The influence of potassium and calcium ions on nitrogen metabolism of cucumber seedlings
It was found that K+ or Ca2+ deficiency in a nitrate or ammonium medium increased the amount of accumulated total and non-protein nitrogen in some organs of cucumber seedlings, as also caused changes in accumulated potassium and calcium. Lack of K+ or Ca2+ in a medium which did not contain nitrogen...
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| Format: | Article |
| Language: | English |
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Polish Botanical Society
2014-01-01
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| Series: | Acta Societatis Botanicorum Poloniae |
| Online Access: | https://pbsociety.org.pl/journals/index.php/asbp/article/view/3288 |
| _version_ | 1818415731174277120 |
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| author | Genowefa Kubik-Dobosz |
| author_facet | Genowefa Kubik-Dobosz |
| author_sort | Genowefa Kubik-Dobosz |
| collection | DOAJ |
| description | It was found that K+ or Ca2+ deficiency in a nitrate or ammonium medium increased the amount of accumulated total and non-protein nitrogen in some organs of cucumber seedlings, as also caused changes in accumulated potassium and calcium. Lack of K+ or Ca2+ in a medium which did not contain nitrogen led to an increased level of glutamate dehydrogenase, alanine aminotransferase and aspartate aminotransferase activity in the cotyledons and roots of cucumbers. Similar changes in the activity of these enzymes were noted in certain organs of seedlings growing in nitrate or ammonium medium with decreased K+ or Ca2+ contents, although the magnitude of these changes depended upon the applied dosage of these cations, the form of mineral nitrogen, developmental phase of plants and the plant organ dealt with. |
| first_indexed | 2024-12-14T11:39:39Z |
| format | Article |
| id | doaj.art-2b5ed7f60c4448ee8d56a3e42e349934 |
| institution | Directory Open Access Journal |
| issn | 2083-9480 |
| language | English |
| last_indexed | 2024-12-14T11:39:39Z |
| publishDate | 2014-01-01 |
| publisher | Polish Botanical Society |
| record_format | Article |
| series | Acta Societatis Botanicorum Poloniae |
| spelling | doaj.art-2b5ed7f60c4448ee8d56a3e42e3499342022-12-21T23:02:53ZengPolish Botanical SocietyActa Societatis Botanicorum Poloniae2083-94802014-01-0150343744710.5586/asbp.1981.0672766The influence of potassium and calcium ions on nitrogen metabolism of cucumber seedlingsGenowefa Kubik-Dobosz0Wrocław UniversityIt was found that K+ or Ca2+ deficiency in a nitrate or ammonium medium increased the amount of accumulated total and non-protein nitrogen in some organs of cucumber seedlings, as also caused changes in accumulated potassium and calcium. Lack of K+ or Ca2+ in a medium which did not contain nitrogen led to an increased level of glutamate dehydrogenase, alanine aminotransferase and aspartate aminotransferase activity in the cotyledons and roots of cucumbers. Similar changes in the activity of these enzymes were noted in certain organs of seedlings growing in nitrate or ammonium medium with decreased K+ or Ca2+ contents, although the magnitude of these changes depended upon the applied dosage of these cations, the form of mineral nitrogen, developmental phase of plants and the plant organ dealt with.https://pbsociety.org.pl/journals/index.php/asbp/article/view/3288 |
| spellingShingle | Genowefa Kubik-Dobosz The influence of potassium and calcium ions on nitrogen metabolism of cucumber seedlings Acta Societatis Botanicorum Poloniae |
| title | The influence of potassium and calcium ions on nitrogen metabolism of cucumber seedlings |
| title_full | The influence of potassium and calcium ions on nitrogen metabolism of cucumber seedlings |
| title_fullStr | The influence of potassium and calcium ions on nitrogen metabolism of cucumber seedlings |
| title_full_unstemmed | The influence of potassium and calcium ions on nitrogen metabolism of cucumber seedlings |
| title_short | The influence of potassium and calcium ions on nitrogen metabolism of cucumber seedlings |
| title_sort | influence of potassium and calcium ions on nitrogen metabolism of cucumber seedlings |
| url | https://pbsociety.org.pl/journals/index.php/asbp/article/view/3288 |
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