Abstract
The oceanic picoplankton Prochlorococcus - probably the most abundant photosynthetic organism on our planet - can grow at great depths where light intensity is very low. We have found that the chlorophyll-binding proteins in a deep-living strain of this oxyphotobacterium form a ring around a trimer of the photosystem I (PS I) photosynthetic reaction centre, a clever arrangement that maximizes the capture of light energy in such dim conditions.
MeSH terms
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Bacterial Proteins / chemistry*
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Bacterial Proteins / physiology
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Cyanobacteria / chemistry*
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Cyanobacteria / physiology
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Light-Harvesting Protein Complexes
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Photosynthesis
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Photosynthetic Reaction Center Complex Proteins / chemistry*
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Photosystem I Protein Complex
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Prochloron / chemistry
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Prochloron / physiology
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Prochlorothrix / chemistry
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Prochlorothrix / physiology
Substances
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Bacterial Proteins
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Light-Harvesting Protein Complexes
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Photosynthetic Reaction Center Complex Proteins
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Photosystem I Protein Complex