Form of inorganic carbon utilized for photosynthesis across the chloroplast membrane
نویسندگان
چکیده
منابع مشابه
The evolution of inorganic carbon concentrating mechanisms in photosynthesis.
Inorganic carbon concentrating mechanisms (CCMs) catalyse the accumulation of CO(2) around rubisco in all cyanobacteria, most algae and aquatic plants and in C(4) and crassulacean acid metabolism (CAM) vascular plants. CCMs are polyphyletic (more than one evolutionary origin) and involve active transport of HCO(3)(-), CO(2) and/or H(+), or an energized biochemical mechanism as in C(4) and CAM p...
متن کاملThe kinetics of water exchange across the chloroplast membrane.
The kinetics of water exchange across the membrane of class II chloroplasts has been studied by two NMR methods. Both methods utilize Dy(en)3+ (en = ethylenediamine) to induce a transmembranal chemical shift the order of 40 Hz in the water proton resonance. The shift reagent is impermeant to the chloroplast membrane, inert as a redox reagent, soluble at millimolar concentrations at neutral pH, ...
متن کاملPhotosynthesis and inorganic carbon transport in isolated asparagus mesophyll cells.
The possibility of HCO(3) (-) transport into isolated leaf mesophyll cells of Asparagus sprengeri Regel has been investigated. Measurement of the inorganic carbon pool in these cells over an external pH range 6.2 to 8.0, using the silicone-fluid filtration technique, indicated that the pool was larger than predicted by passive (14)CO(2) distribution, suggesting that HCO(3) (-) as well as CO(2) ...
متن کاملMovement of inorganic ions across the membrane of striated muscle.
The unidirectional fluxes of sodium, chloride, anid potassium across the mnembrane of striated muscle cells are described under a number of experiniental conditions. The results are compared with the predicted behavior of simple membranes. With the possible exception of chloride, it is concluded that the movements of these ions cannot be described without postulating variable permeabilities or ...
متن کاملPhotosynthesis and coccolith formation : Inorganic carbon sources and net inorganic reaction of ’ deposition *
The concept that the formation ofCnC0, coccoliths functions as a photosynthetic adaptation for the use of bicarbonate is evaluated in the coccolithophorids Coccoliths hudeyi and Cricosphneru carterae by two new methods. In the first, carbon fixation is measured at 10-s intervals in the first 2 min after addition of “CO, and II’“CO,to buffered cultures; this method exploits the relatively long h...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: FEBS Letters
سال: 1978
ISSN: 0014-5793
DOI: 10.1016/0014-5793(78)80994-6