Powdery Mildew Fungal Diseases

Powdery mildew fungi block plant vacuolar traffic to suppress immunity

This study shows that powdery mildew fungi inhibit the vacuolar trafficking pathway to suppress NLR-mediated immunity in barley, but this inhibition is temporary and can be reversed by later-secreted effectors.

Effector-host networks in the barley powdery mildew pathosystem reveal significant targeting of ubiquitin-associated proteins and transcriptional regulators

The paper identifies effector-host protein interactions in barley powdery mildew, revealing key targets involved in ubiquitin processes and transcriptional regulation.

Arabidopsis Acyl-CoA Binding Protein 4, ACBP4, functions in developmentally programmed endoreduplication

This study identifies ACBP4's role in promoting endoreduplication in Arabidopsis, enhancing powdery mildew spore production and affecting plant growth traits.

The first chromosome-scale genome assembly of Blumeria graminis f. sp. avenae provides insights into genome evolution and host specialization

An extended N-terminus restrains the plant cell death-inducing ability of the catalytically competent ribonuclease domain in a pea powdery mildew RALPH effector

This study characterizes EpRALPH11, a pea powdery mildew RALPH effector, showing its RNase activity and how its N-terminal region suppresses cell death induction.

Tracking the evolutionary trajectory of a young hybrid plant pathogen

The paper tracks the evolutionary trajectory of a recently emerged hybrid plant pathogen, showing it persists as an independent lineage with genomic changes shaped by selection and ecological isolation.

Transcriptomic analysis of FER-RALF-LRX pathway mutants suggests constitutive gene expression defects contribute to powdery mildew resistance

The paper analyzes transcriptomic responses of FER-RALF-LRX pathway mutants to Ecr infection, finding limited transcriptional changes but altered basal gene expression related to cell wall metabolism and immunity.

Effector dsRNA delivery via MgFe-layered double hydroxide nanocarriers confers prolonged protection against powdery mildew in pea

This study develops MgFe-LDH nanocarriers for delivering fungal effector dsRNA to pea plants, providing prolonged protection against powdery mildew through sustained gene silencing.

Dynamic gene gain and loss during the divergence of obligate biotrophic powdery mildew pathogens

This study sequenced genomes of powdery mildew fungi to compare effector complements and gene loss across species, revealing divergent patterns in gene expansion and contraction.

Endogenous RALF peptide function is required for powdery mildew host colonization

This study shows that endogenous RALF peptides, perceived by FER and LLG-LRX complexes, are required for powdery mildew colonization of Arabidopsis, with RALF function influencing cell wall remodeling and apoplastic pH.

Proteogenomics of Blumeria hordei supports RNA and protein coding innovative potential derived from transposable elements

This study uses proteogenomics to show that transposable elements in Blumeria hordei generate novel transcripts and proteins.

Dual recognition of structurally unrelated mildew effectors underlies the broad-spectrum resistance of Pm3e in wheat

The paper identifies how two wheat resistance alleles, Pm3d and Pm3e, recognize structurally diverse mildew effectors to confer broad-spectrum resistance.

Genetic mapping, marker development, and identification of candidate genes for powdery mildew resistance in Malus baccata 'Jackii'

This study constructs genetic maps, develops markers, and identifies candidate genes for powdery mildew resistance in Malus baccata 'Jackii' using SNP and SSR data from an F1 population.

CRISPR-Cas9 editing of grapevine clade V-related mlo genes revealed new insights into the contribution of each mlo gene to grapevine powdery mildew resistance (Erysiphe necator) and plant development.

The paper uses CRISPR-Cas9 to edit MLO genes in grapevine, revealing their roles in powdery mildew resistance and plant development.

Virulence on Pm4 kinase-based resistance is determined by two divergent wheat powdery mildew effectors

The paper identifies AvrPm4, a mildew effector recognised by the wheat resistance gene Pm4, and shows that virulent isolates evade resistance via SvrPm4, which suppresses AvrPm4-induced cell death.

The Cucumis sativus kinome: Identification, annotation, and expression patterns in response to powdery mildew infection

This paper identifies and characterizes the cucumber kinome, revealing its genomic distribution, classification, and expression patterns in response to powdery mildew infection.

Evidence of a distinct Blumeria graminis f. sp. tritici pathotype structure in Australian wheat powdery mildew: implications for resistance breeding.

The study identifies six distinct pathotype groups in Australian Bgt isolates and highlights wheat varieties with resistance genes effective against these isolates.

Multi-locus phylogenetic network analysis of Ampelomyces mycoparasites isolated from diverse powdery mildews in Australia and the generation of two de novo genome assemblies

The paper isolates and analyzes 20 new Ampelomyces strains from Australian powdery mildews, revealing four molecular taxonomic units and generating two high-quality genome assemblies.

Dissection of the Ren6 and Ren7 powdery mildew resistance loci in Vitis piasezkii DVIT2027 using phased parental-progeny genomes and intraspecific locus graph reconstruction

The paper identifies NLR genes associated with powdery mildew resistance loci Ren6 and Ren7 in Vitis piasezkii by analyzing phased genomes and structural variation across multiple accessions.

Oligogalacturonides, produced by enzymatic degradation of sugar beet by-products, confer partial protection against wheat powdery mildew

The paper produces and tests oligogalacturonides (OGs) from sugar beet by-products for their ability to protect wheat against powdery mildew, finding partial protection with one OG mixture.

Clade V MLO proteins are bona fide host susceptibility factors required for powdery mildew pathogenesis in Arabidopsis

Resources for molecular studies of unculturable obligate biotrophic fungal plant pathogens using their saprotrophic relatives

The paper establishes Arachnopeziza species as a model system for studying powdery mildew fungi by generating their genome assemblies and demonstrating genetic modification capabilities.

Combining pangenomics and population genetics finds chromosomal re-arrangements, accessory-like chromosome segments, copy number variations and transposon polymorphisms in wheat and rye powdery mildew

The paper combines pangenomics and population genetics to identify chromosomal rearrangements, copy number variations, and transposon activity in wheat and rye powdery mildew isolates.

Population genomics and molecular epidemiology of wheat powdery mildew in Europe

This study analyzes the population genomics and molecular epidemiology of wheat powdery mildew in Europe, revealing population structure linked to wind patterns and identifying loci under selection, including fungicide targets and avirulence genes.

Identification of INOSITOL PHOSPHORYLCERAMIDE SYNTHASE 2 (IPCS2) as a new rate-limiting component in Arabidopsis pathogen entry control

This study identifies IPCS2 as a key enzyme in sphingolipid biosynthesis that regulates polar secretion of PEN3 to block fungal entry in Arabidopsis.

Mapping and characterization of a novel powdery mildew resistance locus (PM2) in Cannabis sativa L.

This study identifies and maps a novel powdery mildew resistance locus (PM2) in Cannabis sativa using bulk-segregant analysis and high-throughput sequencing, and develops genetic markers for breeding.

Comparative transcriptomics of Lathyrus sativus reveals accession-specific resistance responses against Erysiphe pisi

This study uses dual RNA-seq to compare resistance responses in four Lathyrus sativus accessions against Erysiphe pisi, identifying distinct defense mechanisms and effector genes.

Powdery mildew exploits host plastoglobuli functions via DGAT3 and FBN2 for proliferation

This study identifies DGAT3 and FBN2 as key factors in powdery mildew exploitation of Arabidopsis plastoglobuli for pathogen proliferation.

Genomic surveillance and molecular evolution of fungicide resistance in European populations of wheat powderymildew

In 415 European and Mediterranean wheat powdery mildew genomes, fungicide-resistance mutations rose over time with regional patterns; demethylation-inhibitor resistance at cyp51 emerged at least twice independently and spread.

A powdery mildew core effector protein targets host endosome tethering complexes HOPS and CORVET

The paper identifies CSEP0214 as a core effector protein from Blumeria hordei that interacts with barley VPS18, disrupting endosomal tethering complexes and host immunity.