Glomerellales » Plectosphaerellaceae » Acremoniisimulans

Acremoniisimulans thailandensis

Acremoniisimulans thailandensis Tibpromma & K.D. Hyde, in Tibpromma et al., Fungal Diversity: 10.1007/s13225-018-0408-6, [89] (2018)

Index Fungorum number: IF555330         Facesoffungi number: FoF04536

 

Sexual morph: Undetermined. Asexual morph: Hyphomycetous. Colonies on natural substrate consisting of erect conidiophores. Mycelium immersed in the substrate, composed of septate, branched, brown hyphae. Conidiophores 106–112 × 3– 4.5 μm (x̄ = 109 × 4 μm, n = 10), macronematous, mononematous, scattered, brown, pale brown to subhyaline at apex, smooth, thick-walled, 3–4-septate, unbranched, straight or slightly flflexuous. Conidiogenous cells 28.5– 44 × 3–4.5 μm (x̄ = 37 × 3.5 μm, n = 20), monophialidic, subhyaline, cylindrical. Conidia 5.5–8 × 3–4 μm (x̄  = 6.5 × 3.5 μm, n = 30), solitary, pale brown to brown, oval, aseptate, rounded at each end, smooth-walled, slimy, without mucilaginous sheath.

Culture characteristics: Conidia germinating on PDA within 12 h. Colonies on PDA reaching 9 cm in 2 weeks at room temperature, circular, undulate with white to cream, raised on surface media, velvety.

Habitat: Known to saprobic on dead leaves of Pandanus sp.

 

Known distribution: Thailand.

 

Material examined: Thailand, Prachuap Khiri Khan Province, Bang Saphan District, Sai Khu Waterfall, on Pandanus sp., 30 July 2015, S. Tibpromma SF15-028 (MFLU 18-0012, holotype); ex-type living culture, MFLUCC 16-0372 = KUMCC 16-0159.

GenBank Accession No: LSU: MH260315; ITS: MH275081; SSU: MH260355.

Notes: Acremoniisimulans thailandensis is described as a unique new species based on our phylogenetic analysis where it formed a well-separated clade from other genera with high support. It has pale brown to brown, oval, aseptate conidia.

Figure X. Acremoniisimulans thailandensis (MFLU 18-0012, holotype). a Colonies on dead leaf of Pandanus sp. b Conidiophores, conidiogenous cells and conidia. c–f Conidiogenous cells and conidia. g–i Conidia. j Germinating conidium. Scale bars: a = 100 μm, b = 10 μm, e–g = 5 μm, h–j = 2 μm.

Reference: Tibpromma S, Hyde KD, McKenzie EHC, Bhat DJ, Phillips AJL, Wanasinghe DN, Samarakoon MC, Jayawardena RS, Dissanayake AJ, Tennakoon DS, Doilom M, Phookamsak R, Tang AMC, Xu JC, Mortimer PE, Promputtha I, Maharachchikumbura SSN, Khan S, Karunarathna SC (2018) Fungal diversity notes 840–928: micro-fungi associated with Pandanaceae. Fungal Diversity. 93:1-160.

 

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