The role of light in formation of modified S2-state upon low pH-treatment of oxygen-evolving Photosystem II

1992 ◽  
Vol 32 (1) ◽  
pp. 71-78 ◽  
Author(s):  
Jian-Ren Shen ◽  
Taka-aki Ono ◽  
Yorinao Inoue
Keyword(s):  
Photosystem Ii ◽  
Low Ph ◽  
S2 State ◽  
Oxygen Evolving ◽  
Role Of Light

Role of Light in Plant Development

2015 ◽  
Vol 1 (01) ◽  
pp. 43-56
Author(s):  
S. B. Agrawal ◽  
Suruchi Singh ◽  
Madhoolika Agrawal
Keyword(s):  
Complex System ◽  
Photosystem Ii ◽  
Solar Radiation ◽  
Plant Growth ◽  
Higher Plants ◽  
Evolutionary Advantage ◽  
To Come ◽  
Oxygen Evolving ◽  
Role Of Light

During the course of evolution, plants developed the capability of capturing and utilizing the solar radiation. These plants gained an evolutionary advantage over those that have not developed these traits. Light besides being an important source of energy also controls many developmental processes like photoperiodism, phototropism and photomorphogenesis of plant growth. Oxygen in the atmosphere is generally believed to come from light induced water-splitting that occurs in oxyphotosynthetic organisms catalysed by the oxygen evolving centre of photosystem II. To optimize both the roles of light, plants evolved complex system and the most established higher plants photoautotrophic mode of nutrition is responsible for establishing and sustaining the human civilization.

scholarly journals Role of redox-inactive metals in controlling the redox potential of heterometallic manganese–oxido clusters

2021 ◽  
Author(s):  
Keisuke Saito ◽  
Minesato Nakagawa ◽  
Manoj Mandal ◽  
Hiroshi Ishikita
Keyword(s):  
Photosystem Ii ◽  
Redox Potential ◽  
Quantum Chemical Calculations ◽  
Catalytic Reaction ◽  
Quantum Chemical ◽  
Ionic Radius ◽  
Redox Potentials ◽  
Oxygen Evolving ◽  
Highest Occupied Molecular Orbitals

AbstractPhotosystem II (PSII) contains Ca2+, which is essential to the oxygen-evolving activity of the catalytic Mn4CaO5 complex. Replacement of Ca2+ with other redox-inactive metals results in a loss/decrease of oxygen-evolving activity. To investigate the role of Ca2+ in this catalytic reaction, we investigate artificial Mn3[M]O2 clusters redox-inactive metals  [M] ([M]  = Mg2+, Ca2+, Zn2+, Sr2+, and Y3+), which were synthesized by Tsui et al. (Nat Chem 5:293, 2013). The experimentally measured redox potentials (Em) of these clusters are best described by the energy of their highest occupied molecular orbitals. Quantum chemical calculations showed that the valence of metals predominantly affects Em(MnIII/IV), whereas the ionic radius of metals affects Em(MnIII/IV) only slightly.

scholarly journals Role of the RCII-D1 Protein in the Reversible Association of the Oxygen-evolving Complex Proteins with the Lumenal Side of Photosystem II

1995 ◽  
Vol 270 (50) ◽  
pp. 30181-30186 ◽  
Author(s):  
Yael Eisenberg-Domovich ◽  
Ralf Oelmüller ◽  
Reinhold G. Herrmann ◽  
Itzhak Ohad
Keyword(s):  
Photosystem Ii ◽  
D1 Protein ◽  
Oxygen Evolving Complex ◽  
Reversible Association ◽  
Oxygen Evolving

scholarly journals Tetranuclear [MnIIIMn3IVO4] Complexes as Spectroscopic Models of the S2 State of the Oxygen Evolving Complex in Photosystem II

2018 ◽  
Vol 140 (49) ◽  
pp. 17175-17187 ◽  
Author(s):  
Heui Beom Lee ◽  
Angela A. Shiau ◽  
Paul H. Oyala ◽  
David A. Marchiori ◽  
Sheraz Gul ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Oxygen Evolving Complex ◽  
S2 State ◽  
Oxygen Evolving

Role of Phosphatidylglycerol in Oxygen-Evolving Complex of Photosystem II

2008 ◽  
pp. 463-466 ◽  
Author(s):  
Naoki Mizusawa ◽  
Isamu Sakurai ◽  
Hisako Kubota ◽  
Hajime Wada
Keyword(s):  
Photosystem Ii ◽  
Oxygen Evolving Complex ◽  
Oxygen Evolving

Formation of the High-Spin S2 State Related to the Extrinsic Proteins in the Oxygen Evolving Complex of Photosystem II

2020 ◽  
Vol 11 (20) ◽  
pp. 8908-8913
Author(s):  
Shota Taguchi ◽  
Liangliang Shen ◽  
Guangye Han ◽  
Yasufumi Umena ◽  
Jian-Ren Shen ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
High Spin ◽  
Oxygen Evolving Complex ◽  
Extrinsic Proteins ◽  
S2 State ◽  
Oxygen Evolving
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