Mechanical load induces upregulation of transcripts for a set of genes implicated in secondary wall formation in the supporting tissue of Arabidopsis thaliana

Kento Koizumi, Ryusuke Yokoyama, Kazuhiko Nishitani

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

We examined the effects of mechanical load on transcripts of a set of cell wall related genes that are implicated in the formation of supporting tissues, by applying a 50 mg strip of aluminum foil to the inflorescence stem of Arabidopsis thaliana, a weight roughly half the fresh weight of the stem. Transcript levels of 12 of the 15 genes examined were increased by load application, as were the levels of some transcription factors that regulate secondary wall formation. These findings support the involvement of a load-sensing system in regulation of supporting tissue formation via transcriptional regulation of cell wall related genes.

Original languageEnglish
Pages (from-to)651-659
Number of pages9
JournalJournal of Plant Research
Volume122
Issue number6
DOIs
Publication statusPublished - 2009 Oct

Keywords

  • Gene expression
  • Mechanical load
  • Secondary wall
  • Supporting tissue
  • Transcription

ASJC Scopus subject areas

  • Plant Science

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