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 (x̄ = 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)
Fig. 1 Paramonodictys solitarius (MFLU 17-1714). a Colonies on natural substrate. b Appearance of conidial wall. c–f Conidia. g, h Colony on PDA (left-front, right-reverse). Scale bars: b–f = 20 μm.
References
Hyde KD, Dong Y, Phookamsak R, Jeewon R, Bhat DJ, Jones EBG, Liu N-G, Abeywickrama PD, Mapook A, Wei D, Perera RH, Manawasinghe IS, Pem D, Bundhun D, Karunarathna A, Ekanayaka AH, Bao D-F, Li J, Samarakoon MC, Chaiwan N, Lin C-G, Phutthacharoen K, Zhang S-N, Senanayake IC, Goonasekara ID, Thambugala KM, Phukhamsakda C, Tennakoon DS, Jiang H-B, Yang J, Zeng M, Huanraluek N, Liu J-K, Wijesinghe SN, Tian Q, Tibpromma S, Brahmanage RS, Boonmee S, Huang S-K, Thiyagaraja V, Lu Y-Z, Jayawardena RS, Dong W, Yang E-F, Singh SK, Singh SM, Rana S, Lad SS, Anand G, Devadatha B, Niranjan M, Sarma VV, Liimatainen K, Aguirre-Hudson B, Niskanen T, Overall A, Alvarenga RLM, Gibertoni TB, Pfliegler WP, Horváth E, Imre A, Alves AL, da Silva Santos AC, Tiago PV, Bulgakov TS, Wanasinghe DN, Bahkali AH, Doilom M, Elgorban AM, Maharachchikumbura SSN, Rajeshkumar KC, Haelewaters D, Mortimer PE, Zhao Q, Lumyong S, Xu J, Sheng J (2020) Fungal diversity notes 1151–1276: taxonomic and phylogenetic contributions on genera and species of fungal taxa. Fungal Diversity 100:5–277
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