Fungalpedia – Note 1011, Anthopsis
Anthopsis. Fil. March., A. Fontana & Luppi Mosca.
Citation when using this data: Tian Q et al. 2021 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank., Fig 1
Classification: Incertae sedis, Incertae sedis, Incertae sedis, Incertae sedis, Pezizomycotina, Ascomycota, Fungi
Saprobic on soil, foam of a river, or pathogenic on human subcutaneous infection. Colonies cream-colored, light mouse grey to dark grey, velvety-woolly. Hyphae grey olivaceous when mature, septate, constrictions at the septa, smooth-walled, guttulate or aguttulate, with or without oil droplets. Sexual morph: Undetermined. Asexual morph: hyphomycetous. Conidiophores absent or rarely reduced to a short cell basal to the conidiogenous cells. Conidiogenous cells enteroblastic, inverted, phialidic, clustering as two to eight ampulliform phialides, arising from a hyphal swelling, with distinct sessile collarettes at the base, near the point where the phialide is inserted on the hypha, forming disk flowers of a capitulum, sometimes integrated, with a sessile collarette, sub-hyaline to pale olivaceous. Conidia aggregated, but easily dispersed, ellipsoidal or pyriform, mature conidia deltoid, sometimes ellipsoidal to subspherical in chains, aseptate, hyaline to pale brown, grey olivaceous, straight at one side or sometimes concave, smooth-walled, aguttulate, without oil droplets, without a gelatinous sheath or appendages. Spermatial state absent. Chlamydospores absent (Rayner 1970, Moussa et al. 2016)
Notes – Marchisio et al. (1977) introduced Anthopsis Fil. March. et al. to accommodate Anthopsis deltoidei Fil. March. et al. which was isolated from soil in Italy. Subsequently,
A. catenata Oorschot et al. and A. microspora K. Ando & Tubaki were added, but represented by only one or two strains with a brief description (van Oorschot et al. 1982, Ando & Tubaki 1985, Moussa et al. 2016). Anthopsis is reported from Germany, Italy, and Japan and are isolated from soil and foam in stream (A. catenata, A. deltoidei and A. microspora) and a human pathogen causing phaeohyphomycosis (A. deltoidei) (Marchisio et al. 1977, van Oorschot et al. 1982, Ando & Tubaki 1985). Species are dematiaceous hyphomycetes with melanized filamentous thalli, inverted, ampulliform phialides with conidiogenous loci, flower-shaped phialides and collarettes and triangular conidia, sometimes in chains. The conidiogenous cells resemble Phialophora Medlar, but Anthopsis has unique triangular conidia. The type species A. deltoidei clustered with Cyphellophora G.A. de Vries in phylogenetic analysis and was transferred to Cyphellophoraceae (Moussa et al. 2016, this study). However, The LSU sequence of Anthopsis catenata (CBS 492.81) is shown that is not related to any species of Cyphellophoraceae (Moussa et al. 2016 and this study). Thus, our tree does not include the unrelated sequence and the placement of Anthopsis in Cyphellophoraceae is confirmed based on the asexual morph species, Anthopsis deltoidei and
A. microspora.
Type species: Anthopsis deltoidea Fil. March., A. Fontana & Luppi Mosca.
Other accepted species: Species Fungorum – search Anthopsis.
Figure 1 – Anthopsis deltoidea (redrawn from Seifert et al. 2011). a, b Conidiogenous cells have a typical basal collarette. c Conidia. Scale bar: 5 μm.
References
Entry by
Qing Tian, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
Published online 16 December 2021