Change search
ReferencesLink to record
Permanent link

Direct link
Crosstalk between Two bZIP Signaling Pathways Orchestrates Salt-Induced Metabolic Reprogramming in Arabidopsis Roots
Show others and affiliations
2015 (English)In: The Plant Cell, ISSN 1040-4651, E-ISSN 1532-298X, Vol. 27, no 8, 2244-2260 p.Article in journal (Refereed) Published
Abstract [en]

Soil salinity increasingly causes crop losses worldwide. Although roots are the primary targets of salt stress, the signaling networks that facilitate metabolic reprogramming to induce stress tolerance are less understood than those in leaves. Here, a combination of transcriptomic and metabolic approaches was performed in salt-treated Arabidopsis thaliana roots, which revealed that the group S1 basic leucine zipper transcription factors bZIP1 and bZIP53 reprogram primary C- and N-metabolism. In particular, gluconeogenesis and amino acid catabolism are affected by these transcription factors. Importantly, bZIP1 expression reflects cellular stress and energy status in roots. In addition to the well-described abiotic stress response pathway initiated by the hormone abscisic acid (ABA) and executed by SnRK2 (Snf1-RELATED-PROTEIN-KINASE2) and AREB-like bZIP factors, we identify a structurally related ABA-independent signaling module consisting of SnRK1s and S1 bZIPs. Crosstalk between these signaling pathways recruits particular bZIP factor combinations to establish at least four distinct gene expression patterns. Understanding this signaling network provides a framework for securing future crop productivity.

Place, publisher, year, edition, pages
American Society of Plant Biologists , 2015. Vol. 27, no 8, 2244-2260 p.
National Category
Biochemistry and Molecular Biology Cell Biology Plant Biotechnology
URN: urn:nbn:se:umu:diva-109948DOI: 10.1105/tpc.15.00163ISI: 000361176000014PubMedID: 26276836OAI: diva2:860870
Available from: 2015-10-14 Created: 2015-10-09 Last updated: 2015-10-14Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Hanson, Johannes
By organisation
Department of Plant PhysiologyUmeå Plant Science Centre (UPSC)
In the same journal
The Plant Cell
Biochemistry and Molecular BiologyCell BiologyPlant Biotechnology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 59 hits
ReferencesLink to record
Permanent link

Direct link