A model for the mechanism of chloride activation of oxygen evolution in photosystem II

1987 ◽  
Vol 13 (3) ◽  
pp. 199-223 ◽  
Author(s):  
William J. Coleman ◽  
Govindjee
Keyword(s):  
Photosystem Ii ◽  
Oxygen Evolution ◽  
Activation Of Oxygen

scholarly journals Calcium reconstitutes high rates of oxygen evolution in polypeptide depleted Photosystem II preparations

FEBS Letters ◽  
1984 ◽  
Vol 167 (1) ◽  
pp. 127-130 ◽  
Author(s):  
Demetrios F. Ghanotakis ◽  
Gerald T. Babcock ◽  
Charles F. Yocum
Keyword(s):  
Photosystem Ii ◽  
Oxygen Evolution

scholarly journals How iodide ions inhibit the oxygen evolution of photosystem II?

2011 ◽  
Vol 67 (a1) ◽  
pp. C739-C740
Author(s):  
K. Kawakami ◽  
D. Hagiwara ◽  
Y. Umena ◽  
J. -R. Shen ◽  
N. Kamiya
Keyword(s):  
Photosystem Ii ◽  
Oxygen Evolution ◽  
Iodide Ions

Inhibition of oxygen evolution by ivalin

1994 ◽  
Vol 72 (2) ◽  
pp. 177-181 ◽  
Author(s):  
Ernesto Bernal-Morales ◽  
Alfonso Romo De Vivar ◽  
Bertha Sanchez ◽  
Martha Aguilar ◽  
Blas Lotina-Hennsen
Keyword(s):  
Electron Transport ◽  
Photosystem Ii ◽  
Sesquiterpene Lactone ◽  
Oxygen Evolution ◽  
Electron Flow ◽  
Atp Synthesis ◽  
Naturally Occurring ◽  
Transport Inhibitor ◽  
Proton Uptake ◽  
Key Words Oxygen

The inhibition of ATP synthesis, proton uptake, and electron transport (basal, phosphorylating, and uncoupled) from water to methylviologen by ivalin (a naturally occurring sesquiterpene lactone in Zaluzania triloba and Iva microcephala) indicates that it acts as electron transport inhibitor. Since photosystem I and electron transport from DPC to QA were not affected, while the electron flow of uncoupled photosystem II from H2O to DAD and from water to silicomolybdate was inhibited, we concluded that the site of inhibition of ivalin is located at the oxygen evolution level. Key words: oxygen evolution, ivalin, photosynthesis, sesquiterpene lactone.

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