NONCYCLIC PHOTOPHOSPHORYLATION IN PHOTOSYNTHETIC BACTERIA

Noncyclic photophosphorylation in photosynthetic bacteria.

Cyclic, pseudocyclic and noncyclic photophosphorylation: new links in the chain.

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...

Cyclic and Noncyclic Photophosphorylation in Isolated Guard Cell Chloroplasts from Vicia faba L.

High rates of both cyclic and noncyclic photophosphorylation were measured in chloroplast lamellae isolated from purified guard cell protoplasts from Vicia faba L. Typical rates of light-dependent incorporation of (32)P into ATP were 100 and 190 micromoles ATP per milligram chlorophyll per hour for noncyclic (water to ferricyanide) and cyclic (phenazine methosulfate) photophosphorylation, respe...

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...

Photosynthetic apparatus of purple bacteria.

3. Excitation transfer in the PSU 18 3.1 Electronic excitations of BChls 22 3.1.1 Individual BChls 22 3.1.2 Rings of BChls 22 3.1.2.1 Exciton states 22 3.1.3 Effective Hamiltonian 24 3.1.4 Optical properties 25 3.1.5 The effect of disorder 26 3.2 Theory of excitation transfer 29 3.2.1 General theory 29 3.2.2 Mechanisms of excitation transfer 32 3.2.3 Approximation for long-range transfer 34 3.2...