ArticleMolecular plant pathology2016
Characterization of ApB73, a virulence factor important for colonization of Zea mays by the smut Ustilago maydis.
Article in Molecular plant pathology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 42 citations in OpenAlex.
- Ustilago maydis Phosphatidic Acid and Phosphatidylserine-Targeting Secreted Lipase Lip3 Is Involved in Pathogenesis.Molecular plant pathology · 2026Article
- Pathogenic fungus Ustilago maydis exploits the lateral root regulators to induce pluripotency in maize shoots.The New phytologist · 2026Article
- Understanding the Rice Fungal Pathogen Tilletia horrida from Multiple Perspectives.Rice (New York, N.Y.) · 2022Review
- Effector-mediated relocalization of a maize lipoxygenase protein triggers susceptibility to Ustilago maydis.The Plant cell · 2022Article
- Article
- TOPLESS promotes plant immunity by repressing auxin signaling and is targeted by the fungal effector Naked1.Plant communications · 2022Article
- A Novel Core Effector Vp1 Promotes Fungal Colonization and Virulence ofJournal of fungi (Basel, Switzerland) · 2021Article
- mRNA Inventory of Extracellular Vesicles fromJournal of fungi (Basel, Switzerland) · 2021Article
- The Pleiades are a cluster of fungal effectors that inhibit host defenses.PLoS pathogens · 2021Article
- Population Genomics of the Maize Pathogen Ustilago maydis: Demographic History and Role of Virulence Clusters in Adaptation.Genome biology and evolution · 2021Article
- Effectors with Different Gears: Divergence ofJournal of fungi (Basel, Switzerland) · 2020Article
- Insertion Pool Sequencing for Insertional Mutant Analysis in Complex Host-Microbe Interactions.Current protocols in plant biology · 2019Article
- Systematic Y2H Screening Reveals Extensive Effector-Complex Formation.Frontiers in plant science · 2019Article
- The core effector Cce1 is required for early infection of maize by Ustilago maydis.Molecular plant pathology · 2018Article
- In vivo insertion pool sequencing identifies virulence factors in a complex fungal-host interaction.PLoS biology · 2018Article
- The Biotrophic Development ofThe Plant cell · 2018Article
- Comparative Genomics of Smut Pathogens: Insights From Orphans and Positively Selected Genes Into Host Specialization.Frontiers in microbiology · 2018Article
- Ustilago maydis effectors and their impact on virulence.Nature reviews. Microbiology · 2017Review
- Insights into Host Cell Modulation and Induction of New Cells by the Corn SmutFrontiers in plant science · 2017Review
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
The biotrophic fungus Ustilago maydis, the causal agent of corn smut disease, uses numerous small secreted effector proteins to suppress plant defence responses and reshape the host metabolism. However, the role of specific effectors remains poorly understood. Here, we describe the identification of ApB73 (Apathogenic in B73), an as yet uncharacterized protein essential for the successful colonization of maize by U. maydis. We show that apB73 is transcriptionally induced during the biotrophic stages of the fungal life cycle. The deletion of the apB73 gene results in cultivar-specific loss of gall formation in the host. The ApB73 protein is conserved among closely related smut fungi. However, using virulence assays, we show that only the orthologue of the maize-infecting head smut Sporisorium reilianum can complement the mutant phenotype of U. maydis. Although microscopy shows that ApB73 is secreted into the biotrophic interface, it seems to remain associated with fungal cell wall components or the fungal plasma membrane. Taken together, the results show that ApB73 is a conserved and important virulence factor of U. maydis that localizes to the interface between the pathogen and its host Zea mays.
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