Jump to main content
Jump to site search

Issue 12, 2005
Previous Article Next Article

Photosynthesis: a blueprint for solar energy capture and biohydrogen production technologies

Author affiliations

Abstract

Solar energy capture, conversion into chemical energy and biopolymers by photoautotrophic organisms, is the basis for almost all life on Earth. A broad range of organisms have developed complex molecular machinery for the efficient conversion of sunlight to chemical energy over the past 3 billion years, which to the present day has not been matched by any man-made technologies. Chlorophyll photochemistry within photosystem II (PSII) drives the water-splitting reaction efficiently at room temperature, in contrast with the thermal dissociation reaction that requires a temperature of ca. 1550 K. The successful elucidation of the high-resolution structure of PSII, and in particular the structure of its Mn4Ca cluster (K. N. Ferreira, T. M. Iverson, K. Maghlaoui, J. Barber and S. Iwata, Science, 2004, 303, 1831–1838, ) provides an invaluable blueprint for designing solar powered biotechnologies for the future. This knowledge, combined with new molecular genetic tools, fully sequenced genomes, and an ever increasing knowledge base of physiological processes of oxygenic phototrophs has inspired scientists from many countries to develop new biotechnological strategies to produce renewable CO2-neutral energy from sunlight. This review focuses particularly on the potential of use of cyanobacteria and microalgae for biohydrogen production. Specifically this article reviews the predicted size of the global energy market and the constraints of global warming upon it, before detailing the complex set of biochemical pathways that underlie the photosynthetic process and how they could be modified for improved biohydrogen production.

Graphical abstract: Photosynthesis: a blueprint for solar energy capture and biohydrogen production technologies

Back to tab navigation
Please wait while Download options loads

Publication details

The article was received on 17 May 2005, accepted on 02 Sep 2005, published on 04 Nov 2005 and first published online on 04 Nov 2005


Article type: Perspective
DOI: 10.1039/B506923H
Citation: Photochem. Photobiol. Sci., 2005,4, 957-970
  •   Request permissions

    Photosynthesis: a blueprint for solar energy capture and biohydrogen production technologies

    O. Kruse, J. Rupprecht, J. H. Mussgnug, G. C. Dismukes and B. Hankamer, Photochem. Photobiol. Sci., 2005, 4, 957
    DOI: 10.1039/B506923H

Search articles by author