ausblenden:
Schlagwörter:
Herbicide-resistant mutant; Reaction center, Photosynthetic; Purple bacteria; Diuron; Terbutryn
Zusammenfassung:
Chromatophores of the mutant T4 (TyrL222 → Phe) from Rhodopseudomonas viridis, resistant toward the triazine herbicide terbutryn (2-methylthio-4-ethylamino-6-tertbutylamino-s-triazine), were studied by EPR and optical spectroscopy. IC50 values were measured with electron transfer inhibitors of the triazine, triazinone, phenol and urea classes. The mutant T4 is the first purple bacterium known so far, which is highly sensitive to the plant herbicide DCMU (3-(3,4-dichlorphenyl)-1, 1 -dimethyl-urea, also known as diuron).