Amphisphaeriales » Sporocadaceae » Bartalinia

Bartalinia adonidiae

Bartalinia adonidiae

Konta & K.D. Hyde (2023)

 

Classification:Ascomycota-Pezizomycotina-Sordariomycetes-Xylariomycetidae- Amphisphaeriales-Sporocadaceae-Bartalinia

 

Host species: Adonidia merrillii (Konta et al. 2023)

 

Holotype: MFLU 22-0086 (Konta et al. 2023)

 

Known distribution: Kanchanaburi, Thailand

 

IF Number: IF559714      Mycobank Number: 559714      FOF Number:

 

Description

Saprobic on the dead part of the living leaves of Adonidia merrilli. Sexual morph: Undetermined. Asexual morph: Coelomycetous. Conidiomata 30–60 × 50–100 µm (x̅ = 55 × 70 µm, n = 10), subglobose to lenticular, visible as dark grey to black areas, immersed, slightly raised, solitary to gregarious, uniloculate. Conidiomata walls 10–15 µm (x̅ = 12 µm, n = 10) wide, slightly thick-walled, of equal thickness, comprising several cell layers of light brown to brown, pseudoparenchymatous cells of textura angularis, paler towards the inner layers. Conidiophores arising from the inner cavity reduced to conidiogenous cells. Conidiogenous cells 3–7 × 1.8–3.8 µm (x̅ = 5 × 3 µm), enteroblastic, annellidic, integrated, hyaline, ampulliform to subcylindrical, or obclavate, aseptate, smooth-walled. Conidia 14–21.8 × 3.6–6.2 µm (x̅ = 17.2 × 4.8 µm, n = 100), cylindrical to inequilateral, straight to slightly curved, 2–4-septate, constricted at the septa, with the longest cell at the second from the base, bearing appendages; basal cell 2–3.2 µm (x̅ = 2.5 µm) long, obconic, truncate at base, hyaline, thin and smooth-walled; second cell from the base 3.3–4.6 µm (x̅ = 4.1 µm) long, pale yellowish; third cell 2.5–3.3 µm (x̅ = 2.7 µm) long, pale yellowish; fourth cell 2.4–3.2 µm (x̅ = 2.8 µm) long, pale yellowish; apical cell 2.4–3.2 µm (x̅ = 2.6 µm) long; apical appendages conical, hyaline and smooth-walled, forming three-branched tubular, flexuous, 6–18 µm long (x̅ = 10 µm); basal appendages 1.3–3 µm (x̅ = 1.9 µm) long, single, absent at immature state, tubular, unbranched, centric. Appressoria irregular, hyaline, rough-walled, 5–16.8 × 7–20 µm (x̅ = 11 × 11.2 µm, n = 50).

 

Culture conditions: Colonies on MEA. Colonies from above; white fluffy at the beginning, dense, circular, turning yellow-brown from the middle, becoming red-brown to green-brown, and creamy brown towards edge, entire margin at maturity. Colonies from below; olivaceous-green, white at the entire edge with circulars layers.

 

 

Bartalinia adonidiae (MFLU 22-0086, holotype). (A) Adonidia merrillii tree. (B, C) Substrate. (D, E) Conidiomata on host substrate. (F) Vertical section of conidioma. (G) Conidioma wall. (H–O, X, Y) Conidiogenous cells with conidia. (P–W) Conidia. (Z) Germinated conidium with appressoria (pointed with red arrows). (AA–AD) Appressoria. (AE) Colony on MEA. Scale bars D = 500 μm, E = 200 μm, F, G, Z = 20 μm, H–Y, AA–AD = 10 μm.

 

Reference

Konta, S; Tibpromma, S; Karunarathna, SC; Samarakoon, MC; Steven, LS; Mapook, A; Boonmee, S; Senwanna, C; Balasuriya, A; Eungwanichayapant, PD; Hyde, KD. (2023) Morphology and multigene phylogeny reveal ten novel taxa in Ascomycota from terrestrial palm substrates (Arecaceae) in Thailand. Mycosphere. 14(1):107–152

 

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