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Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini
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| Zeitschriftentitel: | Acta Societatis Botanicorum Poloniae |
|---|---|
| Personen und Körperschaften: | , |
| In: | Acta Societatis Botanicorum Poloniae, 61, 2014, 2, S. 241-252 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
Polish Botanical Society
|
| Schlagwörter: |
| author_facet |
Białczyk, Jan Lechowski, Zbigniew Białczyk, Jan Lechowski, Zbigniew |
|---|---|
| author |
Białczyk, Jan Lechowski, Zbigniew |
| spellingShingle |
Białczyk, Jan Lechowski, Zbigniew Acta Societatis Botanicorum Poloniae Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini Plant Science |
| author_sort |
białczyk, jan |
| spelling |
Białczyk, Jan Lechowski, Zbigniew 2083-9480 Polish Botanical Society Plant Science http://dx.doi.org/10.5586/asbp.1992.022 <jats:p>The effect of different spectral ranges of light on the modification of transport processes in isolated parts of <i>Phaseolus coccineus</i> pulvini was analysed in a bath medium by determining the Ca<sup>2+</sup> and K<sup>+</sup> contents. After 1 h incubation of separated fragments of the extensor and flexor in solutions containing deionized water, medium, or medium with verapamil or nifedipine, the investigated material was irradiated with monochromatic light of different wavelengths. The concentration of Ca<sup>2+</sup>, K<sup>+</sup> and the pH value were determined in the medium. The obtained results suggest the occurrence of a specific coupling between the concentration of Ca<sup>2+</sup> and K<sup>+</sup> dependend on the wavelength of the applied light and part of the pulvinus. Certain spectral ranges of light brought about opposite effects on ion transport in opposite parts of the pulvinus. Changes in the pH of mediums containing isolated parts of the pulvini part to different effects of blue, red, and far-red light on the activity of H<sup>+</sup>-pumps located in the motor cells. The use of verapamil and nifedipine, specific Ca<sup>2+</sup>-channel blockers, made it possible to demonstrate the significant effect of Ca<sup>2+</sup> on the activity and functioning of K<sup>+</sup> -channels. The two types of inhibitors decreased the influx of Ca<sup>2+</sup> and K<sup>+</sup> to motor cells of the pulvini, however they did not limit the efflux of ions to the medium. The obtained results suggest that Ca<sup>2+</sup> ions take part in transduction of the light signal. It seems probable that the action of blue light is also mediated by part of the Ca<sup>2+</sup> ions.</jats:p> Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini Acta Societatis Botanicorum Poloniae |
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| title |
Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_unstemmed |
Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_full |
Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_fullStr |
Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_full_unstemmed |
Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_short |
Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_sort |
influence of different spectral ranges of light and ca2+ -channel blockers on ca2+ and k+ levels in phaseolus coccineus l. pulvini |
| topic |
Plant Science |
| url |
http://dx.doi.org/10.5586/asbp.1992.022 |
| publishDate |
2014 |
| physical |
241-252 |
| description |
<jats:p>The effect of different spectral ranges of light on the modification of transport processes in isolated parts of <i>Phaseolus coccineus</i> pulvini was analysed in a bath medium by determining the Ca<sup>2+</sup> and K<sup>+</sup> contents. After 1 h incubation of separated fragments of the extensor and flexor in solutions containing deionized water, medium, or medium with verapamil or nifedipine, the investigated material was irradiated with monochromatic light of different wavelengths. The concentration of Ca<sup>2+</sup>, K<sup>+</sup> and the pH value were determined in the medium. The obtained results suggest the occurrence of a specific coupling between the concentration of Ca<sup>2+</sup> and K<sup>+</sup> dependend on the wavelength of the applied light and part of the pulvinus. Certain spectral ranges of light brought about opposite effects on ion transport in opposite parts of the pulvinus. Changes in the pH of mediums containing isolated parts of the pulvini part to different effects of blue, red, and far-red light on the activity of H<sup>+</sup>-pumps located in the motor cells. The use of verapamil and nifedipine, specific Ca<sup>2+</sup>-channel blockers, made it possible to demonstrate the significant effect of Ca<sup>2+</sup> on the activity and functioning of K<sup>+</sup> -channels. The two types of inhibitors decreased the influx of Ca<sup>2+</sup> and K<sup>+</sup> to motor cells of the pulvini, however they did not limit the efflux of ions to the medium. The obtained results suggest that Ca<sup>2+</sup> ions take part in transduction of the light signal. It seems probable that the action of blue light is also mediated by part of the Ca<sup>2+</sup> ions.</jats:p> |
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| description | <jats:p>The effect of different spectral ranges of light on the modification of transport processes in isolated parts of <i>Phaseolus coccineus</i> pulvini was analysed in a bath medium by determining the Ca<sup>2+</sup> and K<sup>+</sup> contents. After 1 h incubation of separated fragments of the extensor and flexor in solutions containing deionized water, medium, or medium with verapamil or nifedipine, the investigated material was irradiated with monochromatic light of different wavelengths. The concentration of Ca<sup>2+</sup>, K<sup>+</sup> and the pH value were determined in the medium. The obtained results suggest the occurrence of a specific coupling between the concentration of Ca<sup>2+</sup> and K<sup>+</sup> dependend on the wavelength of the applied light and part of the pulvinus. Certain spectral ranges of light brought about opposite effects on ion transport in opposite parts of the pulvinus. Changes in the pH of mediums containing isolated parts of the pulvini part to different effects of blue, red, and far-red light on the activity of H<sup>+</sup>-pumps located in the motor cells. The use of verapamil and nifedipine, specific Ca<sup>2+</sup>-channel blockers, made it possible to demonstrate the significant effect of Ca<sup>2+</sup> on the activity and functioning of K<sup>+</sup> -channels. The two types of inhibitors decreased the influx of Ca<sup>2+</sup> and K<sup>+</sup> to motor cells of the pulvini, however they did not limit the efflux of ions to the medium. The obtained results suggest that Ca<sup>2+</sup> ions take part in transduction of the light signal. It seems probable that the action of blue light is also mediated by part of the Ca<sup>2+</sup> ions.</jats:p> |
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| spelling | Białczyk, Jan Lechowski, Zbigniew 2083-9480 Polish Botanical Society Plant Science http://dx.doi.org/10.5586/asbp.1992.022 <jats:p>The effect of different spectral ranges of light on the modification of transport processes in isolated parts of <i>Phaseolus coccineus</i> pulvini was analysed in a bath medium by determining the Ca<sup>2+</sup> and K<sup>+</sup> contents. After 1 h incubation of separated fragments of the extensor and flexor in solutions containing deionized water, medium, or medium with verapamil or nifedipine, the investigated material was irradiated with monochromatic light of different wavelengths. The concentration of Ca<sup>2+</sup>, K<sup>+</sup> and the pH value were determined in the medium. The obtained results suggest the occurrence of a specific coupling between the concentration of Ca<sup>2+</sup> and K<sup>+</sup> dependend on the wavelength of the applied light and part of the pulvinus. Certain spectral ranges of light brought about opposite effects on ion transport in opposite parts of the pulvinus. Changes in the pH of mediums containing isolated parts of the pulvini part to different effects of blue, red, and far-red light on the activity of H<sup>+</sup>-pumps located in the motor cells. The use of verapamil and nifedipine, specific Ca<sup>2+</sup>-channel blockers, made it possible to demonstrate the significant effect of Ca<sup>2+</sup> on the activity and functioning of K<sup>+</sup> -channels. The two types of inhibitors decreased the influx of Ca<sup>2+</sup> and K<sup>+</sup> to motor cells of the pulvini, however they did not limit the efflux of ions to the medium. The obtained results suggest that Ca<sup>2+</sup> ions take part in transduction of the light signal. It seems probable that the action of blue light is also mediated by part of the Ca<sup>2+</sup> ions.</jats:p> Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini Acta Societatis Botanicorum Poloniae |
| spellingShingle | Białczyk, Jan, Lechowski, Zbigniew, Acta Societatis Botanicorum Poloniae, Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini, Plant Science |
| title | Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_full | Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_fullStr | Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_full_unstemmed | Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_short | Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| title_sort | influence of different spectral ranges of light and ca2+ -channel blockers on ca2+ and k+ levels in phaseolus coccineus l. pulvini |
| title_unstemmed | Influence of different spectral ranges of light and Ca2+ -channel blockers on Ca2+ and K+ levels in Phaseolus coccineus L. pulvini |
| topic | Plant Science |
| url | http://dx.doi.org/10.5586/asbp.1992.022 |