Biomaterial Database

An RNA chaperone, AtCSP2, negatively regulates salt stress tolerance. 2015

Kentaro Sasaki, and Yuelin Liu, and Myung-Hee Kim, and Ryozo Imai

a Hokkaido Agricultural Research Center (HARC); National Agriculture and Food Research Organization (NARO) ; Toyohira-ku, Sapporo , Japan.

Cold shock domain (CSD) proteins are RNA chaperones that destabilize RNA secondary structures. Arabidopsis Cold Shock Domain Protein 2 (AtCSP2), one of the 4 CSD proteins (AtCSP1-AtCSP4) in Arabidopsis, is induced during cold acclimation but negatively regulates freezing tolerance. Here, we analyzed the function of AtCSP2 in salt stress tolerance. A double mutant, with reduced AtCSP2 and no AtCSP4 expression (atcsp2-3 atcsp4-1), displayed higher survival rates after salt stress. In addition, overexpression of AtCSP2 resulted in reduced salt stress tolerance. These data demonstrate that AtCSP2 acts as a negative regulator of salt stress tolerance in Arabidopsis.

UI	MeSH Term	Description	Entries
D003080	Cold Temperature	An absence of warmth or heat or a temperature notably below an accustomed norm.	Cold,Cold Temperatures,Temperature, Cold,Temperatures, Cold
D012965	Sodium Chloride	A ubiquitous sodium salt that is commonly used to season food.	Sodium Chloride, (22)Na,Sodium Chloride, (24)NaCl
D016601	RNA-Binding Proteins	Proteins that bind to RNA molecules. Included here are RIBONUCLEOPROTEINS and other proteins whose function is to bind specifically to RNA.	Double-Stranded RNA-Binding Protein,Double-Stranded RNA-Binding Proteins,ds RNA-Binding Protein,RNA-Binding Protein,ds RNA-Binding Proteins,Double Stranded RNA Binding Protein,Double Stranded RNA Binding Proteins,Protein, Double-Stranded RNA-Binding,Protein, ds RNA-Binding,RNA Binding Protein,RNA Binding Proteins,RNA-Binding Protein, Double-Stranded,RNA-Binding Protein, ds,RNA-Binding Proteins, Double-Stranded,ds RNA Binding Protein
D017343	Genes, Plant	The functional hereditary units of PLANTS.	Plant Genes,Gene, Plant,Plant Gene
D017360	Arabidopsis	A plant genus of the family BRASSICACEAE that contains ARABIDOPSIS PROTEINS and MADS DOMAIN PROTEINS. The species A. thaliana is used for experiments in classical plant genetics as well as molecular genetic studies in plant physiology, biochemistry, and development.	Arabidopsis thaliana,Cress, Mouse-ear,A. thaliana,A. thalianas,Arabidopses,Arabidopsis thalianas,Cress, Mouse ear,Cresses, Mouse-ear,Mouse-ear Cress,Mouse-ear Cresses,thaliana, A.,thaliana, Arabidopsis,thalianas, A.
D055049	Salt Tolerance	The ability of organisms to sense and adapt to high concentrations of salt in their growth environment.	Salt-Tolerance,Saline-Tolerance,Salinity Tolerance,Salt Adaptation,Salt Adaption,Salt-Adaption,Adaptation, Salt,Adaption, Salt,Saline Tolerance,Salinity Tolerances,Salt Adaptations,Salt Adaptions,Salt Tolerances,Tolerance, Salinity,Tolerance, Salt
D057773	Cold Shock Proteins and Peptides	Cellular proteins and peptides that are induced in response to cold stress. They are found in a broad variety of prokaryotic and eukaryotic organisms.	Cold Shock Peptide,Cold Shock Protein,Cold Stress Peptide,Cold Stress Protein,Cold Shock Peptides,Cold Shock Proteins,Cold Stress Peptides,Cold Stress Proteins,Cold Stress Proteins and Peptides,Peptide, Cold Shock,Peptide, Cold Stress,Protein, Cold Shock,Protein, Cold Stress,Shock Peptide, Cold,Shock Peptides, Cold,Shock Protein, Cold,Shock Proteins, Cold,Stress Peptide, Cold,Stress Peptides, Cold,Stress Protein, Cold,Stress Proteins, Cold
D018506	Gene Expression Regulation, Plant	Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action in plants.	Plant Gene Expression Regulation,Regulation of Gene Expression, Plant,Regulation, Gene Expression, Plant
D018749	RNA, Plant	Ribonucleic acid in plants having regulatory and catalytic roles as well as involvement in protein synthesis.	Plant RNA
D018832	Molecular Chaperones	A family of cellular proteins that mediate the correct assembly or disassembly of polypeptides and their associated ligands. Although they take part in the assembly process, molecular chaperones are not components of the final structures.	Chaperones, Molecular,Chaperone, Molecular,Molecular Chaperone