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1

The in vitro effect of methyl jasmonate on the growth and senescence processes of bean plants

100%
Maksymiec W.
Acta Physiologiae Plantarum
|
1998
|
tom 20
|
nr 1 suppl.
2

Signaling responses in plants to heavy metal stress

100%
Maksymiec W.
Acta Physiologiae Plantarum
|
2007
|
tom 29
|
nr 3
Heavy metal toxicity is one of the major abiotic stresses leading to hazardous health effects in animals and plants. Because of their high reactivity they can directly influence growth, senescence and energy synthesis processes. In this review a new indirect mechanism of heavy metal action is proposed. This mechanism is connected with the generation of reactive oxygen species (especially H₂O₂) and jasmonate and ethylene signaling pathways and shows that toxicity symptoms observed in plants may result from direct heavy metal influence as well as the activity of some signaling molecules induced by the stress action.
3
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Content available

Capillary zone electrophoresis for determination of reduced and oxidised ascorbate and glutathione in roots and leaf segments of Zea mays plants exposed to Cd and Cu

63%
Dresler S., Maksymiec W.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2013
|
tom 12
|
nr 6
The concentration of non-enzymatic antioxidants such as ascorbate and glutathione in tissues is one of the major plant responses to biotic and many abiotic stresses, including metals. Therefore, it is crucial to develop the most effective methods for simultaneous quantitative analysis of these antioxidants. Capillary zone electrophoresis allows relatively fast and effective analysis. The aim of the paper was to apply and optimise the capillary electrophoresis conditions for simultaneous determination of glutathione, glutathione disulphide, ascorbate, and dehydroascorbate in small plant tissue samples exposed to copper and cadmium. The method ensures good linearity and reproducibility, with correlation coefficients 0.988 for ascorbate and 0.999 for glutathione and glutathione disulphide, and with detection limits approximately 2.50, 0.65 and 0.50 ppm, respectively. Cu stress was found to increase the ascorbate concentration and glutathione content in leaves, while Cd increased glutathione in the oldest leaf segments and root.
4

Short time of Cd and Cu action on the dynamic of H2O2 accumulation and roots growth of the Phaseolus coccineus plants

63%
Maksymiec W., Mazurek M.
Acta Physiologiae Plantarum
|
2009
|
tom 31
|
nr 1 Suppl.
5

The influence of Ca2plus on the toxicity extent of Cu2plus action on runner bean plants at different growth stages of their primary leaves

63%
Maksymiec W., Baszynski T.
Biological Bulletin of Poznań. Supplement
|
1995
|
tom 32
6

The effect of Cd2+ on the release of proteins from thylakoid membranes of tomato leaves

63%
Maksymiec W., Baszynski T.
Acta Societatis Botanicorum Poloniae
|
1988
|
tom 57
|
nr 4
7

Oxidative processes under heavy metal stress. The influence of methyl jasmonate

63%
Maksymiec W., Krupa Z.
Acta Physiologiae Plantarum
|
2003
|
tom 25
|
nr 3 suppl.
8

The role of signal molecules in Cu-induced inhibition of growth in higher plants

63%
Maksymiec W., Krupa Z.
Acta Physiologiae Plantarum
|
2001
|
tom 23
|
nr 3 suppl.
9

The role of Ca ions in changes induced by excess Cu2plus in bean plants. Growth parameters

63%
Maksymiec W., Baszynski T.
Acta Physiologiae Plantarum
|
1998
|
tom 20
|
nr 4
The effect of Ca on Cu toxicity in runner bean plants (Phaseolus coccineus L. cv. Piěkny Jaś) grown hydroponically in nutrient solution was studied. The toxic effect of excess Cu on plants depends on their age and Ca content in the medium. Copper applied in excess to the plants at the early phase of leaf development strongly limits the uptake of Ca ions from the nutrient solution, particularly their translocation to leaves. Increased Ca content limits the inhibitory effect of Cu on leaf growth and decreases the content of chloroplast pigments to the level approximate to that of control. At this growth stage the effect of excess Cu is at least partially connected with limited Ca transport to leaves. At the intermediate leaf phase Cu-treated plants react slightly to changed Ca content. At the end of the primary leaf development increased Ca concentration in the medium intensifies senescence processes induced by excess Cu. The changes are partially connected with intensified water deficit. Increased Ca content in the nutrient solution limits Cu accumulation in the individual organs of Cu-treated plants. However, Cu accumulation in leaves is not decreased at a high level of Ca. Copper generally decreases Ca content in the youngest plants, whereas in the oldest ones only in the case of a low level of Ca in the nutrient solution.
10

Is the methyl jasmonate and heavy metal-induced oxidative burst in leaves of Arabidopsis thaliana plants related to Ca2plus influx?

63%
Maksymiec W., Krupa Z.
Cellular and Molecular Biology Letters
|
2002
|
tom 07
|
nr Suppl.
11

Stark effect of PSII and CP1 particles isolated from Cu2 -treated bean plants in their different growth stages

63%
Maksymiec W., Krawczyk S.
Biological Bulletin of Poznań. Supplement
|
1996
|
tom 33
12

The effect of short term exposition of Cu and Cd ions on Arabidopsis thaliana; connection with jasmonate pathway

63%
Maksymiec W., Krupa Z.
Polish Journal of Natural Sciences. Supplement
|
2003
|
tom 01
13

The in vivo and in vitro influence of methyl jasmonate on oxidative processes in Arabidopsis thaliana leaves

63%
Maksymiec W., Krupa Z.
Acta Physiologiae Plantarum
|
2002
|
tom 24
|
nr 4
14

Different effect of Ca concentration on Cu2 plus - induced changes in bean plants

63%
Maksymiec W., Baszynski T.
Biological Bulletin of Poznań. Supplement
|
1997
|
tom 34
15

Molecular organization of the LHCII complexes under Cu ions excess

51%
Janik E., Gruszecki W., Maksymiec W.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2009
|
tom 51
|
nr 2
16

Effects of Cu2plus, cytokinins and jasmonate on content of two flavonols identified in zucchini cotyledons

51%
Stoynova-Bakalova E., Nikolova M., Maksymiec W.
Acta Biologica Cracoviensia. Series Botanica
|
2009
|
tom 51
|
nr 2
77-83
This study examined the effects of cytokinins and methyl jasmonate (JAMe) alone and in combination on the growth and flavonol content of zucchini cotyledons cultured in the presence or absence of Cu2+. During greening of cotyledons in intensive diurnal illumination, rutin was identified as the main flavonol compound. Its accumulation was greatly stimulated by phenylurea cytokinin (4PU-30) but reduced by Cu2+. Stimulation by benzylaminopurine (BA) was less. JAMe showed an inhibitory effect, alone and with simultaneous addition of Cu2+ or cytokinins. In moderate excess (100 μM and 250 μM CuSO4), Cu2+ enhanced stimulation by 4PU-30 of rutin accumulation; at a higher concentration or with other substances it decreased the rutin level. The other flavonol detected, kaempferol-3-rhamnoside, increased after JAMe or 4PU-30 were added; in the other cases it decreased. The data obtained indicate that cytokinins can increase rutin content in developing Cucurbita cotyledons. Rutin content usually decreased under stress induced by excess Cu2+, but Cu2+ in moderate excess had a stimulating effect in the presence of higher phenylurea cytokinin levels
17

Accumulation of low-molecular-weight organic acids in roots and leaf segments of Zea mays plants treated with cadmium and copper

51%
Dresler A., Hanaka A., Bednarek W., Maksymiec W.
Acta Physiologiae Plantarum
|
2014
|
tom 36
|
nr 06
Maize seedlings grown in a nutrient solution were treated with Cd (50, 100 μM) or Cu (50, 100 μM). Roots and separated leaf sections (from the youngest–– basal, through the middle––mature, to the oldest––apical) were analysed. Shoot and root fresh weight, and root net growth rates were reduced significantly after Cu application in comparison to Cd. Copper (50, 100 μM) and cadmium (100 μM) decreased the sum of chlorophyll and total carotenoid pools mostly in mature and old leaf sections. The concentration of Cu and Cd increased in the old and mature leaf sections. Analysis of organic acids showed that both metals differently influenced the lowmolecular-weight organic acids (LMWOAs) content in maize leaf sections. In mature sections, the excess Cu increased the succinate and tartrate contents, whereas in the young ones mainly the tartrate level was elevated. Cadmium elevated citrate accumulation in mature and old sections, compared to the control plants. Malate, the main LMWOA in maize leaves, increased only after addition of 100 μM of Cd (mature and old sections) or 50 μM of Cu (old sections). Analysis of LMWOAs in roots showed that the excess of Cd or Cu induced higher accumulation of tartrate and malate and, additionally, copper increased the citrate content.
18

Short term effect of vitamin C and jasmonate on the level of reactive oxidative species in Arabidopsis thaliana plants

51%
Maksymiec W., Kois A., Krupa Z.
Acta Biochimica Polonica
|
2006
|
tom 53
|
nr Supplement 1
19

The influence of signalling particles in the mechanism of growth inhibition induced by excess copper

51%
Maksymiec W., Graj A., Krupa Z.
Biological Letters
|
2005
|
tom 42
|
nr 2 Spec.Vol.
20
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

The effect of salicylic acid and excess of copper on selected stress parameters induced in Phaseolus coccineus leaves

45%
Hanaka A., Dresler S., Bednarek W., Wojcik M., Maksymiec W.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2013
|
tom 94
|
nr 3
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