منابع مشابه
Mechanism of photoactivation of electron transport in intact bryopsis chloroplasts.
The mechanism of photoactivation of photosystem I electron transport was studied in intact Bryopsis corticulans chloroplasts. The evidence from chemical and photochemical studies suggests that photoactivation is a consequence of a reduction of an electron transport component, presumably ferredoxin-NADP(+) reductase. O(2) does not act as a mediator of the process but rather acts as an electron a...
متن کاملComputer modeling of electron and proton transport in chloroplasts
Photosynthesis is one of the most important biological processes in biosphere, which provides production of organic substances from atmospheric CO2 and water at expense of solar energy. In this review, we contemplate computer models of oxygenic photosynthesis in the context of feedback regulation of photosynthetic electron transport in chloroplasts, the energy-transducing organelles of the plan...
متن کاملZinc-inhibited Electron Transport of Photosynthesis in Isolated Barley Chloroplasts.
In isolated barley chloroplasts, the presence of 2 millimolar ZnSO(4) inhibits the electron transport activity of photosystem II, as measured by photoreduction of dichlorophenolindophenol, O(2) evolution, and chlorophyll a fluorescence. The inhibition of photosystem II activity can be restored by the addition of the electron donor hydroxylamine or diphenylcarbazide, but not by benzidine and MnC...
متن کاملEffect of temperature on electron transport activities of isolated chloroplasts.
Temperature-induced changes in electron transport activities of chloroplasts isolated from chilling-sensitive and chilling-resistant plants have been examined. Using methylviologen as electron acceptor, temperature-induced changes occurred in the photosystem II plus photosystem I activities of chloroplasts isolated from chilling-resistant spinach (Spinacia oleracea L.) and pea (Pisum sativum L....
متن کاملDependence of nitrite reduction on electron transport chloroplasts.
Methyl viologen and phenazine methosulfate (photosystem I electron acceptors), 3-(3,4-dichlorophenyl)-1, 1-dimethylurea (DCMU, electron-transport inhibitor), and methylamine (photophosphorylation uncoupler) were used to study the dependence of nitrite reduction on electron transport in chloroplasts.DCMU, methyl viologen, and phenazine methosulfate markedly inhibited, whereas methylamine stimula...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1967
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)96157-0