Sporothrix fraxini

Ciri dan struktur

Sexual and asexual structures produced on sterilized ash twigs and on surface of malt agar in Petri dishes. Ascomata abundant, superficially or partly embedded in the agar, single or in groups; ascomatal base black, globose, (89–)110–161(–216) μm diam., with brown hyphal hairs, 14 to 65 μm long and 1.1 to 2.1 μm wide at the base; ascomatal necks black, straight or curved, (222–)332–461(–526) μm long, diameter (10.1–)11.3–16(–20.4) μm at the apex and (26.2–)29.1–41.4(–53) μm at the base. Ostiolar hyphae present, pale brown, septate, straight or rather tortuous, tapering towards the apex or sporadically dichotomous branching at the tip, (8–)10–20(–24) in number (21.4–)31.1–52.1(–73.6) μm long, (0.4–)0.7–1.1(–1.4) μm at the apex and (1.4–)1.8–2.4–(3.1) μm at the base. Asci evanescent. Ascospores one-celled, allantoid in side view (2.7–)2.9–3.5(–4.4) × (0.9–)1–1.4(–1.8) μm, elliptical in front view (2.2–)2.9–3.8(–4.7) × (0.8–)1.2–1.6(–1.8) μm, sometimes with residual sheath up to 1 μm thick, accumulated in white-color mass at the tip of the neck. Conidiophores hyaline, micronematous, simple or branched, straight, simple or branched, bearing several conidiogenous cells, either borne on vegetative hyphae or on upright hyphae. Conidiogenous cells blastic, cylindrical terminal or intercalary, straight or curved, tapering towards the apex, swollen apical part forming conidia by sympodial proliferation on hardly visible denticles, (13.6–)14.6–47.7(–99.6) μm long, (0.9–)1.2–1.6(–1.9) μm wide at the base. Apical part (0.8–)1.7–5.1(–10.6) μm long and (0.8–)1.1–2(–3) μm wide. Conidia hyaline, unicellular, smooth, obovoid to ellipsoidal, ends slightly rounded or truncate, (2.6–)3.4–5(–6.8) × (0.8–)1.1–1.6(–2) μm, formed directly on denticles.

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Rujukan: [1]

Pengukuran mengikuti objek, spesimen atau kultur, dan metode yang disebutkan sumber. Baca uraian asli untuk konteks lengkap.

Habitat dan peran ekologis

This species is phylogenetically distinct from the other Sporothrix species based on the ITS, βT, CAL and TEF1-α sequences. Sporothrix fraxini is closely related to S. variecibatus. However, S. variecibatus does not produce a sexual morph, and has narrower conidia (2–3 μm) (Roets et al. 2008) compared to S. fraxini (0.8–2 μm). In addition, the conidia of S. variecibatus are clavate while S. fraxini has obovoid to ellipsoidal conidia. Sporothrix fraxini was represented by three isolates collected from the galleries of Hylesinus varius on Fraxinus excelsior. It corresponds to Sporothrix sp. 8 in the previous study of Jankowiak et al. (2019a).

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Rujukan: [1]

Habitat atau konteks temuan

Informasi belum tersedia pada sumber rilis ini.

Substrat

Informasi belum tersedia pada sumber rilis ini.

Peran atau konteks

Belum dikategorikan pada rilis ini.

Reproduksi

Sexual and asexual structures produced on sterilized ash twigs and on surface of malt agar in Petri dishes. Ascomata abundant, superficially or partly embedded in the agar, single or in groups; ascomatal base black, globose, (89–)110–161(–216) μm diam., with brown hyphal hairs, 14 to 65 μm long and 1.1 to 2.1 μm wide at the base; ascomatal necks black, straight or curved, (222–)332–461(–526) μm long, diameter (10.1–)11.3–16(–20.4) μm at the apex and (26.2–)29.1–41.4(–53) μm at the base. Ostiolar hyphae present, pale brown, septate, straight or rather tortuous, tapering towards the apex or sporadically dichotomous branching at the tip, (8–)10–20(–24) in number (21.4–)31.1–52.1(–73.6) μm long, (0.4–)0.7–1.1(–1.4) μm at the apex and (1.4–)1.8–2.4–(3.1) μm at the base.

Sebagian uraian ditampilkan dalam bahasa sumber; terjemahannya belum tersedia atau belum lolos pemeriksaan.

Rujukan: [1]

Catatan identitas dan cakupan

• Nama diterima mengikuti Catalogue of Life Base2026-09-11; uraian mempertahankan konsep dan nama sumber aslinya.
• Preserve original treatment localities, hosts and substrate scope. Materials examined describe documented specimens, not the full global range.
• Impor dan terjemahan otomatis belum diperiksa editorial per profil. Struktur reproduktif yang disebutkan tidak membuktikan seluruh siklus hidup diketahui.
• Pengukuran pada uraian mengikuti spesimen, kultur, dan metode sumber; angka tidak diperluas ke semua populasi.

Melihat dengan konteks

Sporothrix fraxini sp. nov. (CBS 147936) a ascoma b ascomatal base c ostiolar hyphae d ascospores e conidiogenous cell with an inflated cluster of denticles at the apex f conidia g fourteen-day-old culture on MEA. Scale bars: 100 μm (a), 50 μm (b), 25 μm (c), 10 μm (d–f).

Jenis

Pelat ilmiah

Kredit

Agnieszka Ostafińska, Robert Jankowiak, Piotr Bilański, Halvor Solheim, Michael J. Wingfield

Lisensi

CC BY 4.0

Sumber media

Buka entri sumber

Gambar menunjukkan objek menurut identifikasi sumber, bukan verifikasi independen spesimen oleh Fungi. Tidak ada skala baru yang ditambahkan.

Sumber profil

1. [1] Six new species of Sporothrix from hardwood trees in Poland — Sporothrix fraxiniBagian sumber: PMC8357686_section_18
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY 4.0 · Ostafińska A, Jankowiak R, Bilański P, Solheim H, Wingfield MJ.
2. [2] Catalogue of Life Base2026-09-11 — Sporothrix fraxiniBagian sumber: ColDP NameUsage.tsv ID B2MD9; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Sporothrix fraxiniBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY 4.0 · Agnieszka Ostafińska, Robert Jankowiak, Piotr Bilański, Halvor Solheim, Michael J. Wingfield