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XB-ART-45056
Biosci Biotechnol Biochem 2012 Jan 01;763:617-9.
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Inhibitory effects of methylglyoxal on light-induced stomatal opening and inward K+ channel activity in Arabidopsis.

Hoque TS , Okuma E , Uraji M , Furuichi T , Sasaki T , Hoque MA , Nakamura Y , Murata Y .


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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.

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Species referenced: Xenopus laevis
Genes referenced: kyat1