Weed Control and Herbicide Applications

Insecticide increases glyphosate resistance in Ipomoea purpurea

This study shows that insecticide exposure increases glyphosate resistance in Ipomoea purpurea and weakens selection for glyphosate resistance.

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.

Distribution of target-site resistance mechanisms to nicosulfuron and glyphosate in Amaranthus palmeri accessions from two different regions of Turkiye

The paper examines target-site resistance mechanisms to nicosulfuron and glyphosate in Amaranthus palmeri from two regions in Turkiye, finding regional differences in mutation prevalence and gene copy number.

Tolerance to herbicide drift in "weedy" species is context-dependent and driven by early vegetative growth

This study examines how sublethal herbicide drift affects fitness of weed species across different agro-ecological contexts, finding context-dependent tolerance and links to developmental traits.

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.

First case of three-way multiple herbicide resistance in Amaranthus palmeri outside the Americas: Resistance mechanisms and alternative management strategies

DIFFERENTIAL PHOTOSYNTHETIC RESPONSES TO GLUFOSINATE AMMONIUM IN TWO GRASS WEEDS: Lolium multiflorum AND Echinochloa crus-galli.

This study compares the sensitivity of two grass weeds to glufosinate ammonium, finding that barnyardgrass (C4) shows greater sensitivity than ryegrass (C3) due to differences in photosynthetic metabolism and oxidative stress response.

Fendioxypyracil Exhibits Potent Inhibition of PPO-Resistant Mutant Enzymes and Robust Activity Against PPO-Resistant Amaranthus

This study evaluates fendioxypyracil's efficacy against PPO-resistant Amaranthus mutants and finds it maintains low IC50 values and strong weed control in field trials.

Polygenic adaptation from standing variation underlies rapid evolution under anthropogenic selection in an agricultural weed

The paper analyzes herbicide resistance in blackgrass, showing TSR mutations arose recently while NTSR evolved from pre-existing genetic variation.

Investigating the mechanism of resistance to indaziflam in Poa annua

This study identifies a novel SNP in coatomer subunit gamma and a CYP81A91_A gene as potential contributors to indaziflam resistance in Poa annua through RNA-seq and variant calling.

Resistance to protoporphyrinogen oxidase inhibitor herbicides in giant ragweed (Ambrosia trifida) is associated with a novel R98Q target-site mutation in PPO2

This study identifies a novel R98Q mutation in PPO2 as the target-site resistance mechanism for PPO-inhibitor herbicides in giant ragweed population VRC, while TMS shows resistance without target-site alteration.

Changes in cuticle composition co-regulate drought and herbicide resistance in horseweed (Erigeron canadensis)

This study shows drought stress alters cuticle composition and gene expression in horseweed, reducing glyphosate absorption and increasing herbicide resistance.

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.

Biochemical Characterization of Fatty Acid Thioesterase Target Site Mutants and their Implication on Herbicide Resistance

This study evaluates the potential for target-site resistance to the herbicide cinmethylin by analyzing amino acid substitutions in FAT A and FAT B, finding limited practical risk of resistance evolution.

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.

Phylogenetic signal in herbicide resistance evolvability, and the use of phylogenies to predict herbicide resistance risk

The paper shows phylogenetic signal in herbicide resistance evolvability and demonstrates machine learning models can predict resistance risk using phylogenetic distances.

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.

Novel Protoporphyrinogen oxidase 1 mutations endow resistance to PPO-inhibiting herbicides in Bassia scoparia

This study identifies PPO1 mutations in Bassia scoparia that confer resistance to PPO-inhibiting herbicides, with fomesafen remaining effective against resistant biotypes.

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.

Insights into the molecular mechanism and management of resistant Echinochloa crus-galli biotypes from the Philippines to acetolactate synthase inhibitor bispyribac-sodium

This study identifies resistance mechanisms in Echinochloa crus-galli biotypes from the Philippines to the ALS inhibitor bispyribac-sodium, revealing genetic and metabolic factors contributing to resistance.

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.

Promiscuous cytochrome P450s confer metabolic resistance to synthetic auxin herbicides in the weedy grass Echinochloa phyllopogon

This study identifies promiscuous CYP81A P450 enzymes in Echinochloa phyllopogon that confer resistance to synthetic auxin herbicides through metabolic detoxification.

Integrated multi-omics analysis reveals divergent molecular responses in Palmer amaranth (Amaranthus palmeri) biotypes susceptible and resistant to glyphosate

This study compares molecular responses in glyphosate-resistant and susceptible Palmer amaranth biotypes using multi-omics analysis, revealing distinct metabolic and transcriptional changes.

Metabolomic profiling of glyphosate resistance evolution in green alga Chlamydomonas reinhardtii

This study uses metabolomic profiling to analyze glyphosate resistance evolution in Chlamydomonas reinhardtii, revealing metabolic changes and fitness trade-offs associated with resistance.

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.

Wheat - black-grass competition is a non-zero-sum game influenced by root growth

This study investigates wheat-black-grass competition, finding that black-grass's competitive advantage stems from vigorous root growth during winter, and that crop competitiveness is linked to root growth and not a zero-sum game.

Off target: herbicides applied in cereal fields exclude non-competitive species, while replacing them by competitive weeds.

This study shows herbicide quantity negatively impacts weed abundance and diversity more than application frequency, while fungicide frequency has indirect long-term effects on weed suppression.

Subgenome dominance of ALS target site mutations impacts herbicide resistance in allohexaploid Echinochloa crus-galli

This study examines how subgenome-specific ALS mutations and expression levels affect herbicide resistance in allohexaploid Echinochloa crus-galli.

Extrachromosomal DNA-mediated glutamine synthetase 2 (GS2) amplification enables glufosinate resistance in Amaranthus palmeri

The paper investigates how extrachromosomal DNA (eccDNA) contributes to glufosinate resistance in Palmer amaranth by amplifying the GS2 gene.