Fungalpedia – Note 1231, Atkinsonella
Atkinsonella. Diehl.
Citation when using this data: Hyde KD et al. 2020 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Clavicipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Notes – This grass pathogen was separated from Epichloe based on morphology, producing both micro- and macroconidia (Diehl 1950) and is characterised by stromata immersed and cylindrical spores (Ambrose et al. 2014). The asexual morph is acremonium-like (Ginns 2011). In this entry, Atkinsonella hypoxylon is illustrated. Atkinsonella hypoxylon was described as Epichloe hypoxylon from infected grass (Peck 1875). Diehl (1950) transferred it to Atkinsonella hypoxylon based on morphology. Ginns (2011) accepted Balansia hypoxylon as the correct name but this was not confirmed by Ambrose et al. (2014). The specimen (DAOM 211269) was identified as Balansia hypoxylon because of its perithecia and mature ascospores (Fig. 71, Ginns 2011).
Type species: Atkinsonella hypoxylon (Peck) Diehl, Agric. Monogr. U.S.D.A. 4: 49 (1950).
Other accepted species: Species Fungorum – search Atkinsonella.
Figure 1 – Atkinsonella hypoxylon (Material examined – Canada, on living and dead stems of current year’s growth of Danthonia spicata, 9 October 1983, J. Ginns, DAOM 211269). a Herbarium material. b-d Overview of the stromata and host. e Vertical section of the ascomata. f Stromata. g-i Immature to mature asci. j, k Secondly ascospores. Scale bars: c, d = 1 mm, e, f = 500 μm, g-i = 50 μm, j, k = 20 μm.
References
Diehl WW. 1950 – Balansia and the Balansiae in America. Agriculture Monograph 4, 78.
Peck CH. 1875 – Report of the Botanist (1873). Annual Report on the New York State Museum of Natural History 27, 73–116.
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