Weed Control and Herbicide Applications

Hormesis without evolution: plastic compensatory responses to herbicide drift in Oxalis stricta, a common weed of agriculture

This study shows that Oxalis stricta exhibits consistent plastic responses to dicamba drift, increasing flower production but with variable reproductive outcomes, without significant genetic variation for hormesis.

Characterization of a novel R98Q mutation that confers resistance to sulfentrazone in common ragweed (Ambrosia artemisiifolia) populations from MichiganShort title: PPO resistance in common ragweed

This study identifies a novel R98Q mutation in PPO2 conferring resistance to sulfentrazone in common ragweed populations from Michigan.

Departures from Mendelian inheritance of EPSPS gene copies in a herbicide-resistant weed

The paper quantifies EPSPS gene copy number variation in Amaranthus palmeri and finds non-Mendelian inheritance and instability, with higher heritability at lower copy numbers.

Analysis of glutamine synthetase target-site mutations and their role in endowing glufosinate-ammonium resistance

This study analyzes glutamine synthetase mutations in GFA-resistant plants, finding that G255D reduces enzyme activity but confers GFA insensitivity, while other mutations impair catalytic function.

Fendioxypyracil, a new and systemic PPO-inhibiting herbicide for X-spectrum weed control

This paper introduces fendioxypyracil, a new PPO-inhibiting herbicide, showing high efficacy against various weeds and confirming its mode of action through physiological and enzyme assays.

Confirmation and Transcriptomic Characterization of Glufosinate-ammonium Resistance in Waterhemp (Amaranthus tuberculatus) Populations from Illinois

This study confirms GA resistance in waterhemp populations and identifies differentially expressed metabolism-related genes as potential contributors to resistance.

Group 15 Pre-emergent Herbicides Differentially Effect Plant Growth, Cuticular Wax Composition, and Fatty Acid Metabolism in Herbicide-Resistant and Herbicide-naïve Blackgrass

This study examines how three Group 15 herbicides affect plant growth, cuticular wax, and fatty acid metabolism in herbicide-resistant and -naïve blackgrass biotypes.

Determination of the mechanisms of MCPA resistance in Amaranthus powellii

This study identifies a SNP in ARF9 causing a leucine to phenylalanine substitution, disrupting ARF9-Aux/IAA interactions and contributing to MCPA resistance in Amaranthus powellii.

A transposable element insertion in IAA16 disrupts splicing and causes dicamba resistance in Bassia scoparia

This study identifies a transposable element insertion in AUX/IAA16 that disrupts splicing and causes dicamba resistance in kochia, with implications for herbicide resistance management.

The International Weed Genomics Consortium: Community Resources for Weed Genomics Research

The paper outlines genomic resources developed by the International Weed Genomics Consortium to improve weed control and crop breeding through insights into stress tolerance.

Deep haplotype analyses of target-site resistance locus ACCase in blackgrass enabled by pool-based amplicon sequencing

The paper uses pool-based amplicon sequencing to analyze haplotype diversity at the ACCase resistance locus in blackgrass, revealing common soft sweeps and the persistence of TSR haplotypes.

Seed reserve mobilization and seedling morphology in a bioassay for the detection of genetically modified soybean

This study examines how glyphosate affects seed reserve mobilization and seedling morphology in genetically modified soybean cultivars.

Can double PPO mutations exist in the same allele and are such mutants functional?

The paper investigates whether double PPO mutations can co-occur in the same allele and assesses their functionality in Amaranthus species.

The Draft Genome of Kochia scoparia and the Mechanism of Glyphosate Resistance via Transposon-Mediated EPSPS Tandem Gene Duplication

The paper reports a draft genome of kochia and identifies a mobile genetic element involved in EPSPS gene duplication, leading to glyphosate resistance.