Morphology of a novel cyanobacterium and characterization of light-harvesting complexes from it: Implications for phycobiliprotein evolution
- 1 November 1981
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 78 (11), 6888-6892
- https://doi.org/10.1073/pnas.78.11.6888
Abstract
The morphology of the marine cyanobacterium DC-2 and 2 light-harvesting complexes from it were characterized. DC-2 has an outer cell wall sheath not previously observed, the purified phycoerythrin shows many unusual properties that distinguish it from all phycoerythrins characterized to date, and isolated phycobilisomes have a single absorption band at 640 nm in the phycocyanin-allophycocyanin region of the spectrum. DC-2, rather than being a member of the Synechococcus group, should be placed in its own taxonomic group. The particular properties of the isolated phycoerythrin suggest that it may be representative of an early stage in the evolution of the phycoerythrins. These observations are of special interest in light of the contribution DC-2 and related cyanobacteria may make to global primary productivity.This publication has 16 references indexed in Scilit:
- Phycobilisomes from Blue-Green and Red AlgaePlant Physiology, 1979
- Subunit structure and chromophore composition of rhodophytan phycoerythrins. Porphyridium cruentum B-phycoerythrin and b-phycoerythrin.Journal of Biological Chemistry, 1977
- Structure and molecular organization of the photosynthetic accessory pigments of cyanobacteria and red algaeMolecular and Cellular Biochemistry, 1977
- Multiple forms of phycoerythrin-545 from Cryptomonas maculataArchiv für Mikrobiologie, 1977
- Biliproteins of cyanobacteria and Rhodophyta: Homologous family of photosynthetic accessory pigmentsProceedings of the National Academy of Sciences, 1976
- Photosynthetically-linked oxidation of diaminobenzidine in blue-green algaeJournal of Ultrastructure Research, 1975
- Conformation of bilirubin and biliverdin in their complexes with serum albuminJournal of the American Chemical Society, 1975
- Mercurial-induced circular dichroism changes of phycoerythrin and phycocyaninBiochimica et Biophysica Acta (BBA) - Protein Structure, 1969
- Conformation dependence of intramolecular energy transfer in phycoerythrin.Proceedings of the National Academy of Sciences, 1968
- Fine structure of the mucilaginous sheath of Anabaena sp.Journal of Ultrastructure Research, 1967