Rumberg B and Heinze T (1980) Kinetic analysis of proton transport coupled ATP synthesis in chloroplasts, Ber. Bunsenges. Phys. Chem. 84, 1055–1059Rumberg, B., and Heinze, Th. (1980). Kinetic analysis of protontransport-coupled ATP synthesis in chIoroplast. Ber. Bunsenges Phys. Chem. 84, 1055-9.
Light-driven electron transport is coupled to ATP synthesis in chloroplasts. While the nature of the coupling and the structures of key components are now known, there has long been disagreement over pathways of electron transport. Recent results now put an old idea back on the agenda—cyclic el...
Illumination of chloroplast thylakoids in the presence of DTT activates ATP hydrolysis assayed in subsequent darkness. It also activates ATP synthesis in that the ∆pH required to support a given rate of photophosphorylation is reduced by approximately 0.3 pH units (1;2;figure 2)....
In eukaryotes, OXPHOS occurs in mitochondria, generate ATP from ADP and Pi by involving the reduction of O2 to H2O with electrons donated by NADH and FADH2. Photophosphorylation occurs in chloroplast or photosynthetic organisms which capture the energy of sunlight and use it to oxidise the H2O to...
Synthesis of ATP by the F1F0 ATP synthase in mitochondria and most bacteria is energized by the proton motive force (pmf) established and maintained by respiratory chain enzymes. Conversely, in the presence of ATP and in the absence of a pmf, the enzyme
ATP synthasesare multisubunitenzymespresent in the membranes of bacteria, mitochondria and chloroplasts. They catalyze the synthesis of ATP from ADP and phosphate driven by a transmembrane difference of protonic electrochemical potential (in some bacteria by a Na+electrochemical potential difference); under...
ARTICLE Received 25 Jun 2014 | Accepted 22 Nov 2014 | Published 5 Jan 2015 DOI: 10.1038/ncomms6928 OPEN AtPHT4;4 is a chloroplast-localized ascorbate transporter in Arabidopsis Takaaki Miyaji1,*, Takashi Kuromori2,*, Yu Takeuchi3, Naoki Yamaji4, Kengo Yokosho4, Atsushi Shimazawa3, Eriko...
Study the following statements regarding chemiosmotic hypothesis in mitochondria and select the correct ones. (i) F1 headpiece contains the site for the synthesis of ATP from ADP+Π. (ii) F0 par forms the channel through which protons cross the inner membrane. (iii) For each ATP produced...
Describe the role of an electron transport chain in the synthesis of ATP. Both mitochondria and chloroplast utilize an electron transport chain to synthesize ATP. Compare and contrast these processes between these two organelles. What are some of the dif ...
5 ATP synthesis in chloroplast (2): the chemiosmotic hypothesis 6 ATP synthesis in chloroplast (3): ATPase or ATP synthase/ coupling factors/ CF 0 CF 1 complex Paul Boyer (USA) and John Walker (UK), elucidating the ATPase structure and function, were awarded the Nobel Prize in 1997...