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. 1984 Feb;74(2):451–454. doi: 10.1104/pp.74.2.451

Effective Absorption Cross-Sections in Porphyridium cruentum1

Implications for Energy Transfer between Phycobilisomes and Photosystem II Reaction Centers

Arthur C Ley 1
PMCID: PMC1066702  PMID: 16663442

Abstract

Effective absorption cross-sections for O2 production by Porphyridium cruentum were measured at 546 and 596 nanometers. Although all photosystem II reaction centers are energetically coupled to phycobilisomes, any single phycobilisome acts as antenna for several photosystem II reaction centers. The cross-section measured in state I was 50% larger than that measured in state II.

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Selected References

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