JXB Advance Access originally published online on April 23, 2008
Journal of Experimental Botany 2008 59(7):1569-1580; doi:10.1093/jxb/ern084
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SPECIAL ISSUE REVIEW PAPER |
Rubisco regulation: a role for inhibitors
1Centre for Crop Genetics, Department of Plant Science, Rothamsted Research, Harpenden, Herts AL5 2JQ, UK
2Centro de Engenharia Biológica and Departamento de Biologia Vegetal, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749–016 Lisboa, Portugal
* To whom correspondence should be addressed. E-mail: martin.parry{at}bbsrc.ac.uk
In photosynthesis Rubisco catalyses the assimilation of CO2 by the carboxylation of ribulose-1,5-bisphosphate. However, the catalytic properties of Rubisco are not optimal for current or projected environments and limit the efficiency of photosynthesis. Rubisco activity is highly regulated in response to short-term fluctuations in the environment, although such regulation may not be optimally poised for crop productivity. The regulation of Rubisco activity in higher plants is reviewed here, including the role of Rubisco activase, tight binding inhibitors, and the impact of abiotic stress upon them.
Key words: Abiotic stress, CA1P, inhibitors, Rubisco, Rubisco activase
Received 25 January 2008; Revised 22 February 2008 Accepted 22 February 2008
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