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

Michiko Sasabe, Kazuhiro Toyoda, Tomonori Shiraishi, Yoshishige Inagaki, Yuki Ichinose

Research output: Contribution to journalArticle

70 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)164-168
Number of pages5
JournalFEBS Letters
Volume518
Issue number1-3
DOIs
Publication statusPublished - May 8 2002

Keywords

  • ATP-binding cassette transporter
  • Defense response
  • Elicitin
  • Elicitor
  • Tobacco Bright Yellow-2

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

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