Fungalpedia – Note 2490, Neohelicomyces

 

Neohelicomyces Z.L. Luo, Bhat & K.D. Hyde

Citation when using this data: Dong W et al. 2020 – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1

Classification: Tubeufiaceae, Tubeufiales, Incertae sedis, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

Neohelicomyces was introduced by Luo et al. (2017) for three freshwater species. Lu et al. (2018b) introduced the fourth freshwater species N. hyalosporus Y.Z. Lu et al. which differs from the others in having longer conidiophores and hyaline conidia. Neohelicomyces is characterized by white colonies, macronematous, branched conidiophores, mono- to poly-blastic, integrated conidiogenous cells with lateral minute denticles and helicoid conidia (Luo et al. 2017). Two strains Tubeufia amazonensis Samuels et al. (ATCC 42524) and T. helicomyces Höhn. (MUCL 15702) cluster in Neohelicomyces (Lu et al. 2018b), but are not synonymized because they lack morphology (Tsui et al. 2006b).

Type species: Neohelicomyces aquaticus Z.L. Luo, Bhat & K.D. Hyde

Other accepted species: Species Fungorum – search Neohelicomyces.

 

image

 

Figure 1 – Neohelicomyces dehongensis (MFLU 18-1168, holotype). a, b Colonies on submerged wood. c, d Conidiophores with attached conidia. e Apex of conidiophore without conidiogenous cells. f, g Conidiogenous cells. h–j Conidia. k, l Colony on PDA (left-front, right-reverse). Scale bars: c = 40 μm, d–f, h–j = 20 μm, g = 5 μm.

 

References

Lu YZ, Liu JK, Hyde KD, Jeewon R, Kang JC, Fan C, Boonmee S, Bhat DJ, Luo ZL, Lin CG, Eungwanichayapant PD 2018b – A taxonomic reassessment of Tubeufiales based on multi-locus phylogeny and morphology. Fungal Divers 92:131–344.

Luo ZL, Bhat DJ, Jeewon R, Boonmee S, Bao DF, Zhao YC, Chai HM, Su HY, Su XJ, Hyde KD 2017 – Molecular phylogeny and morphological characterization of asexual fungi (Tubeufiaceae) from freshwater habitats in Yunnan, China. Cryptogam Mycol 38:27–53.

Tsui CKM, Sivichai S, Berbee ML 2006b – Molecular systematics of Helicoma, Helicomyces and Helicosporium and their teleomorphs inferred from rDNA sequences. Mycologia 98:94–104.

 

Entry by

Wei Dong, Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China, Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand, Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, China

 

Published online 22 May 2026

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