TY - JOUR
T1 - Photoinhibition of photosystem I
T2 - Its physiological significance in the chilling sensitivity of plants
AU - Sonoike, Kintake
PY - 1996/4
Y1 - 1996/4
N2 - 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 to vivo.
AB - 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 to vivo.
KW - Chilling sensitivity
KW - Environmental stress
KW - Photoinhibition
KW - Photosynthesis
KW - Photosystem I
KW - Reactive species of oxygen
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U2 - 10.1093/oxfordjournals.pcp.a028938
DO - 10.1093/oxfordjournals.pcp.a028938
M3 - Review article
AN - SCOPUS:0000968916
VL - 37
SP - 239
EP - 247
JO - Plant and Cell Physiology
JF - Plant and Cell Physiology
SN - 0032-0781
IS - 3
ER -