Fungalpedia – Note 643, Chaetocapnodium 

 

Chaetocapnodium Hongsanan & K.D. Hyde

Citation when using this data: D. S. Marasinghe et al. 2023 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Capnodiaceae, Capnodiales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

Epiphytic and saprobic on living leaves. Superficial mycelium composed of septate, brown, hyphae constricted and dark at the septum. Sexual morph Ascomata superficial, solitary to gregarious, globose to subglobose, dark brown to black, ostiolate, slightly attached to the basal mycelium, with few short, brown, aseptate setae. Peridium 2-layered, composing cells of textura angularis, inner layer hyaline, outer layer brown, thickened at the base. Hamathecium lacking psuedoparaphyses. Asci 8-spored, 2–3-seriate, hyaline, bitunicate, fissitunicate, cylindrical to clavate, short pedicellate or apedicellate, ocular chamber not observed. Ascospores oblong to ellipsoid, 3-septate, constricted and dark at the septum, hyaline when immature and brown at maturity, smooth-walled (Liu et al. 2015). Asexual morph: Pycnidia superficial or immersed, globose to pyriform, pale to dark brown, mostly intercalary, lateral or terminal on erect hyphal branches, meristogenous in development, pseudoparenchymatous, thin-walled, 1–2 cell layers of textura angularis. Setae septate or aseptate, pale to dark brown, mostly around ostiole. Ostiole lacking or not well-developed. Conidia hyaline, aseptate, globose to subglobose, with small guttules, smooth and thin-walled. (Abdollahzadeh et al. 2020; Hongsanan et al. 2020b).

Notes: Chaetocapnodium was established by Liu et al. (2015) with the type species of C. siamense. Chaetocapnodium is morphologically similar to Capnodium by subglobose to globose, ostiolate, ascomata developing from thalli and bitunicate asci with 3-septate ascospores. However, this genus differs from Capnodium by having ascomatal setae (Liu et al. 2015). Abdollahzadeh et al. (2020) described five novel species (C. indonesiacum, C. insulare, C. summerellii, C. tanzanicum and C. thailandense) and two new combinations (C. placitae and C. philippinense). Navarro-de-la-Fuente et al. (2022) established Chaetocapnodium zapotae from a fruit of Manilkara zapota in Mexico and was the first report of Chaetocapnodium species from sapodilla. Chaetocapnodium microglobulosum was established as a new combination by Khodaparast et al. (2020).

Type species: Chaetocapnodium siamense Hongsanan & K.D. Hyde, Fungal Diversity, [69] (2015)

Other accepted species: Species Fungorum – search Chaetocapnodium.

 

References

Abdollahzadeh J, Groenewald JZ, Coetzee M et al 2020 – Evolution of lifestyles in Capnodiales. Stud Mycol 95:381–414.

Hongsanan S, Hyde KD, Phookamsak R et al 2020b – Refined families of Dothideomycetes: Dothideomycetidae and Pleosporomycetidae. Mycosphere 11(1553):2107.

Khodaparast SA, Pourmoghaddam MJ, Amirmijani A et al 2020 – Phylogenetic structure of the Iranian capnodiaceous sooty mould fungi inferred from the sequences of rDNA regions and TEF1–a. Mycol Prog 19:155–169.

Liu JK, Hyde KD, Jones EBG et al 2015 – Fungal diversity notes 1–110: taxonomic and phylogenetic contributions to fungal species. Fungal Divers 72:1–197.

Navarro-de-la-Fuente L, Salinas-Castro A, Ramos A et al 2022 – Chaetocapnodium zapotae sp. nov. on Manilkara zapota in central Mexico. Mycotaxon 137:179–187.

 

Entry by 

Diana Sandamali Marasinghe, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai, 50150, Thailand

 

Published online 29 August 2023

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