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  1. 25 Acta Biochimica Polonica

  2. 7 Cellular and Molecular Biology Letters

  3. 2 Acta Physiologiae Plantarum

  4. 2 Dendrobiology

  5. 1 Acta Biologica Cracoviensia. Series Botanica

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  1. 39 Swiezewska E.

  2. 20 Chojnacki T.

  3. 6 Hertel J.

  4. 5 Marczewski A.

  5. 4 Bajda A.

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  1. 2 2018

  2. 1 2014

  3. 1 2013

  4. 1 2009

  5. 1 2008

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1

Polyisoprenoids: structure, biosynthesis and function

100%
Swiezewska E.
Acta Biochimica Polonica
|
2006
|
tom 53
|
nr Supplement 1
2

Prenylacja bialek.

75%
Swiezewska E.
Postępy Biochemii
|
1995
|
tom 41
|
nr 1
51-58
3

Long-chain polyprenols in gymno-sperm plants

63%
Swiezewska E., Choinacki T.
Acta Biochimica Polonica
|
1988
|
tom 35
|
nr 2
4

The occurrence of unique, long-chain polyprenols in the leaves of Potentilla species

63%
Swiezewska E., Chojnacki T.
Acta Biochimica Polonica
|
1989
|
tom 36
|
nr 2
5

Prenylation of RAB 3A protein in vitro

63%
Szymanska M., Swiezewska E.
Cellular and Molecular Biology Letters
|
1997
|
tom 02
|
nr 2
6

Polyprenols in leaves of fruit-trees of Rosaceae family

63%
Swiezewska E., Chojnacki T.
Acta Biochimica Polonica
|
1996
|
tom 43
|
nr 4
In leaves of various species of fruit-trees belonging to the Rosaceae family, large amounts of polyprenyl acetates (0.5-5.0% of dry weight) were found. Discrete constant differences of polyprenol spectrum characteristic of each genus studied: Mains, Pruttus and Pyrus were observed. In each species poly-ris-prenols composed of 19 and 20 isoprene units were predominating. In one of the 23 studied species (Prunus incisa) a fraction of long-chain polyprenols composed of 35—45 isoprene units was also present. It seems that this type of unusually long-chain polyprenols could occur also in other plants of the Rosaceae family
7

Generation of Arabidopsis thaliana lines withr educed CPT3 expression

51%
Onysk A., Swiezewska E., Surmacz L.
Acta Biochimica Polonica
|
2018
|
tom 65
|
nr S2
8

Plant long-chain polyprenols as chemotaxonomic markers

51%
Roslinska M., Walinska K., Swiezewska E., Chojnacki T.
Cellular and Molecular Biology Letters
|
2001
|
tom 06
|
nr 2
9

Plastoquinone: possible involvement in plant disease resistance

51%
Maciejewska U., Polkowska-Kowalczyk L., Swiezewska E., Szkopinska A.
Acta Biochimica Polonica
|
2002
|
tom 49
|
nr 3
The plant Solanum nigrum treated with the pathogen Phytophthora infestans-de- rived elicitor responded by elevated reactive oxygen species (ROS) production, lipid peroxidation and lipoxygenase (EC 1.13.11.12) activity in comparison with control plants indicating that oxidative stress took place. We demonstrate that these events are accompanied by a significant increase in plastoquinone (PQ) level. It is postulated that PQ may be associated with mechanisms maintaining a tightly controlled balance between the accumulation of ROS and antioxidant activity that determines the full ex­pression of effective defence.
10
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Plant long-chain polyprenols as chemotaxonomic markers

51%
Roslinska M., Walinska K., Swiezewska E., Chojnacki T.
Dendrobiology
|
2002
|
tom 47
The occurrence of long-chain polyprenols in leaves of plants of Lauraceae, Tiliaceae and Magnoliaceae families was studied. Separation of groups of polyprenols differing in the size of molecules was performed by thin-layer chromatography. In all studied species long-chain polyprenols were detected. The total polyprenol content in leaves reached values as high as 3% of their dry weight. In the studied species belonging to Lauraceae family a fraction of polyprenols composed of 10-14 isoprene units was present. In species of Tiliaceae and Magnoliaceae polyprenols composed of 9-12 and 10-12 isoprene units were present, respectively. Differences in polyprenol profile characteristic for each family studied were observed. These results were confirmed by HPLC. The structure of these polyprenols was examined by NMR spectrometry and in representative species studied polyprenols exibited the typical poly-cis structure. The effect of insolation on the rate of accumulation of polyprenols was documented.
11

Dolichols and polyprenols: elements of membranes, coenzymes and secondary metabolites

51%
Chojnacki T., Jankowski W., Swiezewska E.
Cellular and Molecular Biology Letters
|
2001
|
tom 06
|
nr 2
12

The activity of antioxidant enzymes in Arabidopsis thaliana exposed to colchicine and H2O2

51%
Drazkiewicz M., Skorzynska-Polit E., Wanke M., Swiezewska E.
Cellular and Molecular Biology Letters
|
2003
|
tom 08
|
nr 3
Studies on the possible interference of colchicine and H2O2 with the activity of some antioxidant enzymes were carried out on Arabidopsis thaliana v. Columbia grown in Murashige and Skooge nutrient medium. Measurements of superoxide dismutase (SOD), guaiacol peroxidase (POX), ascorbate peroxidase (APX) and catalase (CAT) activities were conducted spectrophotometrically. In the presence of colchicine, SOD activity increased, while CAT, APX and POX activities decreased. Inhibitory H2O2 effects on the activity of the enzymes were found. Colchicine pre-treatment resulted in an increase in CAT activity and a further increase in SOD activity in plants treated with H2O2.
13

The diversity of polyprenol pattern in leaves of fruit trees belonging to Rosaceae and Cornaceae

51%
Wanke M., Chojnacki T., Swiezewska E.
Acta Biochimica Polonica
|
1998
|
tom 45
|
nr 3
The polyprenol pattern in leaves of fruit trees belonging to the Rosaceaei (genera: Prunus, Malus) and Cornaceae (genus: Cornus) families is presented. The content of polyprenyl acetates varied within plant species between 10 to 50 mg per gram of dry weight. In genus Prunus, Cornus and in representatives of species Malus domestica, a mixture of polyprenols composed of 18, 19, 20, 21 isoprene units was found. In 6 species of genus Prunus ( sour-cherry ): P. serrulata-spontanea, P. yedoensis, P. fruticosa. P. kurilensis, P. subhirtella and P. incisa the presence of a second polyprenol family, i.e. the group of prenologues consisting of prenol -35, -36, -37, etc. up to -42 was detected.
14

Induction of the synthesis of an additional family of long-chain dolichols in the yeast Saccharomyces cerevisiae. Effect of starvation and ageing

51%
Szkopinska A., Swiezewska E., Rytka J.
Acta Biochimica Polonica
|
2002
|
tom 49
|
nr 3
The yeast Saccharomyces cerevisiae strain W303 synthesizes in the early logarith­mic phase of growth dolichols of 14-18 isoprene residues. The analysis of the polyisoprenoids present in the stationary phase revealed an additional family which proved to be also dolichols but of 19-24 isoprene residues, constituting 39% of the to­tal dolichols. The transfer of early logarithmic phase cells to a starvation medium lacking glucose or nitrogen resulted in the synthesis of the longer chain dolichols. The additional family of dolichols represented 13.8% and 10.3% of total dolichols in the glucose and nitrogen deficient media, respectively. The level of dolichols in yeast cells increased with the age of the cultures. Since both families of dolichols are present in stationary phase cells we postulate that the longer chain dolichols may be responsi­ble for the physico-chemical changes in cellular membranes allowing yeast cells to adapt to nutrient deficient conditions to maintain long-term viability.
15

The activity of antioxidant enzymes in Arabidopsis thaliana exposed to colchicine and hydrogen peroxide

51%
Drazkiewicz M., Skorzynska-Polit E., Wanke M., Swiezewska E.
Cellular and Molecular Biology Letters
|
2002
|
tom 07
|
nr Suppl.
16

Isoprenoid biosynthesis via 1-deoxy-D-xylulose 5-phosphate-2-C-methyl-D-erythritol 4-phosphate [DOXP-MEP] pathway

51%
Wanke M., Skorupinska-Tudek K., Swiezewska E.
Acta Biochimica Polonica
|
2001
|
tom 48
|
nr 3
Higher plants, several algae, bacteria, some strains of Streptomyces and possibly malaria parasite Plasmodium falciparum contain the novel, plastidic DOXP/MEP pathway for isoprenoid biosynthesis. This pathway, alternative with respect to the classical mevalonate pathway, starts with condensation of pyruvate and glyceral- dehyde-3-phosphate which yields 1-deoxy-D-xylulose 5-phosphate (DOXP); the latter product can be converted to isopentenyl diphosphate (IPP) and eventually to isoprenoids or thiamine and pyridoxal. Subsequent reactions of this pathway involve transformation of DOXP to 2-C-methyl-D-erythritol 4-phosphate (MEP) which after condensation with CTP forms 4-diphosphocytidyl-2-C-methyl-D-erythritol (CDP-ME). Then CDP-ME is phosphorylated to 4-diphosphocytidyl-2-C-methyl-D-erythritol 2-phosphate (CDP-ME2P) and to 2-C-methyl-D-erythritol-2,4-cyclodiphosphate (ME-2,4cPP) which is the last known intermediate of the DOXP/MEP pathway. For-mation of IPP and dimethylallyl diphosphate (DMAPP) from ME-2,4cPP still requires clarification. This novel pathway appears to be involved in biosynthesis of carotenoids, phytol (side chain of chlorophylls), isoprene, mono-, di-, tetraterpenes and plastoquinone whereas the mevalonate pathway is responsible for formation of sterols, sesqui- terpenes and triterpenes. Several isoprenoids were found to be of mixed origin suggesting that some exchange and/or cooperation exists between these two pathways of different biosynthetic origin. Contradictory results described below could indicate that these two pathways are operating under different physiological conditions of the cell and are dependent on the developmental state of plastids.
17

Biosynthesis of polyisoprenoid alcohols in hairy roots of coluria geoides

45%
Skorupinska-Tudek K., Bienkowski T., Olszowska O., Danikiewicz W., Swiezewska E.
Acta Physiologiae Plantarum
|
2004
|
tom 26
|
nr 3 suppl.
18

The search for long chain polyprenols in selected species of vietnamase flora

45%
Marczewski A., Chojnacki T., Swiezewska E., Le X. C., Tran T. B.
Acta Physiologiae Plantarum
|
2004
|
tom 26
|
nr 3 suppl.
19

Tocochromanols, plastoquinone and polyprenols in selected plant species from Chilean Patagonia

45%
Strzalka K., Szymanska R., Swiezewska E., Skorupinska-Tudek K., Suwalsky M.
Acta Biologica Cracoviensia. Series Botanica
|
2009
|
tom 51
|
nr 1
39-44
A collection of 14 species of Patagonian plants was evaluated for tocopherol content and composition, plastochromanol, plastoquinone content and polyprenol composition. Total tocopherols varied from 35.77 µg/g in Mutisia decurrens to 798 µg/g in Philesia magellanica. In most cases tocopherol composition was dominated by α-tocopherol, which accounted for more than 90% of total tocopherols. Of all the investigated species only Misodendrum punctulatum showed higher content of γ- than α-tocopherol, which is unusual for mature leaves. Plastochromanol, a homologue of γ-tocotrienol, was found in leaves of 10 of the 14 examined species, and was highest in Araucaria araucana leaves (132 µg/g). Total content of PQ-9 (oxidized and reduced) was highest in Fuchsia magellanica (774.3 µg/g), Philesia magellanica (791 µg/g), Misodendrum linearifolium (569 µg/g) and Amomyrtus luma (518.5 µg/g). Analysis of polyprenol content in the leaves of investigated plant species revealed detectable amounts (> 10 µg/g d.w.) of polyprenyl esters in six of them. Accumulation of free polyprenols was detected only in Chusquea quila leaves. Selected organs of Philesia magellanica and Fuchsia magellanica were further quantitatively analyzed for tocochromanol and polyprenol content. With the methods applied, different patterns of the analyzed compounds were identified in all the samples studied. Our results reveal some trends that may be of taxonomic interest. Some of these species can serve as a rich source of such bioactive compounds as tocochromanols or polyprenols.
20

Changes in polyisoprenoid alcohols accumulation upon abiotic stress in plants

45%
Skorupinska-Tudek K.-J., Sternik J., Bajda A., Klobus G., Swiezewska E.
Acta Biochimica Polonica
|
2007
|
tom 54
|
nr Supplement 4
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