Pleosporales » Pleomassariaceae » Paramonodictys

Paramonodictys solitarius

Paramonodictys solitarius N.G. Liu, K.D. Hyde & J.K. Liu

Index Fungorum number: IF557093; Facesoffungi number: FoF 06710

Etymology: Name reflects the solitary conidia

Holotype: MFLU 19-2854

 

Saprobic on submerged wood in freshwater. Sexual morph: Undetermined. Asexual morph: Colonies superficial, scattered, black. Mycelium mostly superficial, composed of branched, brown, septate, rough hyphae. Stroma not observed. Conidiophores absent. Conidiogenous cells holoblastic, monoblastic. Conidia 30–55 × 25–50 μm (= 40 × 37 μm, n = 15), solitary, acrogenous, simple, dry, globose or subglobose, ellipsoidal, muriform, multiseptate, dark brown to black, easily breaking when in water, smooth, thin-walled. (Descriptions from Dong et al. 2020)

 

Culture characteristics: On PDA, colony circular, reaching 15 mm in 20 days at 25°C, grey from above, black from below, surface rough, with dense mycelium, dry, raised, edge entire.

 

Material examined: THAILAND, Nan Province, on submerged wood in a stream, 4 August 2017, S. Boonmee, DP10 (MFLU 17-1714), living culture MFLUCC 17-2353.

 

Notes: Our new collection MFLUCC 17-2353 has identical LSU sequence data with the ex-type strain of Paramonodictys solitarius, with two and one nucleotide differences in ITS and TEF sequence data, respectively. Phylogenetic analysis also supports our collection as P. solitarius. Our collection has smaller conidia (30–55 × 25–50 μm vs. 50–87 × 40–61 μm) than the holotype (Hyde et al. 2020) and lacks a stroma. This is a new habitat and geographical record for P. solitarius from freshwater in Thailand. (Notes from Dong et al. 2020)