Ammonium nutrition interacts with iron homeostasis in Brachypodium distachyon

Ammonium nutrition interacts with iron homeostasis in Brachypodium distachyon

© The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 73(2022), 1 vom: 05. Jan., Seite 263-274
1. Verfasser: De la Peña, Marlon (VerfasserIn)
Weitere Verfasser: Marín-Peña, Agustín Javier, Urmeneta, Leyre, Coleto, Inmaculada, Castillo-González, Jorge, van Liempd, Sebastiaan M, Falcón-Pérez, Juan M, Álvarez-Fernández, Ana, González-Moro, María Begoña, Marino, Daniel
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Brachypodium Ammonium iron metabolism methionine nitrate nitrogen phytosiderophores mehr... root Ammonium Compounds Iron E1UOL152H7
Beschreibung
Zusammenfassung:© The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
Most plant species develop stress symptoms when exposed to high ammonium (NH4+) concentrations. The root is the first organ in contact with high NH4+ and therefore the first barrier to cope with ammonium stress. In this work, we focused on root adaptation to ammonium nutrition in the model plant Brachypodium distachyon. Proteome analysis revealed changes associated with primary metabolism, cell wall remodelling, and redox homeostasis. In addition, it showed a strong induction of proteins related to methionine (Met) metabolism and phytosiderophore (PS) synthesis in ammonium-fed plants. In agreement with this, we show how ammonium nutrition impacts Met/S-adenosyl-Met and PS metabolic pathways together with increasing root iron content. Nevertheless, ammonium-fed plants displayed higher sensitivity to iron deficiency, suggesting that ammonium nutrition triggers impaired iron utilization and root to shoot transport, which entailed an induction in iron-related responses. Overall, this work demonstrates the importance of iron homeostasis during ammonium nutrition and paves a new way to better understand and improve ammonium use efficiency and tolerance
Beschreibung:Date Completed 27.01.2022
Date Revised 27.01.2022
published: Print
Citation Status MEDLINE
ISSN:1460-2431
DOI:10.1093/jxb/erab427