Cystotheca kusanoi

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Cystotheca kusanoi
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Fungi
Division: Ascomycota
Class: Leotiomycetes
Order: Erysiphales
Family: Erysiphaceae
Genus: Cystotheca
Species:
C. kusanoi
Binomial name
Cystotheca kusanoi
(Henn. & Shirai) S.E. Cho & H.D. Shin, 2018
Synonyms
  • Sphaerotheca kusanoiHenn. & Shirai, 1901

Cystotheca kusanoi is a species of powdery mildew in the family Erysiphaceae. It is found in Asia on plants in the genus Quercus . [1]

Contents

Description

Many Cystotheca species form dense, white or brown, distorting patches on the leaves of their hosts. Some species in this genus are also known to cause witch's-broom galls on their hosts. Cystothecakusanoi, like most Erysiphaceae, is fairly host-specific and only infects species in the genus Quercus . C. kusanoi does not form conspicuous fibrosin bodies in fresh conidia. [2]

Taxonomy

The fungus was formally described in 1901 by Hennings and Shirai with the basionym Sphaerotheca kusanoi, but was considered conspecific with Cystotheca lanestris before the new combination Cystothecakusanoi was created by S.E. Cho and H.D. Shin in 2018. [3] C. lanestris was previously also reported on Castanea mollissima , Castanopsis tibetana , Lithocarpus dealbatus , Lithocarpus harlandii , and Lithocarpus edulis in Asia. These records are unclear and in need of revision. Cystotheca lanestris is now considered confined to North America. [1]

References

  1. 1 2 Bradshaw, Michael; Braun, Uwe; Quijada, Luis; Coombes, Allen J.; Contreras-Paredes, Carlos; Pfister, Donald H. (2023-05-04). "Phylogeny and taxonomy of the genera of Erysiphaceae, part 3: Cystotheca". Mycologia. 115 (3): 427–436. doi:10.1080/00275514.2023.2194172. ISSN   0027-5514. PMID   37159342.
  2. ↑ Guan, Guan‐Xiu; Liu, Shu‐Yan; Murray, Timothy D.; Tang, Shu‐Rong (2022). "Occurrence of powdery mildew caused by Cystotheca kusanoi on Oak trees in China". Forest Pathology. 52 (5). doi:10.1111/efp.12761. ISSN   1437-4781.
  3. ↑ Cho, Sung-Eun; Cho, Sung-Eun; Takamatsu, Susumu; Lee, Sang Hyun; Shin, Hyeon-Dong (2018). "Cystotheca kusanoi comb. nov.: a redescription with new morphological observations". Mycotaxon. 133 (3): 401––414. doi:10.5248/133.401.
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