Erysiphe alliariicola

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Erysiphe alliariicola
Erysiphe-alliariicola-cofa.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Fungi
Division: Ascomycota
Class: Leotiomycetes
Order: Helotiales
Family: Erysiphaceae
Genus: Erysiphe
Species:
E. alliariicola
Binomial name
Erysiphe alliariicola
M. Bradshaw & U. Braun, 2024

Erysiphe alliariicola is a species of powdery mildew in the family Erysiphaceae. It is found on plants in the genus Alliaria in Eurasia and North America (where A. petiolata is an invasive species) [1] .

Contents

Description

The fungus forms thin, white irregular patches on the leaves of its host. Erysiphe alliariicola, like most Erysiphaceae, is highly host-specific and infects only Alliaria . [2] It has also been reported as infecting Thlaspi in North America. [3]

Taxonomy

The fungus was formally described in 2024 by Michael Bradshaw and Uwe Braun. The species epithet refers to the host genus, Alliaria . The type specimen was collected in Germany. [4] E. alliariicola was formerly considered conspecific with Erysiphe crucifearum but was split from this species on the basis of genetic analysis. [2]

References

  1. ↑ Welk, Erik; Schubert, Konstanze; Hoffmann, Matthias H. (2002). "Present and potential distribution of invasive garlic mustard (Alliaria petiolata) in North America". Diversity and Distributions. 8 (4): 219–233. doi:10.1046/j.1472-4642.2002.00144.x. ISSN   1472-4642.
  2. 1 2 Braun, Uwe (2024-05-06). "Contributions to the knowledge of the phylogeny and taxonomy of the Erysiphaceae (powdery mildews) – part 2". Sydowia. 76: 113–145. doi:10.12905/0380.sydowia76-2024-0113. ISSN   0082-0598.
  3. ↑ Zhang, Julia X.; Greatens, Nicholas; Arenz, Brett; Flynn, Jennifer; Anderson, James A. (2025-06-23). "First Report of Powdery Mildew Caused by Erysiphe alliariicola on Pennycress (Thlaspi arvense) in North America". Plant Disease: PDIS–10–24-2055-PDN. doi:10.1094/PDIS-10-24-2055-PDN. ISSN   0191-2917.
  4. ↑ Bradshaw, Michael; Braun, Uwe; Mitchell, James K.; Crouch, Uma; LaGreca, Scott; Pfister, Donald H. (2025-01-02). "Phylogeny and taxonomy of the genera of Erysiphaceae, part 6: Erysiphe (the "Microsphaera lineage" part 2)". Mycologia. 117 (1): 110–165. doi:10.1080/00275514.2024.2386230. ISSN   0027-5514. PMID   39495585.
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