Anacystis mutants with different tolerances to DCMU-type herbicides show differences in architecture and dynamics of the photosynthetic apparatus, depending on site and mode of the amino acid exchanges in the D 1 protein.

Abstract excerpt

Mutants of Anacystis R 2 with different amino acid exchanges in positions 255 and/or 264 in copy I of the psbA gene, leading to different tolerances to DCMU-type herbicides, are compared with the respective wild type concerning pigmentation and incorporation of 35S into the D 1 protein upon growth in the presence of [35S]methionine. All mutants have shade-type appearance compared to the wild type, although to...

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