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1

Mechanizmy indukowanych swiatlem ruchow chloroplastow

100%
Malec P.
Postępy Biologii Komórki. Suplement
|
1993
|
tom 2
87-96
2

Zielenieją, ale nie z zazdrości - regulacja biosyntezy chlorofilu

63%
Jedynak P., Malec P.
Postępy Biologii Komórki
|
2015
|
tom 42
|
nr 1
3

Wodoprzepuszczalność przepalonych odpadów powęglowych oraz ich mieszanek z popiołem lotnym

63%
Zawisza E., Malec P.
Acta Scientiarum Polonorum. Formatio Circumiectus
|
2016
|
tom 15
|
nr 3
4

Putative myosin light chain kinase homolog is required for blue light- induced chloroplast reo-rientations in Lemna trisulca L.

63%
Grabalska M., Malec P.
Acta Physiologiae Plantarum
|
2004
|
tom 26
|
nr 3 suppl.
5

Cadmium accumulation in two lines of Haplopappus gracilis calli as determined by Atomic Absorption Spectroscopy and Anodic Stripping Voltammetry

63%
Wajda L., Malec P.
Acta Physiologiae Plantarum
|
1992
|
tom 14
|
nr 2
6

Carotenoids content in etiolated seedlings of three A. thaliana ecotypes

51%
Mysliwa-Kurdziel B., Jemiola-Rzeminska M., Malec P., Strzalka K.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2011
|
tom 53
|
nr 1
7

Effect of epinephrine, propranolol, and verapamil on the chemiluminescence of neutrophils in duodenal ulcer patients

51%
Markiewicz K., Kantorski J., Malec P., Tchorzewski H.
Archivum Immunologiae et Therapiae Experimentalis
|
1989
|
tom 37
|
nr 1-2
8

Effect on temperature on carotenoid content and composition in cyanobacterium Synechocystis PCC6803

51%
Klodawska K., Malec P., Gombos Z., Strzalka K.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2009
|
tom 51
|
nr 2
9

Metody wspolczesnej biotechnologii w procesach biodegradacji zanieczyszczen. Czesc 3. Biologiczna utylizacja formaldehydu w sciekach przemyslowych przez drozdze metylotroficzne

51%
Kaszycki P., Krzeminska H., Malec P., Koloczek H.
Ekologia i Technika
|
1999
|
tom 07
|
nr 2
35-38
10
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Photoinduction of seed germination in Arabidopsis thaliana is modulated by phototropis

51%
Jedynak P., Mysliwa-Kurdziel B., Turek E., Malec P.
Acta Biologica Cracoviensia. Series Botanica
|
2013
|
tom 55
|
nr 1
Light exposure is an important environmental factor which breaks seed dormancy in many plant species. Phytochromes have been identified as playing a crucial role in perception of the light signal that releases seed germination in Arabidopsis. Phototropins (Phot1, Phot2) are blue/UV-photoreceptors in plants which mediate phototropic responses, chloroplast relocation, hypocotyl growth inhibition and stomata opening. We studied germination under different light conditions in Arabidopsis Phot1-null and Phot2-null mutants and in a double phot1phot2 mutant. Germination of single phot1 and phot2 mutants in darkness was much lower than in wildtype (WT) seeds, whereas double phot1phot2 mutant lacking both functional phototropins germinated at frequency comparable to WT seeds, irrespective of light and temperature conditions. Light treatment of imbibed seeds was essential for effective germination of phot1, irrespective of low-temperature conditioning. In contrast, cold stratification promoted dark germination of phot2 seeds after imbibition in dim light. Low germination frequency of phot1 seeds under low light intensity suggests that the presence of functional Phot1 might be crucial for effective germination at these conditions. The lower germination frequency of phot2 seeds under continuous light suggests that Phot2 might be responsible for stimulating germination of seeds exposed to direct daylight. Thus, the phototropin system may cooperate with phytochromes regulating the germination competence of seeds under different environmental conditions.
11

Zinc reversal of cadmium - induced energy transfer changes in photosystem II of Ceratophyllum demersum L. as observed by whole-leaf 77K fluorescence

51%
Malec P., Waloszek A., Prasad M. N. V., Strzalka K.
Acta Physiologiae Plantarum
|
2004
|
tom 26
|
nr 3 suppl.
12

Organogenesis induced by hormones in cultured in vitro Arabidopsis thaliana genotypes

51%
Zabicki P., Kuta E., Malec P.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2012
|
tom 54
|
nr 1
13

Altered accumulation of different forms of protochlorophyllide in etiolated seedlings of photoreceptor mutants of Arabidopsis thaliana

51%
Turek E., Mysliwa-Kurdziel B., Malec P.
Biological Letters
|
2005
|
tom 42
|
nr 2 Spec.Vol.
14

Variations in xanthophyll composition in etiolated seedlings of Arabidopsis thaliana correlate with protochlorophyllide accumulation

45%
Mysliwa-Kurdziel B., Jemiola-Rzeminska M., Turek E., Strzalka K., Malec P.
Acta Biochimica Polonica
|
2012
|
tom 59
|
nr 1
Protochlorophyllide (Pchlide) accumulation and xantophyll composition were studied in 5-day old etiolated seedlings of three ecotypes of Arabidopsis thaliana: Columbia (Col-0), Landsberg erecta (Ler) and Wassiliewska (Ws). The total Pchlide level as measured by fluorescence spectroscopy varied significantly between ecotypes. A rapid HPLC method revealed quantitative differences in carotenoid composition. It was found that in the Ler ecotype any enhanced accumulation of Pchlide correlates with an increased level of lutein, suggesting the role of enzymes involved in lutein synthesis in cross-regulation between chlorophyll and carotenoid biosynthetic pathways. The function of the dark-accumulated carotenoid pool in seedling de-etiolation is discussed.
15

An EPR study of thylakoid membrane dynamics in mutants of the carotenoid biosynthesis pathway of Synechocystis sp. PCC6803

45%
Klodawska K., Malec P., Kis M., Gombos Z., Strzalka K.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2011
|
tom 53
|
nr 1
16

Structural and molecular features of somatic embryogenesis in Trifolium nigrescens

45%
Pilarska M., Konieczny R., Salaj J., Malec P., Knox J. P.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2013
|
tom 55
|
nr 2
17
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Arabidopsis cyclin-dependent kinase gene CDKG;2 is involved in organogenic responses induced in vitro

45%
Zabicki P., Kuta E., Tuleja M., Rataj K., Malec P.
Acta Biologica Cracoviensia. Series Botanica
|
2013
|
tom 55
|
nr 1
The Arabidopsis CDKG;2 gene encodes a putative cyclin-dependent Ser/Thr protein kinase of unknown biological function. This gene shows structural similarity to animal and human cyclin-dependent (PITSLRE) kinases. This study used the homozygous knockout cdkg;2 mutant based on T-DNA insertional line SALK_090262 to study the effect of mutation of the CDKG;2 gene on explant response and in vitro plant regeneration. For callus induction and proliferation, hypocotyls and cotyledons of 3-day-old seedlings of cdkg;2 and A. thaliana ecotype Col-0 were cultured on solid MS medium supplemented with 2,4-D (2 mg l-1). Organogenesis was induced after callus transfer on MS + TDZ (0.5 mg l-1). The initiation time of callus and shoot induction differed between the mutant and control cultures. Shoot regeneration after callus transfer on MS + TDZ was delayed in cdkg;2 (31 days versus 7 days in Col- 0). Shoots formed on callus derived from Col-0 hypocotyls but not on cotyledon-derived callus; in cdkg;2, shoots developed on both callus types. Mutant shoots did not form roots, regenerants were dwarfed, and inflorescences had small bud-like flowers with a reduced corolla and generative organs. Abnormalities observed during cdkg;2 organogenesis suggest a role of CDKG;2 as a regulator of adventitious root initiation.
18

EPR study of thylakoid membrane dynamics in mutants of the carotenoid biosynthesis pathway of Synechocystis sp. PCC6803

45%
Klodawska K., Malec P., Kis M., Gombos Z., Strzalka K.
Acta Biochimica Polonica
|
2012
|
tom 59
|
nr 1
EPR spectroscopy using 5-doxylstearic acid (5-SASL) and 16-doxylstearic acid (16-SASL) spin probes was used to study the fluidity of thylakoid membranes. These were isolated from wild type Synechocystis and from several mutants in genes encoding selected enzymes of the carotenoid biosynthesis pathway and/or acyl-lipid desaturases. Cyanobacteria were cultivated at 25°C and 35°C under different light regimes: photoautotrophically (PAG) and/or in light-activated heterotrophic conditions (LAHG). The relative fluidity of membranes was estimated from EPR spectra based on the empirical outermost splitting parameter in a temperature range from 15°C to 40°C. Our findings demonstrate that in native thylakoid membranes the elimination of xanthophylls decreased fluidity in the inner membrane region under optimal growth conditions (25°C) and increased it under sublethal heat stress (35°C). This indicated that the overall fluidity of native photosynthetic membranes in cyanobacteria may be influenced by the ratio of polar to non-polar carotenoid pools under different environmental conditions.
19

Toxic responses of Lemna trisulca L. (Duckweed) to cadmium and copper- relevance to environmental monitoring

45%
Prasad M. N. V., Malec P., Woloszek A., Bojko M., Strzalka K.
Acta Physiologiae Plantarum
|
1999
|
tom 21
|
nr 3 suppl.
20

COP1 regulates biosynthesis and degradation of xanthophylls in Arabidopsis seedlings

39%
Jedynak P., Panz T., Mysliwa-Kurdziel B., Waloszek A., Strzalka K., Malec P.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2011
|
tom 53
|
nr 1
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