Fungalpedia – Note 83 Pleopunctum

 

Pleopunctum N.G. Liu, K.D. Hyde & J.K. Liu

Citation when using this entry: Liu et al., in prep – Taxonomy and phylogeny of brown-spored hyphomycetes. Fungal Diversity, in review.

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

Based on phylogenetic analyses of combined LSU, SSU, ITS and tef1-α sequence data, Liu et al. (2019) introduced Pleopunctum with the type species P. ellipsoideum and P. pseudoellipsoideum in the family Phaeoseptaceae (Pleosporales, Dothideomycetes). Subsequently, seven other Pleopunctum species were described in China and Thailand (Phukhamsakda et al. 2020, Boonmee et al. 2021, Senwanna et al. 2021, Wanasinghe et al. 2022, Xu et al. 2023). Pleopunctum is a saprobic genus in terrestrial habitats. The sexual morph of Pleopunctum has not been reported. The asexual state is characterized by macronematous, mononematous, short conidiophores, monoblastic, integrated conidiogenous cells and oval to ellipsoidal, brown, muriform conidia often with a hyaline, globose to ellipsoidal basal cell (Liu et al. 2019, Phukhamsakda et al. 2020, Boonmee et al. 2021, Senwanna et al. 2021, Wanasinghe et al. 2022, Xu et al. 2023). Hyaline phragmosporous or dictyosporous conidia has been reported in this genus (Phukhamsakda et al. 2020, Senwanna et al. 2021, Wanasinghe et al. 2022).

Type species: Pleopunctum ellipsoideum N.G. Liu, K.D. Hyde & J.K. Liu

Other accepted species:

Pleopunctum bauhiniae (Phukhams., D.J. Bhat & K.D. Hyde) Koukol & G. Delgado

Pleopunctum heveae Senwanna, Cheew. & K.D. Hyde

Pleopunctum megalosporum R.J. Xu, Q. Zhao & Boonmee

Pleopunctum menglaense Wanas.

Pleopunctum multicellularum R.J. Xu, Q. Zhao & Boonmee

Pleopunctum pseudoellipsoideum N.G. Liu, K.D. Hyde & J.K. Liu

Pleopunctum rotundatum R.J. Xu, Q. Zhao & Boonmee

Pleopunctum thailandicum J.Y. Zhang, Y.Z. Lu & K.D. Hyde

 

https://fungalpedia.org/wp-content/uploads/2023/09/83.jpg

 

Figure 1 – Pleopunctum ellipsoideum a, b Colonies on natural substrate. c Conidial mass. d-g Conidia with short conidiophores. h-l Conidia with or without hyaline basal cell. m Germinated conidium. Scale bars: a = 200 μm, b = 100 μm, c = 50 μm, d-l = 15 μm.

 

Referencesauto

Boonmee S, Wanasinghe DN, Calabon MS, Huanraluek N et al. 2021 – Fungal diversity notes 1387–1511: taxonomic and phylogenetic contributions on genera and species of fungal taxa. Fungal Diversity 111, 1–335.

Liu NG, Hyde KD, Bhat DJ, Jumpathong J et al. 2019 – Morphological and phylogenetic studies of Pleopunctum gen. nov. (Phaeoseptaceae, Pleosporales) from China. Mycosphere 10, 757–775.

Phukhamsakda C, McKenzie EHC, Phillips AJL, Jones EBG et al. 2020 – Microfungi associated with Clematis (Ranunculaceae) with an integrated approach to delimiting species boundaries. Fungal Diversity 102, 1–203.

Senwanna C, Mapook A, Samarakoon MC, Karunarathna A et al. 2021 – Ascomycetes on Para rubber (Hevea brasiliensis). Mycosphere 12, 1334–1512.

Wanasinghe DN, Ren GC, Xu JC, Cheewangkoon R et al. 2022 – Insight into the taxonomic resolution of the pleosporalean species associated with dead woody litter in natural forests from Yunnan, China. Journal of Fungi 8, 375.

Xu RJ, Zhu YA, Liu NG, Boonmee S et al. 2023 – Taxonomy and phylogeny of hyphomycetous muriform conidial taxa from the Tibetan Plateau, China. Journal of Fungi 9, 560.

 

Entry by

Liu NG, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand.

 

(Edited by Kevin D. Hyde & Eric H.C. McKenzie)

Published online 15 September 2023

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