title: Wheat NF-YA10 functions independently in salinity and drought stress.
abstract: The transcription factor NUCLEAR FACTOR Y (NF-Y) plays an essential role in many developmental and stress-responsive processes in plants. NF-Y composed of 3 subunits, NF-YA, NF-YB, and NF-YC, targets the CCAAT box, a common cis-element in eukaryotic promoters. We recently identified a gene TaNF-YA10-1 from the wheat salinity tolerant cultivar SR3 and found that recombinant TaNF-YA10-1 could successfully bind to the CCAAT motif in vitro. We also showed that the constitutive expression of TaNF-YA10-1 in Arabidopsis thaliana significantly increased the plant's sensitivity to salinity. Here, we further demonstrated that TaNF-YA10-1 -overexpressing plants conferred drought tolerance as judged from the relative root length and whole-plant growth under drought stress. These results suggest that TaNF-YA10-1 functions independently in salinity and drought stress. Our findings are helpful in understanding the distinct roles of NF-YA in plant stress responses.
authors.affiliation: a The Key Laboratory of Plant Cell Engineering and Germplasm Innovation; Ministry of Education; School of Life Science; Shandong University ; Jinan , PR China.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Ma
authors.forename: Chunlong
authors.initials: C
authors.lastname: Li
authors.forename: Mei
authors.initials: M
authors.lastname: Wang
mesh_terms: D000222:Adaptation, Physiological / Q000235:genetics; D017360:Arabidopsis / Q000235:genetics / Q000378:metabolism; D023081:CCAAT-Binding Factor / Q000235:genetics* / Q000378:metabolism; D055864:Droughts; D018506:Gene Expression Regulation, Plant; D005838:Genotype; D008353:Mannitol / Q000494:pharmacology; D009997:Osmotic Pressure; D010641:Phenotype; D018515:Plant Leaves / Q000187:drug effects / Q000235:genetics / Q000378:metabolism; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D018517:Plant Roots / Q000187:drug effects / Q000235:genetics / Q000378:metabolism; D020033:Protein Isoforms / Q000235:genetics / Q000378:metabolism; D021122:Protein Subunits / Q000235:genetics* / Q000378:metabolism; D054712:Salinity; D012965:Sodium Chloride / Q000494:pharmacology; D013312:Stress, Physiological; D014908:Triticum / Q000187:drug effects / Q000235:genetics* / Q000378:metabolism
chemical_list: D023081:CCAAT-Binding Factor; D010940:Plant Proteins; D020033:Protein Isoforms; D021122:Protein Subunits; D008353:Mannitol; D012965:Sodium Chloride
keywords: NF-Y transcription factor, salinity stress; SR3; drought stress; wheat