Plant Pathogens and Resistance

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.

Development of a stable transformation method for Saprolegnia parasitica

The paper develops a stable transformation method for Saprolegnia parasitica using a mutated CYP51 gene from Achlya hypogyna to confer imidazole resistance.

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.

Phytophthora capsici carries and differentially expresses genes that encode key enzymes for the synthesis, transport and processing of small RNAs

This study identifies and analyzes the small RNA pathway in Phytophthora capsici, showing its presence and differential expression during infection.

Microscopical and molecular characterization of the infection cycle of Phytophthora betacei during disease development on tree tomato (Solanum betaceum).

This study characterizes the infection cycle of Phytophthora betacei in tree tomato using microscopy and molecular methods, revealing differences from Phytophthora infestans.

Phenotypic and Genotypic Characterization of the Population of Phytophthora infestans in Brazil

This study characterizes the population structure of P. infestans in Brazil by analyzing mating type, mitochondrial DNA haplotypes, microsatellite genotypes, and mefenoxam sensitivity across isolates from tomato and potato plants.

Distribution and association of biophysical factors with onion (Allium cepa L.) downy mildew (Peronospora destructor) disease epidemics in northwestern Ethiopia.

The paper assesses the distribution and intensity of onion downy mildew in northwestern Ethiopia and identifies biophysical factors associated with disease epidemics.

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.

The RXLR-EER Motif Determines an Unconventional Secretion Pathway Associated with Extracellular Vesicle Production

This study shows the RXLR-EER motif directs RXLR effectors to an unconventional secretion pathway linked to extracellular vesicles in Phytophthora infestans.

An effector from the potato late blight pathogen bridges ENTH-domain protein TOL9a to an activated helper NLR to suppress immunity

This paper identifies an effector from Phytophthora infestans that bridges NbTOL9a to an activated NLR to suppress immunity, revealing a novel structural and functional mechanism.

Transcriptional response to Phytophthora root rot in raspberry identifies RiABP19, a Germin-like protein (GLP) gene with a putative role in resistance

This study identifies RiABP19, a Germin-like protein gene, as a key player in raspberry resistance to Phytophthora root rot through transcriptomic analysis and functional assays.

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.

Pathogen effector forms a hexameric phosphatase holoenzyme with host core enzyme to promote disease

This study reveals the structure of a hexameric phosphatase holoenzyme formed by a pathogen effector and host enzyme, showing enhanced stability and virulence function.

Genetic diversity and population structure of Phytophthora infestans in Guatemala and Honduras

This study analyzes the genetic diversity and population structure of Phytophthora infestans in Guatemala and Honduras using molecular markers, identifying four main clonal lineages and highlighting the predominance of EU_13_A2.

Evolution of resistance breaking in spinach downy mildew revealed through pangenome graph analysis

The paper uses pangenome graph analysis of 19 spinach downy mildew isolates to study the evolution of resistance-breaking traits and identifies effector candidates associated with resistance breakdown.

Identification of MARVELlous Protein Markers for Phytophthora infestans Extracellular Vesicles

This study identifies PiMDP1 and PiMDP2 as molecular markers for extracellular vesicles in Phytophthora infestans, revealing their association with RxLR effectors and their role in infection.

Membrane Proteome of Phytophthora parasitica Zoospores: How Does Sensing Occur?

The paper identifies membrane proteins in Phytophthora parasitica zoospores and shows some are localized to flagella, suggesting roles in sensing and movement.

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.

Conservation and discovery of regulatory motifs across oomycetes through comparative genomic analysis

This study identifies conserved transcription factor binding motifs in oomycetes using comparative genomics, revealing key regulatory mechanisms and evolutionary conservation.

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

A CELL BIOLOGY STUDY REVEALS NEW INSIGHTS INTO THE TRANSPORT MECHANISMS OF OOMYCETE EFFECTORS

This study identifies the RXLR-EER motif as critical for directing oomycete effectors to the haustorial neck for host cell entry.

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.

Evaluating the Biocontrol Potential of Pythium oligandrum and Serratia proteamaculans in Controlling Phytophthora plurivora in European beech (Fagus sylvatica)

This study evaluates the biocontrol potential of Pythium oligandrum and Serratia proteamaculans against Phytophthora plurivora in European beech, showing significant pathogen inhibition in vitro and greenhouse conditions.

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.

A qPCR assay for the detection of Phytophthora abietivora, an emerging pathogen on fir species cultivated as Christmas trees

This paper develops a qPCR assay for detecting Phytophthora abietivora in soil eDNA from fir trees and validates its sensitivity and specificity.