Fungalpedia – Note 1147, Ceratocystidaceae

 

Ceratocystidaceae Locq.

Citation when using this data: Hyde KD et al. 2020 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Microascales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Saprobic or pathogenic on plant materials and plants, parasitic in beetles, flies, or mites, and isolated from soil. Sexual morph: Ascomata perithecial, initially immersed to semi-immersed, becoming superficial, solitary or clustered; ascomatal bases globose, subglobose to obpyriform or ovoid, light brown or dark brown to black, clothed with spines or digitate or stellate appendages, ornamented or unornamented or with undifferentiated ornamental hyphae. Necks usually filiform, tapering and paler upwards. Ostiolar hyphae straight or divergent to convergent, aseptate, light brown to hyaline. Paraphyses lacking. Asci unitunicate, evanescent. Ascospores aseptate, hyaline, hat-shaped or varied in shape, ellipsoidal or elongate to slightly curved, with rounded ends, or oblong, cylindrical or narrowly fusiform to spindle-shaped, with eccentric wall thickening or surrounded by a sheath, accumulating in masses at tips of ostiole. Asexual morph: Conidiophores mononematous, single or aggregated in sporodochia or synnematous, septate, tapering towards apex, hyaline to pale brown or dark brown, unbranched or branched; in some genera such as Ceratocystis and Huntiella two types of conidiophores (primary and secondary) occur. Conidiogenous cells phialidic, borne terminally or laterally on vegetative hyphae, lageniform, tubular, rectangular, oblong cylindrical to flask-shaped, sometimes with a slightly flared collarette, subhyaline or pale brown, tapering towards the apex. Conidia unicellular, varied in shape, cylindrical to oblong, globose to subglobose, rectangular, single or formed in chains, with rounded or truncate ends, hyaline to pale brown, or becoming grey at maturity; in some genera with two types of conidia: (i) primary or bacilliform conidia hyaline, aseptate, cylindrical, and (ii) secondary or barrel-shaped conidia cylindrical to oblong, hyaline or becoming grey, aseptate, mostly in chains; aleurioconidia (some genera) globose to subglobose, ovoid to pyriform, single or in chains, hyaline or pale brown to brown (adapted from Réblová et al. 2011, Maharachchikumbura et al. 2016b).

Notes: Ceratocystidaceae (as “Ceratocystaceae”) was introduced by Locquin (1972), but was not validly published but validated by Réblová et al. (2011). It is currently placed in Microascales in the subclass Hypocreomycetidae (Réblová et al. 2011, de Beer et al. 2013b, Maharachchikumbura et al. 2016b). Within the order, it forms a monophyletic group, distinct from Gondwanamycetaceae based on strong bootstrap support (Réblová et al. 2011). Historically, Ceratocystidaceae and especially Ceratocystis included a highly heterogeneous group of species based on similar morphology. With the aid of multigene phylogenetic analyses, morphological characteristics and ecological preferences, several genera were delimited and placed in Ceratocystidaceae, which include Ambrosiella, Berkeleyomyces, Bretziella, Ceratocystis, Chalaropsis, Davidsoniella, Endoconidiophora, Huntiella, Meredithiella, Phialophoropsis and Thielaviopsis (Peyronel 1916, de Beer et al. 2014, 2017, Mayers et al. 2015, Nel et al. 2018).

Type genus: Ceratocystis Ellis & Halst., New Jers. agric. Exp. Sta. Bull. 76: 14 (1890).

 

References

de Beer ZW, Seifert KA, Wingfield MJ. 2013b – The ophiostomatoid fungi: their dual position in the Sordariomycetes. In: Seifert KA, de Beer ZW, Wingfield MJ (eds). The ophiostomatoid fungi: expanding frontiers CBS biodiversity series. CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands 12, 1–9.

de Beer ZW, Duong TA, Barnes I, Wingfield BD, Wingfield MJ. 2014 – Redefining Ceratocystis and allied genera. Study in Mycology 79, 187–219.

de Beer ZW, Marincowitz S, Duong TA, Wingfield MJ. 2017 – Bretziella, a new genus to accommodate the oak wilt fungus, Ceratocystis fagacearum (Microascales, Ascomycota). MycoKeys 27, 1–19.

Locquin MV. 1972 – Synopsis generalis fungorum, excerpta ex libro’De Taxia Fungorum’. Revue de Mycologie.

Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. 2016b – Families of Sordariomycetes. Fungal Diversity 79, 1–317.

Mayers CG, McNew DL, Harrington TC, Roeper RA et al. 2015 – Three genera in the Ceratocystidaceae are the respective symbionts of three independent lineages of ambrosia beetles with large, complex mycangia. Fungal Biology 119, 1075–1092.

Nel WJ, Duong TA, Wingfield BD, Wingfield MJ, de Beer ZW. 2018 – A new genus and species for the globally important, multihost root pathogen Thielaviopsis basicola. Plant pathology 67, 871–882.

Peyronel B. 1916 – Una nuova malattia del lupino prodotta da Chalaropsis thielavioides Peyr. Le Stazioni Sperimentali Agrarie Italiane 49, 583–593.

Réblová M, Gams W, Seifert KA. 2011 – Monilochaetes and allied genera of the Glomerellales, and a reconsideration of families in the Microascales. Studies in Mycology 68, 163–191.

 

Entry by

Kevin David Hyde, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, P.R. China, Center of Excellence in Fungal Research, 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, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P.R. China, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, P.R. China

 

Published online 28 February 2020

Back to Glossary Index Page