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1

Wspomnienia o prof. dr hab. Jerzym Kaczkowskim

100%
Bielawski W.
Przegląd Zbożowo-Młynarski
|
2005
|
tom 49
|
nr 03
39
2

Program unowoczesnienia ksztalcenia w SGGW dla zapewnienia konkurencyjnosci oraz wysokiej kompetencji absolwentow

100%
Bielawski W.
Agricola. Pismo SGGW
|
2009
|
nr 74
25-28
3

Izoformy syntetazy glutaminowej w roslinach wyzszych

100%
Bielawski W.
Wiadomości Botaniczne
|
1994
|
tom 38
|
nr 1-2
67-76
4

Effect of some compounds on glutamine synthetase isoform activity from Triticale seedling leaves

100%
Bielawski W.
Acta Physiologiae Plantarum
|
1994
|
tom 16
|
nr 4
5

Distribution of glutamine synthetase isoforms in Triticale seedling leaves

100%
Bielawski W.
Acta Physiologiae Plantarum
|
1993
|
tom 15
|
nr 4
6

Purification and partial characterization of glutamine synthetase isoforms from Triticale seedlings

100%
Bielawski W.
Acta Biochimica Polonica
|
1994
|
tom 41
|
nr 4
Two isoforms of glutamine synthetase (EC 6.3.1.2), cytoplasmic (GSi) and chloroplastic (GSi) were isolated from shoots of 14-day-old Triticale seedlings, and purified 260-fold and 248-fold, respectively. Specific activities of the two preparations were 35.1 and 33.5 nmol x min-1 per mg of protein, respectively. Both crude extracts and homogeneous GSi and GS2 preparations required divalent metal ions (Mg2+, Mn2+, Co2+) for their activities. Mg2+ was the most effective activator, the highest activity of GSi being reached at 5 mM, and that of GS2 at 20 mM MgCl2- The optimum pH for the two isoforms showed large differences, dependent also on the kind of divalent ion. Molecular masses of GSi and GS2 were 305000 Da and 385200 Da, respectively. It seems that native protein of GSi is built from eight identical subunits of Mm 38000 Da and that of GS2 of the same number of subunits but of Mm of about 48000 Da. Proteins of GS isoforms differed significantly in their amino-acid composition.
7

Purification and characterization of a major gliadin-degrading cysteine endopeptidase from germinating triticale seeds

63%
Prabucka B., Bielawski W.
Acta Biochimica Polonica
|
2003
|
tom 50
|
nr Supplement 1
8

Proline iminopeptidase of triticale seedlings

63%
Szawlowska U., Bielawski W.
Acta Biochimica Polonica
|
2006
|
tom 53
|
nr Supplement 1
9
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Identification and expression analysis of a novel phytocystatin in developing and germinating seeds of triticale (x Triticosecale Wittm.)

63%
Siminska J., Bielawski W.
Acta Societatis Botanicorum Poloniae
|
2015
|
tom 84
|
nr 1
In this paper the complete cDNA sequence of a newly identified triticale phytocystatin, TrcC-7, was analyzed. Because TrcC-7 transcripts were present in seeds, we hypothesized that it may regulate storage protein accumulation and degradation. Therefore, changes in mRNA and protein levels during the entire period of seed development and germination were examined. Expression of TrcC-7 increased during development and decreased at the end of maturation and subsequently increased during seed germination. Based on these results, TrcC-7 likely regulates cysteine proteinase activity during the accumulation and mobilization of storage proteins.
10

Glutamate dehydrogenase and glutamine synthetase in rye seedlings supplied with ammonium and nitrate

63%
Bielawski W., Bielawski A.
Acta Biochimica Polonica
|
1979
|
tom 26
|
nr 4
11

The properties and functions of bacterial aminopeptidases

63%
Jankiewicz U., Bielawski W.
Acta Microbiologica Polonica
|
2003
|
tom 52
|
nr 3
12

Glutamate dehydrogenase in higher plants

63%
Kwinta J., Bielawski W.
Acta Physiologiae Plantarum
|
1998
|
tom 20
|
nr 4
13

Ability of Pseudomonas sp. to synthesize aminopeptidases in the presence of various carbon and nitrogen sources

63%
Jankiewicz U., Bielawski W.
Acta Microbiologica Polonica
|
2002
|
tom 51
|
nr 3
14

Purification and partial characteristic of a major gliadin-degrading cysteine endopeptidase from germinating triticale seeds

63%
Prabucka B., Bielawski W.
Acta Physiologiae Plantarum
|
2004
|
tom 26
|
nr 4
15

Structure of carboxypeptidase III from triticale

51%
Drzymala A., Grabowska A., Bielawski W.
Acta Biochimica Polonica
|
2006
|
tom 53
|
nr Supplement 1
16
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Molecular cloning and expression analysis of ABA 8'-hydroxylase genes during germination of triticale (X Triticosecale Wittm.) seeds

51%
Fidler J., Zdunek-Zastocka E., Bielawski W.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2013
|
tom 94
|
nr 3
17

Mobilizacji białek zapasowych ziarniaków zbóż

51%
Drzymala A., Prabucka B., Bielawski W.
Postępy Biochemii
|
2009
|
tom 55
|
nr 4
18

Comparison of some cereal seedlings on the ability of glutamine synthetase induction

51%
Bielawski W., Kwinta J., Kaczkowski J.
Acta Physiologiae Plantarum
|
1989
|
tom 11
|
nr 2
19

Endopeptidases EP3 and EP4 present in dry triticale grains can degrade wheat gliadin

51%
Prabucka B., Bielawski W., Drzymala A.
Acta Physiologiae Plantarum
|
2004
|
tom 26
|
nr 3 suppl.
20

Glutamine synthetase and glutamate dehydrogenase in triticale seeds: molecular cloning and genes expression

51%
Grabowska A., Kwinta J., Bielawski W.
Acta Physiologiae Plantarum
|
2012
|
tom 34
|
nr 6
In higher plants, glutamine synthetase (GS; EC 6.3.1.2) and glutamate dehydrogenase (GDH; EC 1.4.1.2) are the predominant enzymes in nitrogen metabolism. In this study, we cloned both the GS and GDH genes and analyzed their expression levels and variations in their activity in developing and germinating x Triticosecale (cv. Witon) kernels. The developing kernel samples were collected 3, 5, 7, 9, 13, 15, 20, 25, 30, 35, 40 and 45 days after flowering (DAF). The germinating kernel samples were collected after 8, 16, 24, 48 and 72 h of imbibition. There are two GS isoforms that are localized to different compartments: the cytosol (GS1) and the chloroplast (GS2). Five cDNAs encoding GS proteins in triticale plants were obtained using RT-PCR. We cloned the four genes encoding GS1, which we designated TsGS1-1, TsGS1-2, TsGS1-3 and TsGS1-4 and the only gene encoding GS2, which was designated TsGS2-1. We studied the changes in the enzymatic activity and the expression profiles of the GDH, GS1 and GS2 genes in both the developing and germinating seeds of triticale. Based on our results, there is likely cooperation between GDH and GS1 in the synthesis of glutamine and glutamate during the early stages of seed formation and in the scutella of kernels for up to 24 h of imbibition.
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