Arthrocladiella

Arthrocladiella
Arthrocladiella mougeotii on Lycium depressum in the UK.
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Leotiomycetes
Order:	Helotiales
Family:	Erysiphaceae
Genus:	Arthrocladiella Vassilkov, 1960
Species:	A. mougeotii
Binomial name
Arthrocladiella mougeotii (Lév.) Vassilkov, 1963
Synonyms
Microsphaera mougeotiiLév., 1851 Calocladia mougeotiiLév., 1851 Erysiphe mougeotii(Lév.) de Bary, 1870 Podosphaera mougeotii(Lév.) Quél., 1875 Erysiphe lyciiLasch, 1846 Microsphaera lycii(Lasch) Sacc. & Roum., 1881 Arthrocladia lycii(Lasch) Golovin, 1956 Arthrocladiella lycii(Lasch) Vassilkov, 1960

Arthrocladiella is a genus of fungi in the family Erysiphaceae. The monotypic genus contains the single species Arthrocladiella mougeotii, which forms powdery mildew on leaves of plants in the genus Lycium. ^[1]

Description

The fungus forms white irregular patches of mycelium on the leaves of its host. Like most powdery mildew species, Arthrocladiella mougeotii is highly host-specific and only infects a few species in the genus Lycium . This species is found across the world, in any habitats where its host species occur. The type specimen was collected in France on Lycium europaeum . This species has also been recorded from Lycium barbarum , cestroides , chinense , dasystemum , depressum , and ruthenicum . Phyllactinia chubutiana occurs on the same hosts in some parts of the world, and sometimes occurs together with Arthrocladiella mougeotii on the same plants. ^[2]

Taxonomy

The fungus was formally described in 1851 by Léveillé with the basionym Calocladia mougeotii. The species was transferred to the genus Erysiphe in 1870 but was for some time known under the name Erysiphe lycii, a nomen nudum from 1846. The monotypic genus Arthrocladia was introduced in 1956 for this species but published invalidly. The current combination of Arthrocladiella mougeotii was published in 1963 by Vassilkov. ^[3]

References

1. Braun, Uwe; Cook, Roger T. A. (2012). Taxonomic manual of the Erysiphales (powdery mildews). CBS biodiversity series. Utrecht: CBS-KNAW fungal biodiversity centre. ISBN   978-90-70351-89-2.
2. Elfar, Karina; Bustamante, Marcelo I.; Rooney-Latham, Suzanne; Eskalen, Akif; Miller, Tom (2024-09-01). "Arthrocladiella mougeotii Causing Powdery Mildew on Goji Berry Plants ( Lycium barbarum and L. chinense ) and Mixed Infections with Phyllactinia chubutiana in California". Plant Disease. 108 (9): 2668–2671. doi:10.1094/PDIS-04-24-0736-SC. ISSN   0191-2917.
3. Braun, Uwe; Kirk, Paul M. (2023). "The nomenclature of Arthrocladiella (Erysiphaceae)" (PDF). Schlechtendalia. 40: 269–271.