Multiple ALS Mutations Confer Herbicide Resistance in Waterhemp (Amaranthus Tuberculatus)

@inproceedings{Patzoldt2007MultipleAM,
  title={Multiple ALS Mutations Confer Herbicide Resistance in Waterhemp (Amaranthus Tuberculatus)},
  author={William L. Patzoldt and Patrick J. Tranel},
  year={2007}
}
Abstract In a survey of herbicide responses among Illinois waterhemp half-sib populations, several were observed with differential responses to imazethapyr and thifensulfuron, two acetolactate synthase (ALS)–inhibiting herbicides. Plants from two waterhemp populations were verified resistant to imazethapyr, but susceptible to chlorimuron, using a nondestructive leaf-disc assay. Sequencing of the ALS gene revealed that imazethapyr-resistant waterhemp plants from both populations had inferred… CONTINUE READING

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