scholarly journals Photosynthetic electron flow to oxygen and diffusion of hydrogen peroxide through the chloroplast envelope via aquaporins

2012 ◽  
Vol 1817 (8) ◽  
pp. 1314-1321 ◽  
Author(s):  
Maria M. (Mubarakshina) Borisova ◽  
Marina A. Kozuleva ◽  
Natalia N. Rudenko ◽  
Ilya A. Naydov ◽  
Irina B. Klenina ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Flow ◽  
Chloroplast Envelope ◽  
Photosynthetic Electron Flow ◽  
And Diffusion ◽  
Diffusion Of Hydrogen

Interaction of Photosystem II Herbicides with Bicarbonate and Formate in Their Effects on Photosynthetic Electron Flow

1984 ◽  
Vol 39 (5) ◽  
pp. 374-377 ◽  
Author(s):  
J. J. S. van Rensen
Keyword(s):  
Electron Transport ◽  
Photosystem Ii ◽  
Electron Flow ◽  
Photosynthetic Electron Transport ◽  
Hill Reaction ◽  
Amaranthus Hybridus ◽  
Apparent Affinity ◽  
Photosynthetic Electron Flow ◽  
Different Characteristics ◽  
The Hill

The reactivation of the Hill reaction in CO2-depleted broken chloroplasts by various concentrations of bicarbonate was measured in the absence and in the presence of photosystem II herbicides. It appears that these herbicides decrease the apparent affinity of the thylakoid membrane for bicarbonate. Different characteristics of bicarbonate binding were observed in chloroplasts of triazine-resistant Amaranthus hybridus compared to the triazine-sensitive biotype. It is concluded that photosystem II herbicides, bicarbonate and formate interact with each other in their binding to the Qв-protein and their interference with photosynthetic electron transport.

Adsorption and Diffusion of Hydrogen on C60-Supported Ptn Clusters

2013 ◽  
Vol 117 (19) ◽  
pp. 10059-10069 ◽  
Author(s):  
R. Méndez-Camacho ◽  
R. A. Guirado-López
Keyword(s):  
And Diffusion ◽  
Diffusion Of Hydrogen

Solubility and diffusion of hydrogen in vanadium-oxygen alloys

1988 ◽  
Vol 19 (1) ◽  
pp. 67-72 ◽  
Author(s):  
D. T. Peterson ◽  
B. J. Schlader
Keyword(s):  
And Diffusion ◽  
Diffusion Of Hydrogen

Non-Invasive Monitoring of the Light-Induced Cyclic Photosynthetic Electron Flow during Cold Hardening in Wheat Leaves

2006 ◽  
Vol 61 (9-10) ◽  
pp. 734-740 ◽  
Author(s):  
Simona Apostol ◽  
Gabriella Szalai ◽  
László Sujbert ◽  
Losanka P. Popova ◽  
Tibor Janda
Keyword(s):  
Winter Wheat ◽  
Electron Flow ◽  
Wheat Variety ◽  
Fluorescence Induction ◽  
Chlorophyll Fluorescence Induction ◽  
Light Conditions ◽  
Non Invasive ◽  
Photosynthetic Electron Flow ◽  
Temperature Hardening ◽  
Wheat Leaves

AbstractThe effect of irradiance during low temperature hardening was studied in a winter wheat variety. Ten-day-old winter wheat plants were cold-hardened at 5 °C for 11 days under light (250 μmol m-2 s-1) or dark (20 μmol m-2 s-1) conditions. The effectiveness of hardening was significantly lower in the dark, in spite of a slight decrease in the Fv/Fm chlorophyll fluorescence induction parameter, indicating the occurrence of photoinhibition during the hardening period in the light. Hardening in the light caused a downshift in the far-red induced AG (afterglow) thermoluminescence band. The faster dark re-reduction of P700+, monitored by 820-nm absorbance, could also be observed in these plants. These results suggest that the induction of cyclic photosynthetic electron flow may also contribute to the advantage of frost hardening under light conditions in wheat plants.

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