Flash-Induced Relaxation Changes of the EPR Signals from the Manganese Cluster and YDReveal a Light-Adaptation Process of Photosystem II†

Biochemistry ◽  
2003 ◽  
Vol 42 (9) ◽  
pp. 2748-2758 ◽  
Author(s):  
Sindra Peterson ◽  
Karin A. Åhrling ◽  
Joakim E. P. Högblom ◽  
Stenbjörn Styring
Keyword(s):  
Photosystem Ii ◽  
Light Adaptation ◽  
Adaptation Process ◽  
Manganese Cluster

Ligand Environment of the S2State of Photosystem II: A Study of the Hyperfine Interactions of the Tetranuclear Manganese Cluster by 2D14N HYSCORE Spectroscopy

2010 ◽  
Vol 114 (33) ◽  
pp. 10905-10911 ◽  
Author(s):  
Sergey Milikisiyants ◽  
Ruchira Chatterjee ◽  
Amanda Weyers ◽  
Ashley Meenaghan ◽  
Christopher Coates ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Hyperfine Interactions ◽  
Manganese Cluster ◽  
Ligand Environment

scholarly journals PSB27: A thylakoid protein enabling Arabidopsis to adapt to changing light intensity

2015 ◽  
Vol 112 (5) ◽  
pp. 1613-1618 ◽  
Author(s):  
Xin Hou ◽  
Aigen Fu ◽  
Veder J. Garcia ◽  
Bob B. Buchanan ◽  
Sheng Luan
Keyword(s):  
Photosystem Ii ◽  
Light Intensity ◽  
Light Adaptation ◽  
Light Exposure ◽  
Starch Accumulation ◽  
State Transitions ◽  
Potential Candidate ◽  
Subsequent Work ◽  
Variable Intensity ◽  
Changing Light

In earlier studies we have identified FKBP20-2 and CYP38 as soluble proteins of the chloroplast thylakoid lumen that are required for the formation of photosystem II supercomplexes (PSII SCs). Subsequent work has identified another potential candidate functional in SC formation (PSB27). We have followed up on this possibility and isolated mutants defective in the PSB27 gene. In addition to lack of PSII SCs, mutant plants were severely stunted when cultivated with light of variable intensity. The stunted growth was associated with lower PSII efficiency and defective starch accumulation. In response to high light exposure, the mutant plants also displayed enhanced ROS production, leading to decreased biosynthesis of anthocyanin. Unexpectedly, we detected a second defect in the mutant, namely in CP26, an antenna protein known to be required for the formation of PSII SCs that has been linked to state transitions. Lack of PSII SCs was found to be independent of PSB27, but was due to a mutation in the previously described cp26 gene that we found had no effect on light adaptation. The present results suggest that PSII SCs, despite being required for state transitions, are not associated with acclimation to changing light intensity. Our results are consistent with the conclusion that PSB27 plays an essential role in enabling plants to adapt to fluctuating light intensity through a mechanism distinct from photosystem II supercomplexes and state transitions.

Light-Adaptation of Photosystem II Is Mediated by the Plastoquinone Pool†

Biochemistry ◽  
2003 ◽  
Vol 42 (25) ◽  
pp. 7655-7662 ◽  
Author(s):  
Karin A. Åhrling ◽  
Sindra Peterson
Keyword(s):  
Photosystem Ii ◽  
Light Adaptation ◽  
Plastoquinone Pool

Multifrequency High-Field EPR Study of the Interaction between the Tyrosyl Z Radical and the Manganese Cluster in Plant Photosystem II

1999 ◽  
Vol 103 (49) ◽  
pp. 10945-10954 ◽  
Author(s):  
Pierre Dorlet ◽  
Alain Boussac ◽  
A. William Rutherford ◽  
Sun Un
Keyword(s):  
Photosystem Ii ◽  
High Field ◽  
Manganese Cluster

scholarly journals Interaction of methanol with the oxygen-evolving complex: atomistic models, channel identification, species dependence, and mechanistic implications

2016 ◽  
Vol 7 (10) ◽  
pp. 6463-6476 ◽  
Author(s):  
Marius Retegan ◽  
Dimitrios A. Pantazis
Keyword(s):  
Photosystem Ii ◽  
Active Site ◽  
Quantum Chemical ◽  
Oxygen Evolving Complex ◽  
Manganese Cluster ◽  
Channel Identification ◽  
Atomistic Models ◽  
Chemical Studies ◽  
Quantum Chemical Studies ◽  
Oxygen Evolving

Spectroscopy-oriented quantum chemical studies establish how methanol is delivered to the water-oxidizing active site of Photosystem II and how it interacts with the manganese cluster.

Histidine 332 of the D1 Polypeptide Modulates the Magnetic and Redox Properties of the Manganese Cluster and Tyrosine YZin Photosystem II†

Biochemistry ◽  
2000 ◽  
Vol 39 (2) ◽  
pp. 470-478 ◽  
Author(s):  
Richard J. Debus ◽  
Kristy A. Campbell ◽  
Jeffrey M. Peloquin ◽  
Donna P. Pham ◽  
R. David Britt
Keyword(s):  
Photosystem Ii ◽  
Redox Properties ◽  
Manganese Cluster ◽  
D1 Polypeptide

scholarly journals Ligation of D1-His332 and D1-Asp170 to the Manganese Cluster of Photosystem II fromSynechocystisAssessed by Multifrequency Pulse EPR Spectroscopy†

Biochemistry ◽  
2011 ◽  
Vol 50 (34) ◽  
pp. 7390-7404 ◽  
Author(s):  
Troy A. Stich ◽  
Gregory J. Yeagle ◽  
Rachel J. Service ◽  
Richard J. Debus ◽  
R. David Britt
Keyword(s):  
Photosystem Ii ◽  
Epr Spectroscopy ◽  
Manganese Cluster ◽  
Pulse Epr

scholarly journals The Ligand Environment of the S2 State of Photosystem Ii: A Study of the Hyperfine Interactions of the Tetranuclear Manganese Cluster by 2D Hyscore Spectroscopy.‡

2010 ◽  
Vol 98 (3) ◽  
pp. 172a-173a
Author(s):  
K.V. Lakshmi ◽  
Sergey Milikisiyants ◽  
Ruchira Chatterjee ◽  
Amanda M. Weyers ◽  
Ashley Meenaghan ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Hyperfine Interactions ◽  
Manganese Cluster ◽  
Ligand Environment ◽  
S2 State
Sign in / Sign up

Export Citation Format

Share Document