Acrospermum compressum
Acrospermum compressum Tode, Fung. mecklenb. sel. (Lüneburg) 1: 8 (1790).
Index Fungorum number: IF 140891; Facesoffungi number: FoF11849 , Fig. 1
Description: see Hyde et al. (2013, 2018); Minter et al. (2007); Hudson et al. (2019).
Material considered: see Hyde et al. (2013, 2018); Minter et al. (2007); Hudson et al. (2019).
Fig. 1 Acrospermum spp. (a–i A. urticae, IT 3999, holotype). a–d Ascomata on host surface. e Ascoma in vertical section. f Peridium. g, h Asci. i Ascospores. (j–o A. longisporium, MFLU 17-2849, holotype). j Ascomata on host surface. k Section through ascomata. l Peridium. m Pseudoparaphyses. n Ascus. o Ascospore. Scale bars: a = 2000 μm, b, e, j = 500 μm, c, d = 300 μm, f, g, l = 100 μm, h = 20 μm, i = 40 μm, k = 200 μm, m–o = 50 μm.
Importance and distribution
Acrospermum is useful for pharmaceutical and food industry as there is evidence of unique polysaccharide containing mannofuranose from the cell wall of A. compressum (Prieto et al. 2007). There are 42 Acrospermum epithets in Index Fungorum (2022), but several species have been transferred to Ascocoryne, Cyanodermella, Glyphium, Holwaya, Hypocreopsis and Typhula. Acrospermum comprises 27 species known on Adenostyles alpina (Asteraceae), Aegopodium podagraria (Apiaceae), Agropyron sp. (Poaceae), Agrostis perennans (Poaceae), Alnus rugosa (Betulaceae), Aruncus dioicus (Rosaceae), Betula nigra (Betulaceae), Boehmeria cylindrica (Urticaceae), Brachypodium sylvaticum (Poaceae), Bromus sp. (Poaceae), Broussonetia papyrifera (Moraceae), Calamagrostis canadensis (Poaceae) amongst others. Acrospermum is reported from Asia (China, Pakistan, Russia), Europe (Austria, Denmark, Germany, Netherlands, Poland, Portugal, Sweden, United Kingdom) and North America (Canada, The United States).
References
Arnaud G. 1930 – Les Astérinées. V. Études sur les champignons parasites: Caliciacées, Hémisphériacées, etc. Annales des épiphyties 16, 235–302.
Brandriff H. 1936 – The Development of the Ascocarp of Acrospermum Compressum. Mycologia 28, 3, 228–235.
Clements FE, Shear CL.1931– Genera of fungi, 2nd edn. H.W. Wilson Company, New York.
Ellis JB, Everhart BM. 1892 – The North American pyrenomycetes. Newfield, NJ.
Eriksson OE.1981 – The families of bitunicate ascomycetes. Nordic Journal of Botany 1, 800.
Hudson O, Buchholz M, Doyle V, Sundue MA. 2019 – Multilocus phylogeny of Acrospermaceae: New epibiotic species and placement of Gonatophragmium, Pseudovirgaria, and Phaeodactylium anamorphs. Mycologia 111, 1041–1055.
Hyde KD, Chaiwan N, Norphanphoun C, Boonmee S et al. 2018 – Mycosphere notes 169–224. Mycosphere 9, 71–430.
Hyde KD, Jones EBG, Liu JK, Ariyawansa H et al. 2013 – Families of Dothideomycetes. Fungal Diversity 63, 1–313.
Lindau G. 1896 – Hysteriineae. In: Engler & Prantl, Naturliche Pflanzenfamilien. I. Teil, I. Abteilung 1, 265–278.
Minter DW, Peredo HL, Watson AT. 2007 – Acrospermum chilense sp. nov. from Chile and the Acrospermales ord. nov. Boletin de la Sociedad Argentina de Botanica 42, 107–112.
Prieto A, Leal A, Giménez-Abián M, Canales A, Jiménez-Barbero J, Bernabé M. 2007 – Isolation and structural determination of a unique polysaccharide containing mannofuranose from the cell wall of the fungus Acrospermum compressum. Glycoconjugate journal 24, 421–428.
Rehm H. 1887 – In Rabenhorst's Kryptogamenflora von Deutschland, Oes- terreich, und der Schweiz. I3, 55.
Riddle LW. 1920 – Observations on the genus Acrospermum. Mycologia 12, 175–181.
von Höhnel FXR. 1917 – System der Phacidiales v. H. Sonderabdruck. Berichte der Deutschen Botanischen Gesellschaft 25, 416–422.
Webster J. 1956 – Conidia of Acrospermum compressum and A. graminum. Transactions of the British Mycological Society 39, 361–366.
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