Photoinhibition of Photosystem I: Its Physiological Significance in the Chilling Sensitivity of Plants :

• Sonoike,Kintake

  Department of Biological Sciences, Graduate School of Science,University of Tokyo

抄録

Photoinhibition was defined originally as the decrease in photosynthetic activity that occurs upon excess illumination. The site of photoinhibition has generally been considered to be located in PSII. However, a novel type of photoinhibition has recently been characterized in chilling-sensitive plants. This photoinhibition occurs under relatively weak illumination at chilling temperatures and the main site of damage is in PSI. The photoinhibition of PSI is initiated by the inactivation of the acceptor side, with the subsequent destruction of the reaction center and the degradation of the product of the psaB gene, which is one of the two major subunit polypeptides of the PSI reaction center complex. Chilling and oxidative stress (the presence of reactive species of oxygen) are characteristic requirements for the photoinhibition of PSI in vivo.

収録刊行物

• Plant and cell physiology

  Plant and cell physiology 37 (3), 239-247,

  Japanese Society of Plant Physiologists

キーワード

• Chilling sensitivity-Environmental stress-Photoinhibition-Photosynthesis-Photosystem I-Reactive species of oxygen.

詳細情報

• CRID: 1542543045197657984
• NII論文ID: 110003720813
• NII書誌ID: AA0077511X
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10771841
• 本文言語コード: en
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