Fungalpedia – Note 1950, Pseudoplagiostoma
Pseudoplagiostoma Cheew., M.J. Wingf. & Crous
Citation when using this data: Hyde KD et al. 2020 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Pseudoplagiostomataceae, Diaporthales, Diaporthomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Pseudoplagiostoma is a foliar pathogen of Eucalyptus with astromatic, slanted to horizontal, globose perithecia lacking paraphyses, with aseptate ascospores with terminal, elongate, hyaline appendages and a cryptosporiopsis-like asexual morph. Cryptosporiopsis eucalypti falls in Diaporthales in the phylogenetic analyses using combined gene analysis of ITS and tub2 gene sequence data which resolved the species in Pseudoplagiostoma (Cheewangkoon et al. 2010). A newly added species is P. dipterocarpi, an asexual endophyte isolated from the leaves of Dipterocarpus tuberculatus in Chiang Mai, Thailand (Suwannarach et al. 2016). The asexual morph of Pseudoplagiostoma mangiferae isolated from a living leaf of Mangifera in Yunnan, China was introduced by Phookamsak et al. (2019) based on the morphology and phylogenetic analyses of a combined ITS, LSU, tub2 and tef1 dataset.
Type species: Pseudoplagiostoma eucalypti Cheew., M.J. Wingf. & Crous
Other accepted species: Species Fungorum – search Pseudoplagiostoma.
Figure 1 – Pseudoplagiostoma mangiferae (Material examined – CHINA, Yunnan Province, Xishuangbanna, Jinghong, Nabanhe, associated with leaf blight symtom on living leaf of Mangifera sp. (Anacardiaceae), 21 November 2015, R. Phookamsak, XB010, KUN-HKAS 102244, holotype). a Leaf blight symptom on living leaf of Mangifera sp. b Conidiomata on host surface. c, d Sections through conidiomata. e Conidioma wall and the base. f, g Conidiogenous cells. h Paraphyses. i-k Conidia. Scale bars: c-e = 50 μm, f-h = 20 μm, j = 25 μm, i, k = 10 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