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Taxonomic circumscription and phylogenetics of novel didymellaceous taxa with brown muriform spores

Studies in Fungi 2018年第1期3卷 152-175页

作者： Wanasinghe DN Jeewon R Peršoh D Jones EBG Camporesi E Bulgakov TS Gafforov YS Hyde KD Key Laboratory for Plant Biodiversity and Biogeography of East Asia(KLPB) Kunming Institute of BotanyChinese Academy of ScienceKunming 650201Yunnan China Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai57100Thailand World Agro Forestry Centre East and Central Asia132 Lanhei RoadKunming 650201Yunnan China Department of Health Sciences Faculty of ScienceUniversity of MauritiusReduitMauritius AG Geobotany Faculty of Biology and BiotechnologyRuhr-Universitat BochumUniversitatsstraße 15044801 BochumGermany Nantgaredig 33B St.Edwards RoadSouthseaHants.PO53DHUK Societàper gli Studi Naturalistici della Romagna C.P.144Bagnacavallo(RA)Italy A.M.B.Gruppo Micologico Forlivese“Antonio Cicognani” Via Roma 18ForlìItaly A.M.B.Circolo Micologico“Giovanni Carini” C.P.314BresciaItaly Russian Research Institute of Floriculture and Subtropical Crops Sochi354002Yana Fabritsiusa street2/28Krasnodar regionRussia Laboratory of Mycology Institute of BotanyAcademy of Sciences of the Republic of Uzbekistan32 Durmon yuli StreetTashkent 100125Uzbekistan

Sexual morph of didymellaceous taxa are characterized by their ascomata with relatively thin peridium,cylindric-clavate to clavate,short-pedicellate or apedicellate asci,hyaline to brown,1-septate to muriform *** asexual morphs are coelomycetous and comprising pycnidial or acervulus conidiomata,phialidic,hyaline conidiogenous cells and hyaline or pale brown,septate or aseptate *** majority of these cosmopolitan species are plant associated fungi which can be pathogens on a wide range of hosts and some species are of particular relevance for quarantine *** studies have significantly improved the taxonomy and systematics of didymellaceous taxa based on molecular *** contrast to the accurate and detailed studies on the asexual morphs which are common obligate pathogens,information on their usually saprobic sexual morphs is still *** these phenotypically diverse species,spore characteristics are quite unique as most have hyaline spores with 0-1 septum,while only Neomicrosphaeropsis and Didymellocamarosporium are reported as producing pigmented,muriform *** dematiaceous muriform spores are characteristic of a considerable number of species that may be quite divergent in other *** taxonomic investigations on the diversity of didymellaceous taxa,we have isolated species from Alhagi pseudalhagi,Coronilla emerus,Cytisus sp.,Elaeagnus angustifolia and Spartium junceum in Italy,Russia and Uzbekistan.A comprehensive phylogeny,based on four loci(ITS,LSU,rpb2 and tub2)is used to infer species *** morphological descriptions and in-depth phylogenetic investigations of five new species *** coronillae-emeri,Microsphaeropsis spartii-juncei,Neomicrosphaeropsis alhagi-pseudalhagi,*** and *** are presented.

关键词： five new species coelomycetes Italy multi-gene phylogeny Pleosporales Russia saprobic taxonomic-ambiguity Uzbekistan

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