Apiospora descalsii

Ciri dan struktur

Sexual morph: Stromata forming black fusiform spots that merge with each other with age, forming an erumpent black mass visible at the naked eye, 2–10 × 0.2–0.5 mm in size, with the long axis broken at the top revealing the ostioles of pseudothecia. Ascomata pseudothecia, subglobose with a flattened base, arranged in rows, brown to dark brown, 150–220 μm high × 150–250 μm wide (n = 20). Peridium with several layers of cells arranged in textura angularis, with a conspicuous ostiole 50–80 μm in diameter, periphysate. Hamathecium paraphyses hyphae-like, septate, hyaline. Asci cylindrical, clavate, with a short or indistinct pedicel, with rounded apices, measuring (73–)82–95(–111) × (16–)17–20(–23) μm (n = 30). Ascospores uniseriate to biseriate, hyaline, smooth-walled, apiosporic, composed of a large curved upper cell and smaller lower cell, fusiform to slightly curved in shape with narrowly rounded ends, guttulated, sometimes with a thick gelatinous sheath, (17–)18–22(–24) × (6–)7–9(–10) μm, and a basal cell 3–5 μm (n = 45). Asexual morph: Mycelium hyaline, septate, branched, hyphae 1.5–4.5 μm in diameter Conidiophores reduced to the conidiogenous cells. Conidiogenous cells solitary on hyphae, ampuliform, hyaline to brown, 5 × 4 μm. Conidia brown, smooth, guttulate, globose to ellipsoid (5–)7(–8) µm long (n = 20) in face view, lenticular with a paler equatorial slit and 6-7 μm long in side view (n = 10). Sterile cells elongated, sometimes mixed among conidia. Culture characteristics: ascospores germinating on MEA 2% within 24–48 h. Colonies flat, spreading, with sparse aerial mycelium, pale siena.

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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

Arthrinium descalsii is closely related with A. phragmitis and A. balearicum. It was found in the Mediterranean grass Ampelodesmos mauritanicus, although additional samples are needed before concluding if it could be exclusively associated with this endemic host. Ascospore size is often smaller than that of A. balearicum, (23–)26–30(–32) × (7–)9–10(–12) µm, but it matches that reported in the protologue of A. phragmitis, (20–)22–24(–25) × (7–)8–9(–10) µm. However, the conidiophores of A. descalsii are reduced to conidiogenous cells, while those of A. phragmitis measure about 10–45 × 1.5–2 µm, and conidia are slightly smaller in face view, measuring (5–)7(–8) µm long in A. descalsii and up to 8–10(–11) µm in A. phragmitis. Spain: Balearic Islands: Mallorca, es Capdella, on dead stems of Ampelodesmos mauritanicus, 31 Jan. 2018, A. Pintos (MA-Fungi 91724 holotype, AP31118A isotype, CBS 145130 ex-type culture).

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Rujukan: [1]

Habitat atau konteks temuan

kultur yang didokumentasikan

Substrat

Informasi belum tersedia pada sumber rilis ini.

Peran atau konteks

Belum dikategorikan pada rilis ini.

Reproduksi

Sexual morph: Stromata forming black fusiform spots that merge with each other with age, forming an erumpent black mass visible at the naked eye, 2–10 × 0.2–0.5 mm in size, with the long axis broken at the top revealing the ostioles of pseudothecia. Ascomata pseudothecia, subglobose with a flattened base, arranged in rows, brown to dark brown, 150–220 μm high × 150–250 μm wide (n = 20). Peridium with several layers of cells arranged in textura angularis, with a conspicuous ostiole 50–80 μm in diameter, periphysate. Hamathecium paraphyses hyphae-like, septate, hyaline. Asci cylindrical, clavate, with a short or indistinct pedicel, with rounded apices, measuring (73–)82–95(–111) × (16–)17–20(–23) μm (n = 30).

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

A. descalsii A stromata on host B–D asci with ascospores E paraphyses F, G ascospores I, J ascospores with sheath K colony on MEA 2%; coniogenous cell giving rise to conidia; conidiogenous cells giving rise to conidia and conidia cluster G conidia. Scale bars: 200 µm (A); 10 µm (B–E); 5 µm (F–J); 5 µm (L–N).

Jenis

Pelat ilmiah

Kredit

Ángel Pintos, Pablo Alvarado, Juan Planas, Rene Jarling

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 Arthrinium from Europe and notes about A. caricicola and other species found in Carex spp. hosts — Arthrinium descalsiiBagian sumber: PMC6424953_section_21
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY 4.0 · Pintos Á, Alvarado P, Planas J, Jarling R.
2. [2] Catalogue of Life Base2026-09-11 — Apiospora descalsiiBagian sumber: ColDP NameUsage.tsv ID 9YNC3; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Arthrinium descalsiiBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY 4.0 · Ángel Pintos, Pablo Alvarado, Juan Planas, Rene Jarling