Noncyclic photophosphorylation in photosynthetic bacteria.
نویسندگان
چکیده
منابع مشابه
Photosynthesis by isolated chloroplasts. X. Dependence of carbon dioxide assimilation on the photochemical reactions of chloroplasts.
In addition to photosynthetic phosphorylation recent work has also provided direct experimental evidence (10-14) for the often asserted but never previously demonstrated capacity of isolated chloroplasts to assimilate CO2 photosynthetically to the level of carbohydrates. CO2 assimilation by isolated chloroplasts was found to be a dark process (15) dependent on a photochemically generated “assim...
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The P/2eratio of noncyclic photophosphorylation was investigated in the light of recent reports that it is greater than one and may reflect the existence of two types of electron transport, a phosphorylating and a nonphosphorylating type, superimposed on each other. Our results, obtained under experimental conditions that included those reported to be conducive to high ratios, are consistent wi...
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Photosynthetic electron transport is coupled to ATP synthesis. This process - photosynthetic phosphorylation - proceeds by several alternative electron-transport pathways in isolated chloroplasts. The question: 'Which of these works in real life?' has long occupied students of photosynthesis. Recent results from structural biology and genomics suggest that the answer is 'All of them'. The inter...
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Chloroplasts isolated from powdery mildew-infected (Erysiphe polygoni DC) sugar beet leaves (Beta vulgaris L) showed a reduction in the rate of electron transport and in the accompanying ATP formation in noncyclic photophosphorylation (water as electron donor, NADP as electron acceptor) and little or no change in the rate of ATP formation in cyclic photophosphorylation catalyzed by phenazine me...
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عنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 47 شماره
صفحات -
تاریخ انتشار 1961