Abstract
DNA can be introduced into the thermophilic cyanobacteriumSynechococcus elongatus by electroporation or conjugation. Its genome can be readily manipulated through integrative transformation or by using promiscuous RSF1010-derived plasmids that can be transferred unaltered betweenEscherichia coli andSynechococcus elongatus. These vectors can therefore be used for in vivo studies of cyanobacterial proteins in both mesophilic and thermophilic cyanobacterial backgrounds. As a preliminary step towards the analysis of structure-function relationships of photosystem I (PSI) from this thermophile, the genes encoding the PSI subunits PsaF, PsaL, and PsaK were inactivated and shown to be non-essential inS. elongatus. In addition, PSI reaction centres were extracted from apsaL − strain exclusively as monomeric complexes.
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Mühlenhoff, U., Chauvat, F. Gene transfer and manipulation in the thermophilic cyanobacteriumSynechococcus elongatus . Molec. Gen. Genet. 252, 93–100 (1996). https://doi.org/10.1007/BF02173209
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DOI: https://doi.org/10.1007/BF02173209