Fungalpedia – Note 1241, Gondwanamycetaceae

 

Gondwanamycetaceae Réblová, W. Gams & Seifert

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

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Ophiostomatales, Diaporthomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Pathogenic on terrestrial and aquatic plants or parasitic on beetles or saprobic in compost. Sexual morph: Ascomata perithecial, black, necks cylindrical to filiform, tapered towards the apex, terminating in ostiolar hyphae. Peridium fragile, thin-walled. Paraphyses lacking. Asci 8 to multispored, evanescent. Ascospores hyaline, aseptate, fusiform to lunate or falcate or allantoid with or without a gelatinous sheath. Asexual morph: Hyphomycetous. Conidiophores macronematous, mononematous, mono-verticillate or penicillate, brown. Conidiogenous cells phialidic. Conidia hyaline, 1-celled, smooth-walled, cylindrical to allantoid, aseptate, slimy (adapted from Maharachchikumbura et al. 2016b). 

Notes: Gondwanamycetaceae was introduced for Gondwanamyces and its asexual morph Custingophora by Réblová et al. (2011). The phylogenetic relationship of the asexual genera Knoxdaviesia and Custingophora were documented in earlier studies of Viljoen et al. (1999) and subsequently in Kolařík & Hulcr (2009) who suggested that Knoxdaviesia and Custingophora should be treated as synonyms. Van der Linde et al. (2012) and de Beer et al. (2013a) conducted a separate treatment of these genera and proposed using Knoxdaviesia, the oldest name, over Gondwanamyces (Hawksworth 2011, Moubasher et al. 2017). The apparent absence of interascal filaments in the ascomatal centrum and hyaline, allantoid ascospores, with a hyaline sheath, giving the spore a fusiform to lunate or falcate appearance, are characteristic features of the sexual morph of this family. The asexual morphs are characterized by conidiophores which are erect, darkly pigmented, and paler towards the apex, and are either monoverticillate, sometimes with a terminal vesicle or divergently penicillate, with whorls of phialides producing hyaline conidia while the conidiogenous loci are located at the base of the shallow collarette (Kolařík & Hulcr 2009, Moubasher et al. 2017). Réblová et al. (2011) and Maharachchikumbura et al. (2015, 2016b) confirmed the placement of this family in Microascales based on analysis of combined SSU, LSU and rpb2 data.

Type genus: Knoxdaviesia M.J. Wingf., P.S. van Wyk & Marasas.

 

References

de Beer ZW, Seifert KA, Wingfield MJ. 2013a – A nomenclator for ophiostomatoid genera and species in the Ophiostomatales and Microascales. 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 245–322.

Hawksworth DL. 2011 – A new dawn for the naming of fungi: impacts of decisions made in Melbourne in July 2011 on the future publication and regulation of fungal names. IMA Fungus 2, 155–162.

Kolařík M, Hulcr J. 2009 – Mycobiota associated with the ambrosia beetle Scolytodes unipunctatus (Coleoptera: Curculionidae, Scolytinae). Mycological Research 113, 44–60.

Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. 2015 – Towards a natural classification and backbone tree for Sordariomycetes. Fungal Diversity 72, 199–301.

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

Moubasher AH, Abdel-Sater MA, Zeinab Soliman. 2017 – Knoxdaviesia with K. serotectus (Van der Linde & Jol. Roux) Z.W. de Beer & M.J. Wingf. a new world record from the gut of red palm weevils. StudiesinFungi 2, 64–70.

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.

Van der Linde JA, Six DL, Wingfield MJ, Roux J. 2012 – New species of Gondwanamyces from dying Euphorbia tree in South Africa. Mycologia 104, 574–584.

Viljoen CD, Wingfield BD, Wingfield MJ. 1999 – Relatedness of Custingophora olivaceae to Gondwanamyces spp. from Protea spp. Mycological Research 103, 497–500.

 

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