It has been 65 years since the Calvin–Benson cycle was first formulated. In this paper, the development of the concepts that are critical to the cycle is traced and the contributions of Calvin, Benson, and Bassham are discussed. Some simplified views often found in text books such as ascen...
Interestingly, a fluxom analysis using 13C labeling techniques showed that glucose breakdown is carried out exclusively using the Entner-Doudoroff pathway; thus, the alternative routes are used only for anabolic purposes (Fu¨ rch et al., 2009). The Calvin cycle is lacking, indicated by the ...
b. NADPH is an input to both the light reactions and the Calvin Cycle. c. ATP is an input to the light reactions. d. NADPH is found in the chloroplastid but is not Describe the role of ATP and NADPH in the Calvin cycle...
CO2. Transfer of excitation energy from excited chlorophylls to oxygen in the light-harvesting complexes leads to the formation of1O2and O2●-, which can be further converted to H2O2and OH●. The production of ROS is enhanced by strong light and also by deceleration of the Calvin cycle [28...
the Calvin cycle. This is advantageous because it facilitates the introduction of CO2in the Calvin cycle through the carboxylation of RUDP by means of RUDP carboxylase, which is less active than PEPA carboxylase and requires higher concentrations of CO2for optimal operation. Moreover, the high ...
the light independent reactions are also referred to as the Calvin cycle which is the part of photosynthesis in which carbon dioxide is taken from the atmosphere and integrated into a cyclical reaction.Answer and Explanation: Become a member and unlock all Study Ans...
This is because we aim to culture and enrich 13C-labeled DNA in nitrifiers, and thus to distinguish metabolic differences of active nitrifiers between the plastisphere (sessile) and seawater (free-living). NH4+, NO2− and NO3− concentrations were measured before each resupplementation. To ...
Because pGlcT2 is a close homolog to pGlcT, a chloroplast-located transporter with a function in starch degradation (23, 26), diurnal effects on pGlcT2 expression were analyzed. For this, we harvested rosettes from plants grown under short-day conditions (10 h light) at various time points...
Its level in leaves is controlled by the rate of its biosynthesis and degradation. The amount and activity of RuBisCO decrease rapidly under water deficit conditions. The decrease in intra-cellular CO2 slows down the Calvin cycle processes, resulting in less NADPH and ATP utilization. This ...
What does the light reaction provide that the Calvin cycle needs? What are the products of the light reaction in photosynthesis that are utilized in the Calvin cycle? What is used in the light reactions, and what is used in the Calvin cycle? What are the key features of the light...