cDNA cloning and characterization of tobacco ABC transporter: NtPDR1 is a novel elicitor‐responsive gene 1

FEBS Letters

Ichinose, Yuki¹  Shiraishi, Tomonori¹  Toyoda, Kazuhiro¹  Inagaki, Yoshishige¹  Sasabe, Michiko¹ 

[1] Laboratory of Plant Pathology and Genetic Engineering, Faculty of Agriculture, Okayama University, Tsushima-naka 1-1-1, Okayama 700-8530, Japan

关键词: ATP-binding cassette transporter;    Tobacco Bright Yellow-2;    Elicitin;    Elicitor;    Defense response;    ABA;    abscisic acid;    ABC;    ATP-binding cassette;    HR;    hypersensitive reaction;    LB;    Luria–Bertani;    MDR;    multidrug resistance;    MeJA;    methyl jasmonic acid;    MRP;    MDR-associated protein;    NBF;    nucleotide-binding fold;    NtPDR1;    Nicotiana tabacum PDR protein 1;    PAL;    phenylalanine ammonia-lyase;    PDR;    pleiotropic drug resistance;    PR;    pathogenesis-related;    RACE;    rapid amplification of the cDNA end;    SA;    salicylic acid;    TMD;    transmembrane domain;   

DOI  :  10.1016/S0014-5793(02)02697-2

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

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.

【 授权许可】

Unknown