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240515s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2024.154264
|2 doi
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|a pubmed24n1436.xml
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|a DE-627
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|a eng
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| 100 |
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|a Wdowiak, Agata
|e verfasserin
|4 aut
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|a Ammonium nutrition modifies cellular calcium distribution influencing ammonium-induced growth inhibition
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 09.06.2024
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|a Date Revised 09.06.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier GmbH. All rights reserved.
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|a Proper plant growth requires balanced nutrient levels. In this study, we analyzed the relationship between ammonium (NH4+) nutrition and calcium (Ca2+) homeostasis in the leaf tissues of wild-type and mutant Arabidopsis specimens provided with different nitrogen sources (NH4+ and nitrate, NO3-). Providing plants with NH4+ as the sole nitrogen source disrupts Ca2+ homeostasis, which is essential for activating signaling pathways and maintaining the cell wall structure. The results revealed that the lower Ca2+ content in Arabidopsis leaves under NH4+ stress might result from reduced transpiration pull, which could impair root-to-shoot Ca2+ transport. Moreover, NH4+ nutrition increased the expression of genes encoding proteins responsible for exporting Ca2+ from the cytosol of leaf cells. Furthermore, overexpression of the Ca2+/H+ antiporter 1 (CAX1) gene alleviates the effects of NH4+ syndrome, including stunted growth. The oeCAX1 plants, characterized by a lower apoplastic Ca2+ level, grew better under NH4+ stress than wild-type plants. Evaluation of the mechanical properties of the leaf blades, including stiffness, strength, toughness, and extensibility, showed that the wild-type and oeCAX1 plants responded differently to the nitrogen source, highlighting the role of cell wall metabolism in inhibiting the growth of NH4+-stressed plants
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|a Journal Article
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|a Ammonium stress
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|a Ca(2+) homeostasis
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|a Cell wall properties
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|a Cellular Ca(2+) localization
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|a Ammonium Compounds
|2 NLM
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|a Calcium
|2 NLM
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| 650 |
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|a SY7Q814VUP
|2 NLM
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| 700 |
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|a Kryzheuskaya, Katsiaryna
|e verfasserin
|4 aut
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|a Podgórska, Anna
|e verfasserin
|4 aut
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| 700 |
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|a Paterczyk, Bohdan
|e verfasserin
|4 aut
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| 700 |
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|a Zebrowski, Jacek
|e verfasserin
|4 aut
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| 700 |
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|a Archacki, Rafał
|e verfasserin
|4 aut
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| 700 |
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|a Szal, Bożena
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 298(2024) vom: 15. Juni, Seite 154264
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:298
|g year:2024
|g day:15
|g month:06
|g pages:154264
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|u http://dx.doi.org/10.1016/j.jplph.2024.154264
|3 Volltext
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