Molecular Basis of Herbicide Resistance in Amaranthus hybridus

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Science  23 Dec 1983:
Vol. 222, Issue 4630, pp. 1346-1349
DOI: 10.1126/science.222.4630.1346


Resistance of different species of weeds to s-triazines, a commonly used class of herbicides, has been shown to involve a change in the binding affinity of the herbicide to a chloroplast polypeptide of 32,000 daltons. A single amino acid difference in this 32,000-dalton protein appears to be responsible for resistance to the herbicide in Amaranthus hybridus.