Methylglyoxal induces inhibition of growth, accumulation of anthocyanin, and activation of glyoxalase I and II in Arabidopsis thaliana. Issue 7 (24th January 2017)

• Record Type: Journal Article
• Authors: Hoque, Tahsina Sharmin; Uraji, Misugi; Hoque, Md. Anamul; Nakamura, Yoshimasa; Murata, Yoshiyuki
• Is Part Of: Journal of biochemical and molecular toxicology. Volume 31:Issue 7(2017)
• Page Start: N/A
• Page End: N/A
• Publication Date: 2017-01-24
• Subjects: Arabidopsis thaliana -- anthocyanin accumulation -- glyoxalase activity -- methylglyoxal -- seedling growth; Biochemistry -- Periodicals; Molecular biology -- Periodicals; Toxicology -- Periodicals; 574
• DOI: 10.1002/jbt.21901
• Languages: English
• ISSNs: 1095-6670

Abstract

Abstract: Methylglyoxal (MG) is a highly reactive stress‐related α‐ketoaldehyde and a physiological metabolite of glycolysis, which is accumulated in ample amount under stressful conditions. In the present study, the effect of different doses of MG on growth, anthocyanin production, MG contents, and activities of two types of glyoxalases (glyoxalase I and glyoxalase II) were examined in Arabidopsis seedlings. MG at 0.1 mM dose did not affect seedling growth, anthocyanin accumulation, MG contents, or activities of glyoxalases, whereas MG at 0.5 mM and 1 mM inhibited seedling growth and induced anthocyanin accumulation, MG accumulation, and glyoxalase (both I and II) activation. Therefore, MG can reduce plant growth as a toxic molecule and can stimulate stress responses as a signal molecule under stress conditions.