Formation of plastocyanin and cytochrome c-553 in different species of blue-green algae

Abstract

Fifteen species from different genera of blue-green algae have been examined for their formation of plastocyanin (PC) and cytochrome c-553 (cyt c-553) in high or low Cu media. In addition to species which contain only cyt c-553 and those which completely exchange their cyt c-553 by PC, a new regulatory type was detected in which this exchange was incomplete. By comparing different species, it could be shown that either this incomplete exchange of cyt c-553 by PC as well as lack of PC in some other blue-green algae is not caused by restricted Cu uptake but is due to different biosynthetic and regulatory properties. Occurrence of PC and cyt c-553 cannot be used as a taxonomic criterium to classify blue-green algae. However, formation of either one or both of these redox components fits well into a line of evolution of the photosynthetic apparatus from the blue-green algae via green algae to higher plants.

DOI: 10.1007/BF00413030

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@article{Sandmann2004FormationOP, title={Formation of plastocyanin and cytochrome c-553 in different species of blue-green algae}, author={G erhard Sandmann}, journal={Archives of Microbiology}, year={2004}, volume={145}, pages={76-79} }