Amphisphaeriales » Beltraniaceae » Beltraniella

Beltraniella thailandica

Beltraniella thailandica Tibpromma & K.D. Hyde [as 'thailandicus'], in Tibpromma et al., Fungal Diversity: 10.1007/s13225-018-0408-6, [136] (2018)

Index Fungorum number: IF554514         Facesoffungi number: FoF04522

 

Sexual morph: Undetermined. Asexual morph: Hyphomycetous. Setae 100–118 × 3–4 µm, erect, cylindrical, dark brown, 1–2-septate, thick-walled, straight to flexuous, conical at the tip, unbranched. Conidiophores subcylindrical, pale brown, smooth, arising base of setae, straight to flexuous, aseptate. Conidiogenous cells 4.5–7.5 × 2–3 µm (x̅ = 6 × 2.6 µm, n = 10), terminal or lateral, discrete, subcylindrical to somewhat clavate, pale brown, smooth, polyblastic, sympodial, with 1–4 denticulate conidiogenous loci. Conidia 10–25 × 3–6 µm (x̅ = 16 × 4 µm, n = 30), solitary, hyaline to subhyaline, kite-like, aseptate, smooth, without a hyaline transverse band, mucilaginous sheath or appendage.

 

Culture characteristics: Conidia germinating on MEA within 24 h. Colonies on MEA, circular, entire edge with curled, raised on surface media, rough, grey with black at the curled, hard.

 

Habitat: Saprobic on dead leaves of Pandanus sp.

 

Known distribution: Thailand.

 

Material examined: THAILAND, Chonburi Province, Bang Lamung District, on Pandanus sp., 18 July 2016, W. Jaidee PTY03 (MFLU 16-1878, holotype; HKAS 96272, isotype); ex-type living culture, MFLUCC 16–0377 = KUMCC 17–0300.

 

GenBank numbers: LSU: MH260282, ITS: MH275050, SSU: MH260330.

 

Notes: In the phylogenetic analyses, Beltraniella thailandicus is distinct from other species of Beltraniella (0.97 in BYPP). It shares similar conidial morphology to B. portoricensis but differs by absence of a hyaline transverse band in the conidia (Rajeshkumar et al. 2016). In a BLASTn search on NCBI GenBank, the closest matches of ITS sequence of MFLUCC 16-0377 is Beltraniella sp. with 98% identity to the strain 111.3.3 (KP133179).

 

Figure X. Beltraniella thailandicus (MFLU 16–1878, holotype). a Colonies on dead leaves of Pandanus sp. b, c Setae, Conidiogenous cells with conidiophores and conidia. d–f Conidia. g Germinating conidium. h, i Colony on MEA from above and below. Scale bars: a = 100 µm, b, c = 10 µm, d–g = 5 µm.

 

Reference: Tibpromma S, Hyde KD, McKenzie EHC, et al. (2018) Fungal diversity notes 840–928: micro-fungi associated with Pandanaceae. Fungal Diversity 93: 1–160.

 

 

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