Oxidation of ion transporters induced by salt stress in higher plants

2012 Fiscal Year Final Research Report

• Project/Area Number: 22380044
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Plant nutrition/Soil science
• Research Institution: Okayama University
• Principal Investigator: MURATA Yoshiyuki 岡山大学, 大学院・環境生命科学研究科, 教授 (70263621)
• Project Period (FY): 2010 – 2012
• Keywords: 塩ストレス / イオン輸送 / 酸化 / タンパク質 / チャネル / パッチクランプ法 / 二電極膜電位固定法 / 修飾

Research Abstract

A number of ion transporters are involvedin uptake of nutrients from roots and gas exchange of stomata that are vital for higher plants to grow. Potassium channel is one of requisite channels that function on maintenance of ratio of potassium to sodium in salt-stressed plants. Environmental stresses induce oxidative stress to damage physiological function of plant cells. However, cellular mechanisms remain to be clarified. In this study, we examined effects of reactive oxygen species and aldehydes on plant potassium channels.

Research Products

• [Journal Article] Methylglyoxal modification of cytosolic ascorbate peroxidase from Nicotiana tabacum. (2012)
  • Author(s): Hoque, M. A., Uraji, M., Banu, M. N. A., Torii, A., Mori, I. C., Nakamura, Y. and Murata, Y.
  • Journal Title: J. Biochem. Mol. Toxicol. Volume: 26 Pages: 315-321
  • Peer Reviewed
• [Journal Article] Cytotoxic effects of methylglyoxal on seed germination and root elongation in Arabidopsis (2012)
  • Author(s): Hoque, T. S., Uraji, M., Aodengtuya, Nakamura, Y., and Murata, Y.
  • Journal Title: Plant Biol. Volume: 14 Pages: 854-858
  • Peer Reviewed
• [Journal Article] Methylglyoxal-induced stomatal closure and peroxidase-mediated ROS production in Arabidopsis (2012)
  • Author(s): Hoque, T. S., Uraji, M., Ye, W., Hossain, M. A., Nakamura, Y., and Murata, Y.
  • Journal Title: J. Plant Physiol. Volume: 169 Pages: 979-986
  • Peer Reviewed
• [Journal Article] Inhibitory effects of methylglyoxal on light-induced stomatal opening and inward K+ channel activity in Arabidopsis. (2012)
  • Author(s): Hoque, T. S., Okuma, E., Uraji, M., Furuichi T., Sasaki, T., Hoque, M. A., Nakamura, Y., and Murata, Y.
  • Journal Title: Biosci. Biotechnol. Biochem. Volume: 76 Pages: 617-619
  • Peer Reviewed
• [Journal Article] Effects of methylglyoxal on glutathione S-transferase from Nicotiana tabacum (2010)
  • Author(s): oque, M. A., Uraji, M., Banu, M. N. A., Mori, I. C., Nakamura, Y., and Murata, Y.
  • Journal Title: Biosci. Biotechnol. Biochem. Volume: 74 Pages: 2124-2126
  • Peer Reviewed
• [Presentation] Methylglyoxal induces stomatal closure accompanied by peroxidase-mediated ROS production in Arabidopsis (2012)
  • Author(s): Tahsina Sharmin Hoque、 裏地美杉、 Wenxiu Ye、中村宜督、 村田芳行
  • Organizer: 第32回日本農芸化学会中四国支部講演会
  • Place of Presentation: 鳥取
  • Year and Date: 20120100
• [Presentation] Physiological Functions of Methylglyoxal in Arabidopsis (2011)
  • Author(s): Tahsina Sharmin Hoque、裏地美杉、Mohammad Anowar Hossain、中村宜督、村田芳行
  • Organizer: 第29回日本農芸化学会中四国支部講演会
  • Place of Presentation: 徳島
  • Year and Date: 2011-01-22