The AtNFXL1 gene encodes a NF-X1 type zinc finger protein required for growth under salt stress.
The human NF-X1 protein and homologous proteins in eukaryotes represent a class of transcription factors which are characterised by NF-X1 type zinc finger motifs. The Arabidopsis genome encodes two NF-X1 homologs, which we termed AtNFXL1 and AtNFXL2. Growth and survival was impaired in atnfxl1 knock-out mutants and AtNFXL1-antisense plants under salt stress in comparison to wild-type plants. In contrast, 35S: :AtNFXL1 plants showed higher survival rates. The AtNFXL2 protein potentially plays an antagonistic role. The Arabidopsis NF-X1 type zinc finger proteins likely are part of regulatory mechanisms, which protect major processes such as photosynthesis.
Lisso
Janina
J
Universität Potsdam, Institut für Biochemie und Biologie, Genetik, Karl-Liebknecht-Strasse 24-25, Haus 26, 14476 Golm, Germany.
Altmann
Thomas
T
Müssig
Carsten
C
D017360:Arabidopsis / Q000235:genetics / Q000254:growth & development / Q000378:metabolism; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism*; D004268:DNA-Binding Proteins / Q000235:genetics / Q000378:metabolism*; D003681:Dehydration; D018506:Gene Expression Regulation, Plant; D006801:Humans; D006861:Hydrogen Peroxide / Q000378:metabolism; D016877:Oxidants / Q000378:metabolism; D030821:Plants, Genetically Modified; D000071701:Regulatory Factor X Transcription Factors; D012492:Salts / Q000378:metabolism*; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism*; D016335:Zinc Fingers
D029681:Arabidopsis Proteins; D004268:DNA-Binding Proteins; D016877:Oxidants; D000071701:Regulatory Factor X Transcription Factors; D012492:Salts; D014157:Transcription Factors; D006861:Hydrogen Peroxide