Crosstalk between Two bZIP Signaling Pathways Orchestrates Salt-Induced Metabolic Reprogramming in Arabidopsis Roots. Hartmann, L., Pedrotti, L., Weiste, C., Fekete, A., Schierstaedt, J., Gottler, J., Kempa, S., Krischke, M., Dietrich, K., Mueller, M. J., Vicente-Carbajosa, J., Hanson, J., & Droge-Laser, W. Plant Cell, 27(8):2244–60, August, 2015. Edition: 2015/08/16
Crosstalk between Two bZIP Signaling Pathways Orchestrates Salt-Induced Metabolic Reprogramming in Arabidopsis Roots [link]Paper  doi  abstract   bibtex   2 downloads  
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.
@article{hartmann_crosstalk_2015,
	title = {Crosstalk between {Two} {bZIP} {Signaling} {Pathways} {Orchestrates} {Salt}-{Induced} {Metabolic} {Reprogramming} in {Arabidopsis} {Roots}},
	volume = {27},
	issn = {1532-298X (Electronic) 1040-4651 (Linking)},
	url = {https://www.ncbi.nlm.nih.gov/pubmed/26276836},
	doi = {10.1105/tpc.15.00163},
	abstract = {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.},
	language = {en},
	number = {8},
	urldate = {2021-06-07},
	journal = {Plant Cell},
	author = {Hartmann, L. and Pedrotti, L. and Weiste, C. and Fekete, A. and Schierstaedt, J. and Gottler, J. and Kempa, S. and Krischke, M. and Dietrich, K. and Mueller, M. J. and Vicente-Carbajosa, J. and Hanson, J. and Droge-Laser, W.},
	month = aug,
	year = {2015},
	note = {Edition: 2015/08/16},
	keywords = {Abscisic Acid/pharmacology, Amino Acids/metabolism, Arabidopsis Proteins/*genetics/metabolism, Arabidopsis/drug effects/*genetics/metabolism, Basic-Leucine Zipper Transcription Factors/*genetics/metabolism, Calcium/metabolism, Carbohydrate Metabolism/drug effects/genetics, Gene Expression Regulation, Plant/drug effects, Gluconeogenesis/drug effects/genetics, Immunoblotting, Mutation, Plant Growth Regulators/pharmacology, Plant Roots/drug effects/genetics/metabolism, Promoter Regions, Genetic/genetics, Protein Binding/drug effects, Protein-Serine-Threonine Kinases, Reverse Transcriptase Polymerase Chain Reaction, Salt-Tolerant Plants/drug effects/genetics/metabolism, Signal Transduction/drug effects/*genetics, Sodium Chloride/pharmacology, Transcriptome/drug effects/genetics},
	pages = {2244--60},
}
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