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1. Introduction
2. The thylakoid and the stroma
3. Location of Calvin cycle enzymes
4. Soluble stromal protein
5. ATP and NADPH generation
6. NADPH and ATP utilization
7. Exits from the Calvin cycle
8. The control on Calvin cycle enzymes
9. Reductive activation
10. Rubisco activase (1)
11. Mg effects (1)
12. Mg effects (2)
13. Effects of Ca and K cations on stromal metabolism
14. pH effects
15. pH in the stroma
16. Enzymes affected by pH
17. The narrow pH optimum of SBPase activity
18. The narrow pH optimum of Rubisco activity
19. FBPase activity and Mg concentration
20. FBPase activity and light activation
21. FBPase activity is affected by pH, Mg and light
22. Effect of pH on other Calvin cycle enzymes
23. Light activation
24. The light activated enzymes
25. Thioredoxins (1 )
26. The structure of thioredoxins
27. Thioredoxins (2)
28. The effects of activation on reaction and affinity (1)
29. The effects of activation on reaction and affinity (2)
30. Dark inactivation of the Calvin cycle enzymes
31. The redox-sensitive cysteine residues
32. Redox-sensitivity evolved separately
33. Non-reductive pentose phosphate enzymes
34. The chloroplast ATP synthase is light activated
35. The NADP-linked malate dehydrogenase
36. The chloroplast acetyl CoA carboxylase
37. ADP-glucose pyrophosphorylase
38. The oxidative pentose phosphate pathway (1)
39. The oxidative pentose phosphate pathway (2)
40. Stromal enzymes and thioredoxin
41. Rubisco activase (2)
42. Rubisco is inhibited by carboxyarabinitol-1-P
43. Regulation and activity of Rubisco
44. The P-glycolate transformation in the cell
45. P-glycolate production and expenditure of ATP
46. The 'C4' plants
47. Rubisco may limit photosynthetic CO2 fixation
48. Rate limiting enzymes and enzymes assosiations
49. Enzymes which associate with ATP-synthase
50. GAPD associates with ferredoxin-NADP reductase
51. GAPD associations and CO2 fixation
52. Summary
53. Reference (1)
54. Reference (2)
55. Reference (3)

Topics Covered

• Photosynthetic CO2 fixation
• Regulation of CO2 fixation
• Mg++ effects
• pH effects
• Light activation, the thioredoxin system
• Rubisco activase
• Rubisco, O2 competes with CO2
• Rate-limiting enzymes
• Enzyme-enzyme interaction and substrate channeling

Links

Series:

• Chloroplast

Categories:

• Biochemistry
• Plant & Animal Sciences

Talk Citation

Anderson, L. (2007, October 1). Regulation of photosynthetic carbon metabolism [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved December 22, 2024, from https://doi.org/10.69645/OCTQ6669.
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Publication History

• Published on October 1, 2007

Financial Disclosures

• Prof. Louise Anderson has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.