play a role in differentiation of this type of cells. These results show that substrate stiffness can regulate UC-MSCs differentiation, and hence may have significant implications for design of biomaterials with appropriate mechanical properties for regenerative medicine.
Źródło:
Acta Biochimica Polonica; 2012, 59, 2; 261-264
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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