Dendrostoma quercus

Ciri dan struktur

Dendrostoma quercus is recognised by the existence of dimorphic conidia, which is unique in the genus. Sexual morph: Pseudostromata erumpent, consisting of an inconspicuous ectostromatic disc, semi-immersed to superficial, causing a pustulate bark surface, 1000–1500 µm diam. Ectostromatic disc flat or concave, pale brown to brown, sometimes concealed by ostioles, surrounded by bark flaps, 400–800 µm diam.; central column yellowish to brownish. Stromatic zones lacking. Perithecia conspicuous, umber to fuscous black, 350–500 µm diam. Ostioles 5–8 per disc, flat in the disc or sometimes slightly projecting, cylindrical, covered by an orange, umber to fuscous black crust, 60–80 µm diam. Paraphyses slightly deliquescent. Asci fusoid to slightly fusiform, 8-spored, ascospores regularly disposed, with an apical ring, 55–65 × 8–11 µm. Ascospores hyaline, fusoid to cylindrical, smooth, often containing one guttule per cell to multiguttulate, symmetrical to asymmetrical, straight curved, bicellular, (13.4–)13.8–15.6(–16.6) × (5.1–)5.3–5.8(–5.9) μm, l/w = (2.4–)2.5–2.8(–2.9) (n = 50). Asexual morph: Conidiomata pycnidial, conical, occurring separately, pale yellow, semi-immersed in bark, 700–1000 μm high, 700–950 μm diam.; wall of several layers of pale yellow textura angularis; central column beneath the disc conical, yellow. Conidiophores reduced to conidiogenous cells. Conidiogenous cells lining the inner walls of the cavity, hyaline, smooth, subcylindrical to ampulliform, 4.5–9 × 2–4 μm. Conidia hyaline, aseptate, smooth, multiguttulate, thin-walled, dimorphic, type one (> 99%) ellipsoid to fusoid, straight to curved, (11–)13.3–16.1(–16.9) × (3.4–)3.5–4.2(–4.5) μm, l/w = (2.6–)3.3–4.4(–4.9) (n = 50); type two (< 1%) fusoid, apex acutely rounded, 13–16 × 4–6 μm.

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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

On PDA, cultures are initially white, becoming dark grey after 2 weeks. The colonies are flat with irregular edge; texture uniform, producing concentric circles with sparse conidiomata irregularly distributed within 1 month at 25 °C in the dark.

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

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

Dendrostoma quercus is recognised by the existence of dimorphic conidia, which is unique in the genus. Sexual morph: Pseudostromata erumpent, consisting of an inconspicuous ectostromatic disc, semi-immersed to superficial, causing a pustulate bark surface, 1000–1500 µm diam. Ectostromatic disc flat or concave, pale brown to brown, sometimes concealed by ostioles, surrounded by bark flaps, 400–800 µm diam.; central column yellowish to brownish. Stromatic zones lacking. Perithecia conspicuous, umber to fuscous black, 350–500 µm diam. Ostioles 5–8 per disc, flat in the disc or sometimes slightly projecting, cylindrical, covered by an orange, umber to fuscous black crust, 60–80 µm diam. Paraphyses slightly deliquescent.

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

Morphology of Dendrostoma quercus from Quercus sp. (BJFC -S1547). A–C Habit of psedostromata on branches D Transverse section of pseudostroma E, H Habit of conidiomata on branches F Transverse section of conidioma G Longitudinal section through conidioma I Conidiogenous cells producing dimorphic conidia J Secondary conidia K Asci and ascospores L Ascospores M Primary conidia. Scale bars: 1 mm (A, H); 0.5 mm (B–G); 10 μm (I, K–M); 5 μm (J).

Jenis

Pelat ilmiah

Kredit

Ning Jiang, Xin-Lei Fan, Pedro W. Crous, Cheng-Ming Tian

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] Species of Dendrostoma (Erythrogloeaceae, Diaporthales) associated with chestnut and oak canker diseases in China — Dendrostoma quercusBagian sumber: PMC6416227_section_68
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY 4.0 · Jiang N, Fan XL, Crous PW, Tian CM.
2. [2] Catalogue of Life Base2026-09-11 — Dendrostoma quercusBagian sumber: ColDP NameUsage.tsv ID 6CL9V; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12
3. [3] Dokumentasi visual — Dendrostoma quercusBagian sumber: Individual media record; identification follows the source, not independent determination
   Tanggal penghimpunan sumber: 2026-10-12
   Media sumber: CC BY 4.0 · Ning Jiang, Xin-Lei Fan, Pedro W. Crous, Cheng-Ming Tian