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Type: Article
Published: 2017-08-08
Page range: 239–249
Abstract views: 20
PDF downloaded: 1

Phylogenetic taxonomy of Dematiopleospora fusiformis sp. nov. (Phaeosphaeriaceae) from Russia

Engineering and Research Center for Southwest Bio-Pharmaceutical Resources of National Education Ministry of China, Guizhou University, Huaxi District, 550025, Guiyang Guizhou, P.R. China Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, P.R. China
Department of Health Sciences, Faculty of Science, University of Mauritius, Reduit, Mauritius
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, P.R. China
Beijing Key Laboratory of Environmental Friendly Management on Fruits Diseases and Pests in North China, Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, P.R. China
Russian Research Institute of Floriculture and Subtropical Crops, Sochi, 354002, Yana Fabritsiusa street, 2/28, Krasnodar region, Russia
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
Engineering and Research Center for Southwest Bio-Pharmaceutical Resources of National Education Ministry of China, Guizhou University, Huaxi District, 550025, Guiyang Guizhou, P.R. China
Dothideomycetes rRNA sequence analyses new species Pleosporales morphology Fungi

Abstract

Dematiopleospora fusiformis sp. nov., isolated from a decaying upright stem of Achillea millefolium (Asteraceae) in the Rostov Region of Russia is described herein based on morphology and ITS, LSU and SSU rRNA sequence based analyses. The new taxon is similar to D. mariae, the type species of Dematiopleospora, and shares similar features such as unilocular ascomata with brown setae in the ostiole, cylindrical asci and fusiform, muriform ascospores. However, D. fusiformis differs from the type and other species in Dematiopleospora in having light brown and larger ascospores. Maximum likelihood and Bayesian inference analyses reveal that our new taxon belongs to the family Phaeosphaeriaceae and is nested in between Dematiopleospora mariae and D. cirsii with high support. A comparison with other similar species also points out to other morphological differences that segregates D. fusiformis. Phylogenies also indicate that the affinities of two other Dematiopleospora species (viz. D. luzulae and D. alliariae) are rather ambiguous. Although the latter clearly fits within the Phaeosphaeriaceae, they are phylogenetically distant from all other Dematiopleospora strains that belong to this genus and in addition their relationships to other taxa are not supported. Further taxonomic studies are warranted to clarify their morpho-phylo taxonomy. Dematiopleospora mariae, D. cirsii and D. fusiformis could be treated as Dematiopleospora sensu stricto.