title: Methylglyoxal induces inhibition of growth, accumulation of anthocyanin, and activation of glyoxalase I and II in Arabidopsis thaliana.
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.
authors.affiliation: Department of Soil Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh.|Graduate School of Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan.
authors.forename: Tahsina Sharmin
authors.initials: TS
authors.lastname: Hoque
authors.affiliation: Graduate School of Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan.
authors.forename: Misugi
authors.initials: M
authors.lastname: Uraji
authors.affiliation: Department of Soil Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh.|Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan.
authors.forename: Md Anamul
authors.initials: MA
authors.lastname: Hoque
authors.affiliation: Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan.
authors.forename: Yoshimasa
authors.initials: Y
authors.lastname: Nakamura
authors.affiliation: Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan.
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Murata
mesh_terms: D000872:Anthocyanins / Q000096:biosynthesis*; D017360:Arabidopsis / Q000378:metabolism*; D029681:Arabidopsis Proteins / Q000378:metabolism*; D004789:Enzyme Activation / Q000187:drug effects; D007791:Lactoylglutathione Lyase / Q000378:metabolism*; D011765:Pyruvaldehyde / Q000494:pharmacology*; D036226:Seedlings / Q000378:metabolism*; D013869:Thiolester Hydrolases / Q000378:metabolism*; D000099301:Hydroxyacylglutathione Hydrolase
chemical_list: D000872:Anthocyanins; D029681:Arabidopsis Proteins; D007791:Lactoylglutathione Lyase; D011765:Pyruvaldehyde; D013869:Thiolester Hydrolases; D000099301:Hydroxyacylglutathione Hydrolase
keywords: Arabidopsis thaliana; anthocyanin accumulation; glyoxalase activity; methylglyoxal; seedling growth