Skip to main content

Some NLM-NCBI services and products are experiencing heavy traffic, which may affect performance and availability. We apologize for the inconvenience and appreciate your patience. For assistance, please contact our Help Desk at info@ncbi.nlm.nih.gov.

Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1976 Nov;73(11):3957–3960. doi: 10.1073/pnas.73.11.3957

Efficiency of energy transfer from photosystem II to photosystem I in Porphyridium cruentum

Arthur C Ley 1, Warren L Butler 1
PMCID: PMC431282  PMID: 16592361

Abstract

The yield of energy transfer from photosystem II to photosystem I in Porphyridium cruentum varies from a minimum value of about 0.50 when the photosystem II reaction centers are all open to a maximum value between 0.90 and 0.95 when the centers are all closed.

Keywords: energy distribution, chlorophyll, phycobilin, phycoerythrin, photosynthetic apparatus

Full text

PDF
3957

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Butler W. L. Absorption spectroscopy of biological materials. Methods Enzymol. 1972;24:3–25. doi: 10.1016/0076-6879(72)24052-6. [DOI] [PubMed] [Google Scholar]
  2. Butler W. L., Kitajima M. Energy transfer between photosystem II and photosystem I in chloroplasts. Biochim Biophys Acta. 1975 Jul 8;396(1):72–85. doi: 10.1016/0005-2728(75)90190-5. [DOI] [PubMed] [Google Scholar]
  3. Butler W. L., Kitajima M. Fluorescence quenching in photosystem II of chloroplasts. Biochim Biophys Acta. 1975 Jan 31;376(1):116–125. doi: 10.1016/0005-2728(75)90210-8. [DOI] [PubMed] [Google Scholar]
  4. Glazer A. N., Bryant D. A. Allophycocyanin B (lambdamax 671, 618 nm): a new cyanobacterial phycobiliprotein. Arch Microbiol. 1975 Jun 20;104(1):15–22. doi: 10.1007/BF00447294. [DOI] [PubMed] [Google Scholar]
  5. Kitajima M., Butler W. L. Excitation spectra for photosystem I and photosystem II in chloroplasts and the spectral characteristics of the distributions of quanta between the two photosystems. Biochim Biophys Acta. 1975 Dec 11;408(3):297–305. doi: 10.1016/0005-2728(75)90131-0. [DOI] [PubMed] [Google Scholar]
  6. Kitajima M., Butler W. L. Quenching of chlorophyll fluorescence and primary photochemistry in chloroplasts by dibromothymoquinone. Biochim Biophys Acta. 1975 Jan 31;376(1):105–115. doi: 10.1016/0005-2728(75)90209-1. [DOI] [PubMed] [Google Scholar]
  7. Mar T., Govindjee, Singhal G. S., Merkelo H. Lifetime of the excited state in vivo. I. Chlorophyll a in algae, at room and at liquid nitrogen temperatures; rate constants of radiationless deactivation and trapping. Biophys J. 1972 Jul;12(7):797–808. doi: 10.1016/S0006-3495(72)86123-X. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. PROVASOLI L., MCLAUGHLIN J. J., DROOP M. R. The development of artificial media for marine algae. Arch Mikrobiol. 1957;25(4):392–428. doi: 10.1007/BF00446694. [DOI] [PubMed] [Google Scholar]

Articles from Proceedings of the National Academy of Sciences of the United States of America are provided here courtesy of National Academy of Sciences

RESOURCES