Photosynthesis by isolated chloroplasts. X. Dependence of carbon dioxide assimilation on the photochemical reactions of chloroplasts.

نویسندگان

  • A V TREBST
  • M LOSADA
  • D I ARNON
چکیده

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 “assimilatory power” comprising two components: TPNH2 and ATP formed by the noncyclic and cyclic photophosphorylation reactions (Equations 3 and 4). Noncyclic photophosphorylation (Equation 3) provides all the three expected products of the light phase of photosynthesis: 02, TPNH2, and ATP. Cyclic photophosphorylation (Equation

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عنوان ژورنال:
  • The Journal of biological chemistry

دوره 234  شماره 

صفحات  -

تاریخ انتشار 1959