Fungalpedia – Note 1242, Knoxdaviesia

 

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

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

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

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

Knoxdaviesia was established for K. proteae, and the asexual morph of this species was described as Ceratocystiopsis proteae (Wingfield et al. 1988). Subsequently, Marais et al. (1998) introduced the sexual morph genus Gondwanamyces based on G. proteae to accommodate two ophiostomatoid species Ceratocystiopsis proteae (Wingfield et al. 1988) and Ophiostoma capense (Wingfield & van Wyk 1993). Gondwanamyces was characterized by black, globose to subglobose perithecia and aseptate ascospores, with or without a sheath. The asexual morph Knoxdaviesia formed phialoconidia holoblastically from obovoid conidiogenous cells. Sequence data showed that Knoxdaviesia could be accommodated in Custingophora (Kolařík & Hulcr 2009, Moubasher et al. 2017). Van der Linde et al. (2012) rejected the concept of synonymy of Knoxdaviesia in Custingophora and de Beer et al. (2013a) erected Knoxdaviesia over Gondwanamyces according to the one fungus one name protocol (Hawksworth 2011, Hawksworth et al. 2011, Moubasher et al. 2017). In this entry, Knoxdaviesia proteae is illustrated.

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

Other accepted species: Species Fungorum – search Knoxdaviesia.

 

image

 

Figure 1 – Knoxdaviesia proteae (Material examined – SOUTH AFRICA, Cape Province, Stellenbosch, from flower within the inflorescence, infested by insects, L.J. Strauss, 7 October 1985, PREM 48924 holotype) and asexual morph redrawn from Wingfield et al. (1988). a Herbarium material. b, c Ascomata on host. d Long neck of ascomata. e, f Asci. g Ascospores. h-j Conidiophores, conidiogenous cells and conidia. Scale bars: b, c = 100 μm. d = 50 μm, g = 20 μm, e, f = 5 μm.

 

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.

Hawksworth DL, Crous PW, Redhead SA, Reynolds DR et al. 2011 – The Amsterdam declaration on fungal nomenclature. IMA Fungus 2, 105–112.

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

Marais GJ, Wingfield MJ, Viljoen CD, Wingfield BD. 1998 – A new Ophiostomatoid genus from Protea infructescences. Mycologia 90, 136–141.

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.

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.

Wingfield MJ, van Wyk PS. 1993 – A new species of Ophiostoma from Protea infructescences in South Africa. Mycological Research 97, 709–716.

Wingfield MJ, van Wyk PS, Marasas WFO. 1988 – Ceratocystiopsis proteae sp. nov., with a new anamorph genus. Mycologia 80, 23–30.

 

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

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