Sporocadus sorbi
Sporocadus sorbi (Wijayaw., Camporesi & K.D. Hyde) F. Liu, L. Cai & Crous, in Liu, Bonthond, Groenewald, Cai & Crous, Stud. Mycol. 92: 404 (2018) [2019]
Basionym: Seimatosporium sorbi Wijayaw., Camporesi & K.D. Hyde, in Ariyawansa et al., Fungal Diversity: 10.1007/s13225-015-0346-5, [128] (2015)
Index Fungorum number: IF 828421; Facesofungi number: FoF 00669
Etymology: Name after the host genus on which the taxon occurs.
Holotype: MFLU 15-0744 (Ariyawansa et al. 2015).
Saprobic on dead branches and stems of Sorbus torminalis L. Sexual morph: Undetermined. Asexual morph: Conidiomata 280–340 μm diam., 180–220 μm high, acervular, unilocular, subglobose, superficial, solitary, dark brown to black, apapillate ostiolate, dehiscent irregular. Conidiomata wall multi-layered, outer 20–30 μm wide, composed of brown, thin-walled cells of textura angularis, inner wall thin, hyaline. Conidiophores 8–20×1.5 −3 μm, long, cylindrical, branched, hyaline to sub-hyaline, smooth-walled. Conidiogenous cells holoblastic, annellidic, cylindrical, simple, integrated, determinate, hyaline. Conidia 13–16.5 × 5.5 − 7.5 μm (x̄ = 14.95 × 6.47 μm, n = 20), clavate or obovoid, occasionally truncate base, straight, with 3-septate, septa brown to dark brown, slightly constricted at the septa,
eguttulate, pale brown, with hyaline to sub-hyaline basal cell, smooth-walled, lacking appendages.
Culture characteristics: On PDA slow growing, white to light brown from above, pale brown from below, with sparse mycelium, flat, margin uneven, attaining a diam. of 2 cm in 7 days at 18 °C.
Material examined: ITALY, Province of Forlì-Cesena [FC], Fiumicello–Premilcuore, on dead leaf of Sorbus torminalis (Rosaceae), 8 May 2013, Erio Camporesi, IT 1233 (MFLU 15-0744, holotype); Ibid. (HKAS 88745, paratype), living cultures MFLUCC 14-0469, GUCC 65.
GenBank Numbers: LSU: KT281911, ITS: KT284774.
Notes: Ariyawansa et al. (2015) introduced Seimatosporium sorbi to Sporocadaceae. Liu et al. (2019) synonymized the taxa as Seimatosporium sorbi (Lui et al. 2019) in the same family.
Figure x. Sporocadus sorbi (Seimatosporium sorbi, holotype from Ariyawansa et al. 2015) a, b Conidiomata on dead leaf of Sorbus torminalis. c, d Cross section of conidiomata. e, i Different stages of conidiogenesis. j–m Conidia. Scale bars: c, d=150 μm, e–i=10 μm, j–m=5 μm.
References:
Ariyawansa HA, Hyde KD, Jayasiri SC, Buyck B et al. 2015 – Fungal diversity notes 111–252-taxonomic and phylogenetic contributions to fungal taxa. Fungal diversity: an international journal of mycology 75, 27–4.
Liu F, Bonthond G, Groenewald JZ, Cai L et al. 2019 – Sporocadaceae, a family of coelomycetous fungi with appendage-bearing conidia. Studies in Mycology 1, 287–415.
Last update: 04 Feb 2021