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photosystem

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photosystem [ˈfəʊtəʊˌsɪstəm]
n
(Life Sciences & Allied Applications / Botany) Botany either of two pigment-containing systems, photosystem I or II, in which the light-dependent chemical reactions of photosynthesis occur in the chloroplasts of plants


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These genes encode directions for making photosystem I, a protein complex that nabs electrons from proteins upstream in the photosynthesis chain.
While screening DNA sequences in water samples collected during Craig Venter's Global Ocean Sampling Expedition, his team discovered seven more photosynthesis genes coding for a complex of proteins collectively named photosystem I.
The first chapter, an overview, is followed by chapters on the structure and function of the cyanobacterial photosystem, the atomic structure of plant photosystem, current models and mechanisms of water splitting, and the specifics of each protein complex.
 
 
 
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