A New V361A Mutation in Associated with PPO-Inhibiting Herbicide Resistance.

Weeds resistant to PPO-inhibiting herbicides threaten the profitability of crop producers relying on this chemistry. In , mutations at G210 (∆G210) and R128 (R128G/M) of the gene were reported to confer PPO-inhibitor resistance. Here, samples from nine states in America, having survived a field application of a PPO-inhibitor, were genotyped to determine the prevalence of these mutations.

Investigating target-site resistance mechanism to the PPO-inhibiting herbicide fomesafen in waterhemp and interspecific hybridization of Amaranthus species using next generation sequencing.

Background: Waterhemp (Amaranthus tuberculatus (Moq.) J. D.

Differential antioxidant enzyme activity in rapid-response glyphosate-resistant Ambrosia trifida.

Background: The giant ragweed (Ambrosia trifida L.) rapid-response (RR) biotype exhibits a sacrificial form of glyphosate resistance whereby an oxidative burst in mature leaves results in foliage loss, while juvenile leaves remain uninjured. This work investigated the safening capacity of antioxidant enzymes in RR juvenile leaves following glyphosate treatment and examined cross tolerance to paraquat.