Mutation in phenol-type herbicide resistance maps within the psbA gene in Synechocystis 6714.
A Synechocytis 6714 mutant resistant to the phenol-type herbicide ioxynil was isolated and characterized. Sensitivity to DCMU and atrazine was tf measured in whole cells and isolated thylakoids. The mutant presents the same sensitivity to atrazine as the wild type and a slightly increased sensitivity to DCMU. A point mutation has been found at codon 266 in the psbAI coding locus (AAC to ACC) resulting in an amino acid change from asparagine to threonine in the D1 protein.
Ajlani
G
G
ER 407, CNRS, Gif-sur-Yvette, France.
Meyer
I
I
Vernotte
C
C
Astier
C
C
D000595:Amino Acid Sequence; D001483:Base Sequence; D002734:Chlorophyll / Q000235:genetics*; D003001:Cloning, Molecular; D003062:Codon; D000458:Cyanobacteria / Q000187:drug effects / Q000235:genetics*; D004352:Drug Resistance, Microbial; D005796:Genes; D006540:Herbicides / Q000494:pharmacology*; D007462:Iodobenzenes / Q000494:pharmacology; D045342:Light-Harvesting Protein Complexes; D008969:Molecular Sequence Data; D009154:Mutation; D009570:Nitriles / Q000494:pharmacology*; D045322:Photosynthetic Reaction Center Complex Proteins; D010940:Plant Proteins / Q000235:genetics*
D003062:Codon; D006540:Herbicides; D007462:Iodobenzenes; D045342:Light-Harvesting Protein Complexes; D009570:Nitriles; D045322:Photosynthetic Reaction Center Complex Proteins; D010940:Plant Proteins; D002734:Chlorophyll; C008161:ioxynil