甲基乙二醛对拟南芥光诱导气孔开放和内向钾离子通道活性的抑制作用。
Inhibitory effects of methylglyoxal on light-induced stomatal opening and inward K+ channel activity in Arabidopsis.
作者信息
Hoque Tahsina Sharmin, Okuma Eiji, Uraji Misugi, Furuichi Takuya, Sasaki Takayuki, Hoque Md Anamul, Nakamura Yoshimasa, Murata Yoshiyuki
机构信息
Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan.
出版信息
Biosci Biotechnol Biochem. 2012;76(3):617-9. doi: 10.1271/bbb.110885.
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.
甲基乙二醛（MG）是一种由糖酵解产生的活性醛。在拟南芥中，MG以剂量依赖的方式抑制光诱导的气孔开放。它显著抑制保卫细胞原生质体中的内向整流钾（K（in））通道以及在非洲爪蟾卵母细胞中异源表达的拟南芥K（in）通道KAT1。因此，MG对气孔开放的抑制似乎涉及MG对K⁺流入保卫细胞的抑制。
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