Abstract
Inhibition of the activity of photosystem II (PSII) under strong light is referred to as photoinhibition. This phenomenon is due to the imbalance between the rate of photodamage to PSII and the rate of the repair of damaged PSII. Photodamage is initiated by the direct effects of light on the oxygen-evolving complex and, thus, photodamage to PSII is unavoidable. Studies of the effects of oxidative stress on photodamage and subsequent repair have revealed that reactive oxygen species (ROS) act primarily by inhibiting the repair of photodamaged PSII and not by damaging PSII directly. Thus, strong light has two distinct effects on PSII; it damages PSII directly and it inhibits the repair of PSII via production of ROS. Investigations of the ROS-induced inhibition of repair have demonstrated that ROS suppress the synthesis de novo of proteins and, in particular, of the D1 protein, that are required for the repair of PSII. Moreover, a primary target for inhibition by ROS appears to be the elongation step of translation. Inhibition of the repair of PSII by ROS is accelerated by the deceleration of the Calvin cycle that occurs when the availability of CO2 is limited. In this review, we present a new paradigm for the action of ROS in photoinhibition.
| Original language | English |
|---|---|
| Pages (from-to) | 742-749 |
| Number of pages | 8 |
| Journal | Biochimica et Biophysica Acta - Bioenergetics |
| Volume | 1757 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 1 2006 |
| Externally published | Yes |
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Keywords
- Photoinhibition
- Photosystem II
- Protein synthesis
- Reactive oxygen species
- Repair
ASJC Scopus subject areas
- Biophysics
- Biochemistry
- Cell Biology
Cite this
A new paradigm for the action of reactive oxygen species in the photoinhibition of photosystem II. / Nishiyama, Yoshitaka; Allakhverdiev, Suleyman; Murata, Norio.
In: Biochimica et Biophysica Acta - Bioenergetics, Vol. 1757, No. 7, 01.07.2006, p. 742-749.Research output: Contribution to journal › Review article
}
TY - JOUR
T1 - A new paradigm for the action of reactive oxygen species in the photoinhibition of photosystem II
AU - Nishiyama, Yoshitaka
AU - Allakhverdiev, Suleyman
AU - Murata, Norio
PY - 2006/7/1
Y1 - 2006/7/1
N2 - Inhibition of the activity of photosystem II (PSII) under strong light is referred to as photoinhibition. This phenomenon is due to the imbalance between the rate of photodamage to PSII and the rate of the repair of damaged PSII. Photodamage is initiated by the direct effects of light on the oxygen-evolving complex and, thus, photodamage to PSII is unavoidable. Studies of the effects of oxidative stress on photodamage and subsequent repair have revealed that reactive oxygen species (ROS) act primarily by inhibiting the repair of photodamaged PSII and not by damaging PSII directly. Thus, strong light has two distinct effects on PSII; it damages PSII directly and it inhibits the repair of PSII via production of ROS. Investigations of the ROS-induced inhibition of repair have demonstrated that ROS suppress the synthesis de novo of proteins and, in particular, of the D1 protein, that are required for the repair of PSII. Moreover, a primary target for inhibition by ROS appears to be the elongation step of translation. Inhibition of the repair of PSII by ROS is accelerated by the deceleration of the Calvin cycle that occurs when the availability of CO2 is limited. In this review, we present a new paradigm for the action of ROS in photoinhibition.
AB - Inhibition of the activity of photosystem II (PSII) under strong light is referred to as photoinhibition. This phenomenon is due to the imbalance between the rate of photodamage to PSII and the rate of the repair of damaged PSII. Photodamage is initiated by the direct effects of light on the oxygen-evolving complex and, thus, photodamage to PSII is unavoidable. Studies of the effects of oxidative stress on photodamage and subsequent repair have revealed that reactive oxygen species (ROS) act primarily by inhibiting the repair of photodamaged PSII and not by damaging PSII directly. Thus, strong light has two distinct effects on PSII; it damages PSII directly and it inhibits the repair of PSII via production of ROS. Investigations of the ROS-induced inhibition of repair have demonstrated that ROS suppress the synthesis de novo of proteins and, in particular, of the D1 protein, that are required for the repair of PSII. Moreover, a primary target for inhibition by ROS appears to be the elongation step of translation. Inhibition of the repair of PSII by ROS is accelerated by the deceleration of the Calvin cycle that occurs when the availability of CO2 is limited. In this review, we present a new paradigm for the action of ROS in photoinhibition.
KW - Photoinhibition
KW - Photosystem II
KW - Protein synthesis
KW - Reactive oxygen species
KW - Repair
UR - http://www.scopus.com/inward/record.url?scp=33746761616&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33746761616&partnerID=8YFLogxK
U2 - 10.1016/j.bbabio.2006.05.013
DO - 10.1016/j.bbabio.2006.05.013
M3 - Review article
C2 - 16784721
AN - SCOPUS:33746761616
VL - 1757
SP - 742
EP - 749
JO - Biochimica et Biophysica Acta - Bioenergetics
JF - Biochimica et Biophysica Acta - Bioenergetics
SN - 0005-2728
IS - 7
ER -