Plant Pathogens and Resistance

Diverse haplotypes at a complex Solanum americanum locus confer resistance to Phytophthora infestans and P. capsici

The paper identifies two resistance genes from Solanum americanum that confer resistance to Phytophthora pathogens and shows their NLR cluster evolves in response to multiple pathogens.

Development of a differential panel to identify Peronospora belbahrii races in sweet basil (Ocimum basilicum)

This study develops a differential panel of basil cultivars to identify three distinct races of Peronospora belbahrii based on virulence profiles against genetic resistance loci.

A rare recombination allows the redefinition of a major avirulence gene in the Phytophthora sojae genome

The study identifies a rare recombination event in Phytophthora sojae that redefines the avirulence gene recognized by Rps6, improving pathotyping and disease resistance strategies.

Vertical distribution of Phytophthora agathidicida oospore DNA in kauri forest soils: Implications for optimised sampling and disease monitoring

This study quantifies the vertical distribution of Phytophthora agathidicida oospore DNA in kauri forest soils, showing that shallow sampling is sufficient for sensitive detection.

Microtubules in the coenocyte Phytophthora function in nuclear positioning and sustaining tip growth

This study investigates microtubule organization and function in Phytophthora coenocytic hyphae, showing their role in nuclear positioning and sustaining tip growth.

Phosphoinositide-specific Phospholipase C 2 (SlPLC2) Facilitates Vesicle Formation and Modulates Immune Signaling in Tomato Phytophthora infestans Interactions

This study identifies SlPLC2 as a susceptibility factor that supports Phytophthora infestans infection by coordinating vesicle formation and early immune responses in tomato.

Phytophthora cinnamomi populations collected from avocado in the United States exhibit high adaptive capacity to climate and disease control methods

This study analyzes 125 Phytophthora cinnamomi isolates from U.S. avocado orchards, revealing phenotypic diversity in growth, fungicide sensitivity, and virulence, highlighting the need for improved disease management strategies.

A multivirulent Plasmopara viticola strain from Cilaos on Reunion Island breaks down Rpv1, Rpv3.1 and Rpv10 mediated resistance of grapevine

The paper identifies a Plasmopara viticola strain from Reunion Island that breaks down three grapevine resistance loci, Rpv1, Rpv3.1, and Rpv10, through genomic and pathogenicity analyses.

Metabolic biomarker-based phenotyping unveils quantitative effects of plant resistance and pathogen aggressiveness in the grapevine (Vitis spp.) - downy mildew (Plasmopara viticola) pathosystem.

The paper quantifies the effects of plant resistance and pathogen aggressiveness in grapevine-downy mildew interactions using metabolic biomarkers.

Parallel adaptation and admixture drive the evolution of virulence in the grapevine downy mildew pathogen

This study identifies genetic factors driving virulence in the grapevine downy mildew pathogen through QTL mapping and population structure analysis, revealing both parallel adaptation and admixture as evolutionary mechanisms.

A rapid and accurate PCR-based method for mating-type determination in the heterothallic oomycete Plasmopara viticola, the causal agent of grapevine downy mildew

This paper develops two PCR-based markers to rapidly determine mating types in Plasmopara viticola, showing perfect concordance with crossing assays on 37 strains.

Adaptive transcriptional strategies underpin the host-specific virulence of the generalist oomycete Phytophthora capsici during early crown infection

This study identifies host-specific transcriptional strategies of Phytophthora capsici during early crown infection using transcriptomic analysis across four plant hosts.

Phylogenomics of Plasmopara halstedii reveals genomic regions associated with the breakdown of sunflower downy mildew resistance genes

The paper uses phylogenomic analyses to identify genomic regions linked to the breakdown of sunflower downy mildew resistance genes in Plasmopara halstedii.

Isolation and proteomic analysis of intracellular vesicles from the potato late blight pathogen Phytophthora infestans

This study isolates and analyzes intracellular vesicles from Phytophthora infestans to identify vesicle-associated proteins and their potential cargo, including effectors and secretory proteins.

Genomic Architecture of the Resistance to Phytophthora Cactorum 2 (RPc2) Locus in Strawberry (Fragaria x ananassa)

This study fine-maps the RPc2 resistance locus in strawberries to 546 kb, identifies candidate genes, and reveals the genetic architecture and haplotype distribution of resistance to Phytophthora crown rot.

Multiple geographic breakdown events of the Rpv1/Rpv3.1 pyramided resistance in grapevine by Plasmopara viticola.

The paper reports the breakdown of Rpv1 and Rpv3.1 resistance in grapevine due to virulent Plasmopara viticola isolates overcoming both resistance genes in multiple vineyards.

Direct quantitative assessment using digital droplet PCR and field-scale spatial distribution of Plasmopara viticola oospores in vineyard soil

This study quantifies Plasmopara viticola oospore concentration in vineyard soil using ddPCR and reveals spatial patterns, showing higher oospore accumulation below vine stocks.

Intraspecies sequence-graph analysis of the Phytophthora theobromicola genome reveals a dynamic structure and variable effector repertoires

The paper analyzes the genome of Phytophthora theobromicola using long-read sequencing and comparative genomics to reveal dynamic structure and variable effector repertoires.

Assessing the in planta efficacy of oxathiapiprolin as a potential treatment for kauri dieback disease

This study evaluates oxathiapiprolin's protective and curative efficacy against kauri dieback disease in planta, finding it effective for prevention but not for curing established infections.

Ultra-sensitive detection of Phytophthora pluvialis by real-time PCR targeting a mitochondrial gene

This paper develops a highly sensitive qPCR assay for detecting Phytophthora pluvialis in forest samples, improving detection sensitivity and enabling early asymptomatic detection.

Detection of resistance in Phytophthora infestans to the carboxylic acid amide (CAA) fungicides using digital droplet PCR.

This paper develops a ddPCR assay to detect CAA fungicide resistance in Phytophthora infestans by identifying mutations in the CesA3 gene at position 1105.

Pathogenicity and genome assembly of a Pythium aphanidermatum isolate causing damping-off in amaranth in controlled environment agriculture

This study characterizes the pathogenicity and genome of a Pythium aphanidermatum isolate causing damping-off in amaranth, revealing its virulence factors and genome assembly.

Potato Late Blight Control with a Botanical Product and Reduced Copper Applications

This study evaluates the efficacy of Frangula alnus bark and reduced copper applications in controlling potato late blight, finding that F. alnus reduces disease severity but not consistently, while copper has a consistent effect.

Dynamics in the Phytophthora capsici effector AVR3a11 confirm the core WY domain fold

The paper determines the solution structure and dynamics of AVR3a11, confirming its core WY domain fold and highlighting conformational flexibility in the N-terminal helix.

Recombination landscape and karyotypic variations revealed by linkage mapping in the grapevine downy mildew pathogen Plasmopara viticola

The paper constructs high-density linkage maps for Plasmopara viticola to study recombination patterns and karyotypic variations, revealing gene-rich regions with higher recombination rates and anomalies in 5% of offspring.

Downy mildew effector HaRxL106 interacts with the transcription factor BIM1 altering plant growth, BR signaling and susceptibility to pathogens

Pangenome graph analysis reveals extensive effector copy-number variation in spinach downy mildew

The paper constructs a pangenome graph for Peronospora effusa, revealing extensive copy-number variation in pathogenicity genes and transposable elements contributing to genomic diversity.

Transcriptional profiling during infection of potato NLRs and Phytophthora infestans effectors using cDNA enrichment sequencing

This study compares RNAseq and cDNA enrichment sequencing techniques to analyze gene expression in potato infected with Phytophthora infestans, finding that cDNA enrichment provides better target gene representation and quantification during early infection.

Heterogeneity in establishment of polyethylene glycol-mediated plasmid transformations for five forest pathogenic Phytophthora species

This study evaluates PEG-mediated plasmid transformation in five forest Phytophthora species, finding successful transformation only in P. cactorum and P. ramorum, with variable results in the latter.

The genome of the oomycete Peronosclerospora sorghi, a cosmopolitan pathogen of maize and sorghum, is inflated with dispersed pseudogenes

The paper characterizes the genome, transcriptome, and mitogenome of P. sorghi, revealing a large genome size and gene count due to retrotransposition and pseudogenization.