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Improving photosynthesis in rice: from small steps to giant leaps

Code: 9781838792374
R. F. Sage, University of Toronto, Canada; and Shunsuke Adachi and Tadashi Hirasawa, Tokyo University of Agriculture and Technology, Japan

Chapter synopsis: Current strategies for boosting rice productivity encounter diminishing returns as rice crops approach yield ceilings. This chapter describes how improvement of photosynthetic efficiency is needed to boost yield ceilings. This can be in the context of C3 photosynthesis, overcoming single limitations and maintaining optimal distribution of resources within the photosynthetic apparatus. The chapter shows that chloroplast-specific photorespiratory bypasses can lead to improvements in overcoming photorespiration-related limitations. The most significant enhancement would be engineering the C4 photosynthetic pathway into rice. The chapter argues that a major priority in the early phase of C4 engineering is targeting genes responsible for C4 structure and function.

DOI: 10.19103/AS.2016.0003.04
Table of contents 1 Introduction 2 Demand functions in C 3 plants: biochemical limitations 3 Supply functions in C 3 plants: diffusion limitations 4 Strategies for improving photosynthetic performance 5 Future trends and conclusion 6 Where to look for further information 7 References

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