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Species MB515144 Sphaerodes mycoparasitica Vujan. 2009   Non abbreviated authority: Vujanovic Bibliography: Vujanovic, V.; Goh, Y.K., 2009, Mycological Research 113(10): 1173 (more info) Year of publication: 2009 Status of the name: basionym; legitimate MycoBank's opinion: currently used Classification: Fungi, Ascomycota, Pezizomycotina, Sordariomycetes, Hypocreomycetidae, Hypocreales, Ceratostomataceae, Sphaerodes Obligate synonym(s): none Morphic status: Teleomorph (anamorph connection(s) unknown or not recorded) Taxonomic synonym(s): Ordered by epithet name none Descriptions: Latin diagnosis Coloniae in agaro potato dextrosum lentior crescents, 4.0 cm ad 7d, floccose, pallido-brunneis. Hyphis septatis, ramosis, anastomosantibus, laevibus, palide fulvis, 2.5-5.0 µm diam compositum. Ascomata superficialia vel immersa, pyriformia vel globosa, ostiolata, flavo-brunnea, 250-300 µm longa, 200-280µm diam. Collum nul, conicum vel cylindricum, 30-75µm longum, (0-) 50-70 µm latum ad basim. Peridium membranaceum, cellulis 8-15 µm, e 3-6 stratis, 8-15 µm crassum, textura angulari compositum. Setae rectae vel parum curvae, hyalinae vel dilute flavae, crassitunicatae, 10-40 µm longae, septatae. Asci 8-spori, ovoidei vel clavati, 50-75 X 17-25 µm, superne late rotundati, brevistipitati, tenuitunicati, evanescentes. Paraphysis nullis. Ascosporae unicellulares, irregulariter biseriatae, primum hyalinae, deinde brunneae vel atrobrunneae, crassitunicatae, fusiformes, 18-24 X 9-12 µm, reticulatae, costis protrudentibus, e polo visae polygonales, utrinque umbonatae, foramine germinali praeditae. Phialidis hyalinis, status conidialis. Original description Cultural characteristics: Colonies on MLA grew more rapidly than on PDA, 1.1 cm versus 0.6 cm per day (21–22 ºC), consisting of slightly submerged mycelium and aerial hyphae, granulose due to production of ample number of ascomata. On MLA and PDA — producing a woolly mycelium, yellowish to pinky-brownish on both sides (FIG. 1). At 37 ºC, no growth was registered. Hyphae were white to pale yellow, 2.5–5.0 µm diam., septate, anastomosis occurred soon after ascospore germination (Fig 2). Colonies on Potato dextrose agar (PDA) spread with abundant, white to pale yellow aerial mycelium and low number of ascomata. Ascomata, perithecial or cleistotecial, scattered or aggregated in small groups, superficial, pyriform to globose, ostiolate (when mature), light to dark yellowish brown, translucent, appearing black due to mass of mature ascospores, 250–300 µm high, 200–280 µm diam. Neck absent to short conical or cylindrical 25-75 µm long, 20-70 µm wide at the base, sometimes surrounded with a crown of short, upright setae, 10-40 µm long. Peridium membranaceous, 3–6-layered, 8–10 µm thick, translucent, pale yellow to light brown, composed by cells of 8–15 µm diam. disposed in textura angularis.. Asci 8-spored, clavate, 50–75 X 17–25 µm, rounded at apex, without apical structures, thin-walled and evanescent when mature. Paraphyses absent. Ascospores irregularly arranged inside the asci, at first hyaline but becoming brown to dark brown, thick-walled, single-celled, fusiform to rarely triangular, 18–24 X 9–12 µm, reticulate to rarely smooth, with irregular transverse sections, and with a strongly umbonate germ pore at each end. Phialides hyaline, ampulliform produced directly on ascomata or on hyphae surrounding ascomata, and on irregularly branched conidiophores. Typus: Canada: Saskatchewan, on Fusarium avenaceum from wheat, Saskatoon, SK, Canada, 10 Sep. 2005, V. Vujanovic (holotypus: SMCD 2220-01; isotypus: IDAC301008-01). Etymology: mycoparasitica; referring to fungus parasitic on another fungus. Host range: Associated with Fusarium avenaceum and F. graminearum on wheat, and F. oxysporum on asparagus. Additional cultures examined: Sphaerodes quadrangularis CBS112763; MycoBank MB500012; GenBank accession number GQ354530. Date entered: 26/08/2009 09:47:44 Date of release: 28/10/2009 08:37:41 Entered by: Prof. Vladimir Vujanovic University of Saskatchewan, Canada Type specimen Description: MBSPEC 50045 Collection numbers: IDAC301008-01 Herbarium number: SMCD 2220-01 Collected by: September 10. 2005 Substrate: Fusarium avenaceum Location: Canada, Saskatchewan, Saskatoon