Inhibitory effects of methylglyoxal on light-induced stomatal opening and inward K + channel activity in arabidopsis

Tahsina Sharmin Hoque, Eiji Okuma, Misugi Uraji, Takuya Furuichi, Takayuki Sasaki, Md Anamul Hoque, Yoshimasa Nakamura, Yoshiyuki Murata

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Methylglyoxal (MG) is a reactive aldehyde derived by glycolysis. In Arabidopsis, MG inhibited light-induced stomatal opening in a dose-dependent manner. It significantly inhibited both inward-rectifying potassium (K in) channels in guard-cell protoplasts and an Arabidopsis K in channel, KAT1, heterologously expressed in Xenopus oocytes. Thus it appears that MG inhibition of stomatal opening involves MG inhibition of K + influx into guard cells.

Original languageEnglish
Pages (from-to)617-619
Number of pages3
JournalBioscience, Biotechnology and Biochemistry
Volume76
Issue number3
DOIs
Publication statusPublished - Apr 2 2012

Keywords

  • Arabidopsis
  • Inwardrectifying potassium channel
  • KAT1
  • Methylglyoxal
  • Stomatal opening

ASJC Scopus subject areas

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry

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