Possible routes and progress
to suppressing photorespiration by introducing C4 photosynthesis in C3 crop plants will be discussed,
including whether single cell C4 photosynthesis is feasible, how the evolution of C3–C4 intermediates
can be used as a blueprint for engineering C4 photosynthesis, which pathway for the C4 cycle might be
introduced and the extent to which processes and structures in C3 plant might require optimisation.