Fungalpedia – Note 1088, Amplistromataceae
Amplistromataceae. Huhndorf, A.N. Mill., Greif & Samuels.
Citation when using this data: Hyde KD et al. 2020 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1,2
Classification: Amphisphaeriales, Incertae sedis, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on bark or wood or in highly acidic soil. Sexual morph: Stromata superficial, turbinate, obovoid to irregularly pulvinate, texture soft or firm with polystichous or monostichous ascomata, or stromata absent and ascomata single to clustered, with or without a hyphal subiculum. Ascomata globose or subglobose, with a cylindrical or rostrate neck. Paraphyses abundant, tapering, of broad cells. Asci 8-spored, unitunicate, cylindrical to clavate, pedicellate, apical ring J-. Ascospores uniseriate, unicellular, tiny, globose, hyaline. Asexual morph: Hyphomycetous. acrodontium-like. Conidiophores semi-macronematous or macronematous. Conidiogenous cells lageniform to ampulliform, elongating sympodially forming a rachis; conidiogenesis holoblastic-denticulate. Conidia single, globose, or ellipsoidal to lacrimose, hyaline to pale brown (adapted from Maharachchimbura et al. 2016b).
Notes – Amplistromataceae was introduced by Huhndorf et al. (2009) to accommodate Amplistroma and Wallrothiella and referred to Sordariomycetidae, family incertae sedis. Wallrothiella differs from Amplistroma mainly by the lack of stromatal structures (Huhndorf et al. 2009). Maharachchikumbura et al. (2015) introduced Amplistromatales with two families Amplistromataceae and Catabotryaceae. Phylogenetic analyses based on LSU, SSU, tef1 and rpb2 markers revealed that Amplistromatales is distinct from Meliolales and other members of Sordariomycetidae and was referred to Sordariomycetes incertae sedis until further data is available. Amplistromatales was accepted in Diaporthomycetidae, Sordariomycetes (Hongsanan et al. 2017, Wijayawardene et al. 2017a). In this entry, the asexual morphs of Acidothrix acidophila and sexual morph of Amplistroma erinaceum are illustrated.
Type genus: Amplistroma Huhndorf, A.N. Mill., Greif & Samuels, Mycologia 101(6): 907 (2009).
Figure 1 – Acidothrix acidophila (ex-type culture CBS 136259, redrawn from Hujslová et al. 2014). a-c Conidiophores and conidia. d Conidia. Scale bars: 10 μm.
Figure 2 – Amplistroma erinaceum (Material examined – PANAMA, La Chorrera, Llanito Verde, on decaying wood of Anacardium excelsum (Anacardiaceae), E. Esquivel, 5 September 2012, AH 43901, paratype). a, b Herbarium details. c, d Stroma (long ostiolar necks are in black arrows). e Longitudinal section of stroma. f Peridium. g Longitudinal section through the neck. h Asci. i Ascospores. j Paraphyses and asci (h, j redrawn from Checa et al. 2013). Scale bars: c = 1000 μm, d, e = 500 μm, g = 200 μm, f = 50 μm, h, j = 10 μm, i = 5 μm.
References
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