What is the maximum efficiency with which photosynthesis can convert solar energy into biomass?

What is the maximum efficiency with which photosynthesis can convert solar energy into biomass? Photosynthesis is the source of our food and fiber. Increasing world population, economic development, and diminishing land resources forecast that a doubling of productivity is critical in meeting agricultural demand before the end of this century. A starting point for evaluating the global potential to meet this goal is establishing the maximum efficiency of photosynthetic solar energy conversion. The potential efficiency of each step of the photosynthetic process from light capture to carbohydrate synthesis is examined. This reveals the maximum conversion efficiency of solar energy to biomass is 4.6% for C3 photosynthesis at 30 °C and today's 380 ppm atmospheric (CO 2 ), but 6% for C4 photosynthesis. This advantage over C3 will disappear as atmospheric (CO 2 ) nears 700 ppm. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Current Opinion in Biotechnology Elsevier

What is the maximum efficiency with which photosynthesis can convert solar energy into biomass?

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Publisher
Elsevier
Copyright
Copyright © 2008 Elsevier Ltd
ISSN
0958-1669
D.O.I.
10.1016/j.copbio.2008.02.004
Publisher site
See Article on Publisher Site

Abstract

Photosynthesis is the source of our food and fiber. Increasing world population, economic development, and diminishing land resources forecast that a doubling of productivity is critical in meeting agricultural demand before the end of this century. A starting point for evaluating the global potential to meet this goal is establishing the maximum efficiency of photosynthetic solar energy conversion. The potential efficiency of each step of the photosynthetic process from light capture to carbohydrate synthesis is examined. This reveals the maximum conversion efficiency of solar energy to biomass is 4.6% for C3 photosynthesis at 30 °C and today's 380 ppm atmospheric (CO 2 ), but 6% for C4 photosynthesis. This advantage over C3 will disappear as atmospheric (CO 2 ) nears 700 ppm.

Journal

Current Opinion in BiotechnologyElsevier

Published: Apr 1, 2008

References

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