cDNA cloning and characterization of tobacco ABC transporter: NtPDR1 is a novel elicitor-responsive gene.
FEBS Lett, 2002/5/08;518(1-3):164-8.
Sasabe M[1], Toyoda K, Shiraishi T, Inagaki Y, Ichinose Y
Affiliations
PMID: 11997039
Impact factor: 3.864
Abstract
We isolated an INF1 elicitin-inducible cDNA encoding a pleiotropic drug resistance (PDR)-type ATP-binding cassette (ABC) transporter homolog (NtPDR1) in suspension-cultured tobacco Bright Yellow-2 (BY-2) cells by application of differential display PCR. The NtPDR1 (Nicotiana tabacum PDR protein 1) gene also encodes a 162 kDa protein that includes two putative hydrophilic domains containing the ABC signature motif and two putative hydrophobic domains. Expression of the NtPDR1 gene was rapidly and strongly activated by treatment of BY-2 cells with INF1 elicitin. Further, treatment of BY-2 cells with flagellin, a bacterial proteinaceous hypersensitive reaction elicitor, or yeast extract, a general elicitor, also induced NtPDR1 gene expression. These results indicate that NtPDR1 may be involved in the general defense response in tobacco. This is the first report that microbial elicitors induce the expression of a plant ABC transporter gene.
MeSH terms
ATP-Binding Cassette Transporters; Algal Proteins; Amino Acid Sequence; Cells, Cultured; Cloning, Molecular; DNA, Complementary; Flagellin; Fungal Proteins; Gene Expression Regulation, Plant; Kinetics; Molecular Sequence Data; Plant Growth Regulators; Plant Proteins; Protein Structure, Tertiary; Proteins; RNA, Plant; Sequence Alignment; Nicotiana; Transcriptional Activation
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