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Genetically engineered control of the primary photosynthetic reactions of photosystem II

Reference	C08541
Principal Investigator / Supervisor	Professor David Klug
Co-Investigators / Co-Supervisors	Professor James Durrant, Professor Peter Nixon
Institution	Imperial College London
Department	Chemistry
Funding type	Research
Value (£)	101,419
Status	Completed
Type	Research Grant
Start date	01/01/1998
End date	30/06/2000
Duration	30 months

Abstract

Genetic engineering has been employed to modify the primary processes of photosystem II. Residues which have been targetted are D1-130 and D1-198, which we have already shown to modulate the free energy and quantum yield of the primary radical pair in the isolated PS II reaction centre, and D1-His118, a potential ligand to a putative linker chlorophyll between the reaction centre and antenna chlorophylls of PS II. Time resolved spectroscopy will be used to determine the effect of these mutations upon the energy and electron transfer within PS II core complexes and complimented by determination of in vivo growth rates. These studies are aimed at elucidating the balance between efficient function and regulation in this photosystem, with the long term objective of identifying potential targets for genetic manipulation of PS II for improved photosynthetic efficiency/stress tolerance.

Summary

unavailable

Committee	Closed Committee - Biochemistry & Cell Biology (BCB)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

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