Fungalpedia – Note 1018, Capronia

 

Capronia. Sacc.

Citation when using this data: Tian Q et al. 2021 (in prep.) – Fungalpedia, Ascomycota.

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

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

Saprobic on cone of Pinus sylvestris. Sexual morph: Ascomata perithecioid, arising singly, dispersed, superficial, immersed only at the base when mature, subglobose, black, smooth-walled, but with aseptate or 1-multi septate, unbranched, dark brown setae, arising from the upper part, ostiolate. Setae smooth-walled, rounded at the apex and hardly attenuated or tapering to the end. Ostiole lateral, black, flattened. Peridium thick, composed of multi-layered, hyaline to brown cells of textura angularis. Hamathecium gelatinized, lacking pseudoparaphyses. Asci 8-spored or multi-spored, bitunicate, obpyriform to broadly clavate, wall apically thickened, J–. Ascospores overlapping, irregularly biseriate, oval to fusiform, muriform, hyaline to yellow-brown or grey, 1–7-trans-septate, constricted at the septa, with or without longitudinial septa, some slightly curved, smooth-walled, with or without guttules, without a gelatinous sheath or appendages. Asexual morph: hyphomycetous. 

Notes – Capronia is cosmopolitan and includes saprobes on rooting or decaying plant tissues, taxa on the thalli of lichens on Ascomycota and Basidiomycota and hypersaprobes, fungicolous and lichenicolous taxa (Cooke 1871, Munk 1957, Barr 1987, 1991, Müller et al. 1987, Untereiner 1997, 2000, Halıcı et al. 2010, Sun et al. 2019). With the exception of C. glabra and
C. episphaeria, the genus is characterized by setose ascomata with periphysate ostioles, bitunicate asci and 1-multi-septate or muriform ascospores (Barr 1991, Hsieh et al. 1997, Untereiner 1997, 2000, Halıcı et al. 2010). Asexual morphs of Capronia are black yeasts and related to species in Exophiala, Ramichloridium, the Rhinocladiella species complex and phialophora and cladophialophora-like species (Müller et al. 1987, Untereiner et al. 1995, Untereiner 2020). However, all the sexual and asexual links should be confirmed based on culture and DNA molecular sequences. Establishing the asexual and sexual morph connections should be a focus of future work.

Type species: Capronia sexdecimspora (Cooke) Sacc. [as ‘sexdecemspora’].

Other accepted species: Species Fungorum – search Capronia.

 

image

 

Figure 1 – Capronia sexdecimspora (IMI 230725). a Envelop, slide and collection information of Capronia sexdecimspora. b Squash mount of ascomata. c Setae. d, e Asci with ascospores. f–h Ascospores. Scale bars: b = 50 μm, c = 20 μm, d, e = 10 μm, f–h = 5 μm.

 

References

Barr ME. 1987 – Prodromus to class Loculoascomycetes. University of Massachusetts, Amherst.

Barr ME. 1991 – Notes on and additions to North-American members of the Herpotrichiellaceae. Mycotaxon 41, 419–436.

Cooke MC. 1871 – Handbook of British fungi. Vol 2. MacMillan and Co., London, p 492.

Halıcı MG, Akata I, Kocakaya M. 2010 – New records of lichenized and lichenicolous fungi from Turkey. Mycotaxon 114, 311–314.

Müller E, Petrini O, Fisher PJ, Samuels GJ et al. 1987 – Taxonomy and anamorphs of the Herpotrichiellaceae with notes on generic synonomy. Transactions of the British Mycological Society 88, 63–74.

Munk A. 1957 – Danish pyrenomyctes. Dansk Botanisk Arkiv Udgivet af Dansk Botanisk Forening 17, 1–491.

Sun JZ, Liu XZ, McKenzie EH, Jeewon R et al. 2019 – Fungicolous fungi: terminology, diversity, distribution, evolution, and species checklist. Fungal Diversity 95(1), 337–430.

Untereiner WA 2000 – Capronia and its anamorphs: exploring the value of morphological and molecular characters in the systematics of the Herpotrichellaceae. Studies in Mycology 45, 141–149.

Untereiner WA, Straus NA, Malloch D. 1995 – A molecular-morphotaxonomic approach to the systematics of the Herpotrichiellaceae and allied black yeasts. Mycological Research 99, 897–913.

Untereiner WA. 1997 – Taxonomy of selected members of the ascomycete genus Capronia with notes on anamorph-teleomorph connection. Mycologia 89, 120–131.

 

Entry by

Qing Tian, 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

 

Published online 16 December 2021

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