scholarly journals 9-cis-Neoxanthin in Light Harvesting Complexes of Photosystem II Regulates the Binding of Violaxanthin and Xanthophyll Cycle

2017 ◽  
Vol 174 (1) ◽  
pp. 86-96 ◽  
Author(s):  
Ke Wang ◽  
Wenfeng Tu ◽  
Cheng Liu ◽  
Yan Rao ◽  
Zhimin Gao ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Xanthophyll Cycle ◽  
Light Harvesting ◽  
Light Harvesting Complexes

scholarly journals Determination of the Stoichiometry and Strength of Binding of Xanthophylls to the Photosystem II Light Harvesting Complexes

1999 ◽  
Vol 274 (15) ◽  
pp. 10458-10465 ◽  
Author(s):  
Alexander V. Ruban ◽  
Pamela J. Lee ◽  
Mark Wentworth ◽  
Andrew J. Young ◽  
Peter Horton
Keyword(s):  
Photosystem Ii ◽  
Light Harvesting ◽  
Light Harvesting Complexes

Control of plant growth and water loss by a lack of light-harvesting complexes in photosystem II in Arabidopsis thaliana ch1-1 mutant

2014 ◽  
Vol 36 (7) ◽  
pp. 1627-1635 ◽  
Author(s):  
Md Sarwar Jahan ◽  
Mohd Nozulaidi ◽  
Mohammad Moneruzzaman Khandaker ◽  
Ainun Afifah ◽  
Nurul Husna
Keyword(s):  
Arabidopsis Thaliana ◽  
Photosystem Ii ◽  
Plant Growth ◽  
Water Loss ◽  
Light Harvesting ◽  
Light Harvesting Complexes

scholarly journals Allosteric regulation of the light-harvesting system of photosystem II

2000 ◽  
Vol 355 (1402) ◽  
pp. 1361-1370 ◽  
Author(s):  
Peter Horton ◽  
Alexander V. Ruban ◽  
Mark Wentworth
Keyword(s):  
Photosystem Ii ◽  
Xanthophyll Cycle ◽  
Light Harvesting ◽  
Allosteric Regulation ◽  
Photochemical Quenching ◽  
Protein Subunit ◽  
Ps Ii ◽  
Non Photochemical Quenching

Non–photochemical quenching of chlorophyll fluorescence (NPQ) is symptomatic of the regulation of energy dissipation by the light–harvesting antenna of photosystem II (PS II). The kinetics of NPQ in both leaves and isolated chloroplasts are determined by the transthylakoid ΔpH and the de–epoxidation state of the xanthophyll cycle. In order to understand the mechanism and regulation of NPQ we have adopted the approaches commonly used in the study of enzyme–catalysed reactions. Steady–state measurements suggest allosteric regulation of NPQ, involving control by the xanthophyll cycle carotenoids of a protonationdependent conformational change that transforms the PS II antenna from an unquenched to a quenched state. The features of this model were confirmed using isolated light–harvesting proteins. Analysis of the rate of induction of quenching both in vitro and in vivo indicated a bimolecular second–order reaction; it is suggested that quenching arises from the reaction between two fluorescent domains, possibly within a single protein subunit. A universal model for this transition is presented based on simple thermodynamic principles governing reaction kinetics.

Evidence of the supercomplex organization of photosystem II and light-harvesting complexes in Nannochloropsis granulata

2017 ◽  
Vol 136 (1) ◽  
pp. 49-61 ◽  
Author(s):  
Ikumi Umetani ◽  
Motoshi Kunugi ◽  
Makio Yokono ◽  
Atsushi Takabayashi ◽  
Ayumi Tanaka
Keyword(s):  
Photosystem Ii ◽  
Light Harvesting ◽  
Light Harvesting Complexes ◽  
Nannochloropsis Granulata
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