Exogenous thermospermine has an activity to induce a subset of the defense genes and restrict cucumber mosaic virus multiplication in Arabidopsis thaliana

G. H.M. Sagor, Hideki Takahashi, Masaru Niitsu, Yoshihiro Takahashi, Thomas Berberich, Tomonobu Kusano

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

We previously proposed the defensive role of a signal pathway triggered by the polyamine spermine (Spm) in the reaction against avirulent viral pathogens in Nicotiana tabacum and Arabidopsis thaliana. In this study, we showed that thermospermine (T-Spm), an isomer of Spm, is also active in inducing the expression of the genes involved in the Spm-signal pathway at a similar dose as Spm. Furthermore, we found that T-Spm enhances the expression of a subset of pathogenesis-related genes whose expression is induced during cucumber mosaic virus (CMV)-triggered hypersensitive response. In consistent with the above observation, we further showed that exogenous T-Spm can repress CMV multiplication with same efficiency as Spm. Key message: Polyamine thermospermine, an isomer of spermine, is able to induce a subset of hypersensitive response-related defense genes and can suppress cucumber mosaic virus multiplication in Arabidopsis thaliana.

Original languageEnglish
Pages (from-to)1227-1232
Number of pages6
JournalPlant Cell Reports
Volume31
Issue number7
DOIs
Publication statusPublished - 2012 Jul 1

Keywords

  • Arabidopsis thaliana
  • Cucumber mosaic virus
  • Polyamine
  • Signaling activity
  • Spermine
  • Thermospermine

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science

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