How is Glyceraldehyde 3-phosphate converted into glucose?
Advice to students of biochemistry

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The generation of glucose from triose produced in the dark reaction is well understood

The answer to the question can be found in e.g. Berg et al. 20.1.3:


  The 3-phosphoglycerate product of rubisco is next converted into three forms of hexose phosphate: glucose 1-phosphate, glucose 6-phosphate, and fructose 6-phosphate... The steps in this conversion (Figure 20.9) are like those of the gluconeogenic pathway (Section 16.3.1), except that glyceraldehyde 3-phosphate dehydrogenase in chloroplasts, which generates glyceraldehyde 3-phosphate (GAP), is specific for NADPH rather than NADH. Alternatively, the glyceraldehyde 3-phosphate can be transported to the cytosol for glucose synthesis.




Berg et al. Fig. 20.9

The Section 16.3.1 referred to is a general treatment of gluconeogenesis, which is the same in all organisms or cells that possess the enzymes to catalyse its unique steps. (Some cells may not have — or need to have — the initial steps from pyruvate. In fact, Fig. 20.9 shows the steps to G 6-P — the only step missing is the phosphatase step that generates glucose.) There is therefore no reason to expect an account specific for plants.