Ectopic expression of Expansin3 or Expansinβ1 causes enhanced hormone and salt stress sensitivity in Arabidopsis

Ye Rim Kwon, Hee Jin Lee, Kyoung Heon Kim, Suk Whan Hong, Sung Joon Lee, Hojoung Lee

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Expansins are cell wall loosening proteins that appear to permit the microfibril matrix network to slide in growing plant cell walls, thereby enabling the wall to expand. To scrutinize possible impacts on plant growth and development when expansins are over-expressed, we characterized phenotypic alterations of the transgenic plants that constitutively expressed AtEXP3 or AtEXP-β1 under control of 35S-CaMV promoter. Our results suggest that both AtEXP3-OX and AtXPβ1-OX are very sensitive to salt stress. However, the mechanisms underlying their enhanced salt sensitivity appear to be different.

Original languageEnglish
Pages (from-to)1281-1288
Number of pages8
JournalBiotechnology letters
Volume30
Issue number7
DOIs
Publication statusPublished - 2008 Jul

Keywords

  • Arabidopsis thaliana
  • COR genes
  • Ethylene
  • Expansin
  • IAA genes
  • Salt stress

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology

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