Ascodesmis nigricans

Ciri dan struktur

The mycelium of A. nigricans consisted of hyaline cylindrical hyphae that do not produce conidia and spermatia. Apothecium, the cup-shaped fruit body of A. nigricans, could be alone or gregarious and its small size make this species difficult to be collected frequently from the natural environment. However, the structure of apothecium would be observed clearly when it grows on artificial media. It consists of exposed hymenium which contains several unprotected asci surrounding with abundant unbranched paraphyses. Apothecium also contained hypothecium which formed by thin-walled hyphae and without excipulum. The tiny apothecium is hemispherical and flattens as aging. The clavate asci which contain ascospores are produced by the ascogenous hyphae with the broad base or a short broad stalk. Only a cluster of asci would be formed in a mature apothecium, and as the asci successfully mature, the asci shrink to a short stipe and give rise to a large attached operculum. Randomly arranged ascospores that set in the upper area of asci would be discharged through operculum at the asci tip. The ultrastructure of ascospores of A. nigricans was investigated to have a deeper understanding of the formation of wall layers and ornamentation of ascospores. The invagination of the plasma membrane of ascus generates the two unit membranes that consist of the ascus vesicle. Then partially invaginated ascus vesicle form the delimiting membranes for ascospore which also consist of two unit membranes with close space between them. Subsequently, a primary and secondary wall of ascospore would be formed.

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Rujukan: [1]

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Habitat dan peran ekologis

As a coprophilous fungus, A. nigricans is commonly isolated from the dung of both omnivorous and herbivore animals, such as dogs, goat, sheep, rat, donkey, pig, fox and ostrich. It also was found from the soil contaminated by dung. Basically, A. nigricans is a cosmopolitan species. Its distributions cover France, India, Italy, Portugal, Canada, U.S.A., England, Denmark, Sweden. In addition to this, it was found in Asia, Africa, Australia occasionally.

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Rujukan: [1]

Habitat atau konteks temuan

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Substrat

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Peran atau konteks

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Reproduksi

The mycelium of A. nigricans consisted of hyaline cylindrical hyphae that do not produce conidia and spermatia. Apothecium, the cup-shaped fruit body of A. nigricans, could be alone or gregarious and its small size make this species difficult to be collected frequently from the natural environment. However, the structure of apothecium would be observed clearly when it grows on artificial media. It consists of exposed hymenium which contains several unprotected asci surrounding with abundant unbranched paraphyses. Apothecium also contained hypothecium which formed by thin-walled hyphae and without excipulum. The tiny apothecium is hemispherical and flattens as aging. The clavate asci which contain ascospores are produced by the ascogenous hyphae with the broad base or a short broad stalk.

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.
• Original geographic, specimen and life-cycle scope retained; source import awaits individual editorial review.
• 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

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Sumber profil

1. [1] Ascodesmis nigricans — Wikipedia (en)Bagian sumber: Frozen revision 1354674349
   Tanggal penghimpunan sumber: 2026-10-12
   Teks sumber: CC BY-SA4.0 · Wikipedia contributors
2. [2] Catalogue of Life Base2026-09-11 — Ascodesmis nigricansBagian sumber: ColDP NameUsage.tsv ID H83B; accepted species; source 2073
   Tanggal penghimpunan sumber: 2026-10-12