Fungalpedia – Note 716, Coccodiniaceae

 

Coccodiniaceae. Höhn. ex Woron.

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

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Chaetothyriales, Chaetothyriomycetidae, Eurotiomycetes, Pezizomycotina, Ascomycota, Fungi

Epiphytic or biotrophic on leaves as sooty moulds associated with sugary exudates. Subiculum well-developed, superficial, loose, comprising effuse, branched, dark brown to blackish brown, septate hyphae. Sexual morph: Ascomata superficial, solitary to gregarious, uniloculate, globose to subglobose, brown to blackish brown, embedded in subiculum or sometimes sessile on a subiculum, developing on the surface of the host, cupulate when dry, with periphyses or periphysoids, ostiolate, with or without papillate, covering individual hyphae, with or without setae. Peridium composed of several layers with outer layers of dark brown cells to inner layers hyaline to light brown flattened cells. Hamathecium comprising filiform, hyaline, septate paraphyses or lacking. Asci 8-spored, bitunicate, saccate, broadly clavate to oval, sessile or short pedicellate, lacking an ocular chamber, forming in a basal layer of ascoma wall. Ascospores overlapping 1–3-seriate, irregularly arranged, ellipsoid to broadly clavate, fusiform, hyaline to lightly pigmented, yellowish to brownish at maturity, 2–4-transseptate, or muriform, slightly constricted at the septa, thin-walled, without a gelatinous sheath or appendages, eguttulate. Asexual morph: hyphomycetous (Hughes 1976; Winka et al. 1998; Crous et al. 2007).

Notes: Species of Coccodiniaceae are regarded as sooty moulds based on their dark brown to blackish brown, superficial mycelium and close association with sugary exudates. Eriksson (1981) introduced this family to accommodate Coccodinium (type genus), Dennisiella and Limacinula. Later, Bisbyopeltis and Microxiphium were later added by Kirk et al. (2008). Species of this family are characterized by a dark superficial subiculum, limacinuloid ascomata, periphysate ostioles, saccate, broadly clavate to oval asci, fusiform, hyaline to lightly pigmented, yellowish to brownish 2–4-trans-septate, or muriform ascospores with a hamathecium of paraphyses (Tian et al. 2021). Liu and Hall (2004) assigned Coccodiniaceae to Chaetothyriales and subsequently, Crous et al. (2007) transferred this genus to Herpotrichiellaceae (Chaetothyriales) based on a Bayesian analysis of the LSU sequence data. However, Tian et al. (2021) provided an updated backborn phylogentic tree for Eurotiomycetes and re-established as a family in Chaetothyriales based on ITS and LSU sequence data.

Type genus: CoccodiniaceaeA. Massal., Atti Inst. Veneto Sci. lett., ed Arti, Sér. 3 5: 336 (1860) [1859–1860].

 

References

Crous PW, Schubert K, Braun U et al 2007 – Opportunistic, human- pathogenic species in the Herpotrichiellaceae are phenotypically similar to saprobic or phytopathogenic species in the Venturiaceae. Stud Mycol 64:123–133.

Eriksson OE 1981 – The families of bitunicate Ascomycetes. Nord J Bot 1:800.

Hughes SJ 1976 – Sooty moulds. Mycologia 68:693–820.

Kirk P, Cannon P, Minter D et al 2008 – Dictionary of the Fungi, 10th edn. CAB International, Wallingford.

Liu YJ, Hall BD 2004 – Body plan evolution of Ascomycetes, as inferred from an RNA polymerase II phylogeny. Proc Natl Acad Sci 101:4507–4512.

Tian Q, Chomnunti P, Lumyong S et al 2021 – Phylogenetic relation- ships and morphological reappraisal of Chaetothyriales. Myco- sphere 12:1157–1261.

Winka K, Eriksson OE, Bång Å 1998 – Molecular evidence for recognizing the Chaetothyriales. Mycologia 90:822–830.

 

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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