Dothiorella vidmadera, a novel species from grapevines in Australia and notes on Spencermartinsia  

作　　者：Wayne M.Pitt Jose RamonÚrbez-Torres Florent P.Trouillas 

机构地区：[1]National Wine and Grape Industry Centre,School of Agricultural and Wine Sciences,Charles Sturt University,Locked Bag 588,Wagga Wagga,NSW 2678,Australia [2]Pacific Agri-Food Research Centre,4200 Highway 97,Box 5000,Summerland,BC V0H1Z0,Canada [3]Department of Plant Pathology,University of California,Davis,CA 95616,USA

出　　处：《Fungal Diversity》2013年第4期209-219,共11页真菌多样性（英文）

基　　金：funded by the Winegrowing Futures Program,a joint initiative between the NWGIC;the Grape and Wine Research and Development Corporation(GWRDC);F.P.Trouillas was the recipient of a GWRDC travel grant for the duration of these studies.

摘　　要：Strains of a coelomycete isolated from grapevine cankers in southeastern Australia and identified as Dothiorella iberica in previous studies are redescribed in this study as a novel species based on morphological characters and phylogenetic analyses of DNA sequences of the internal transcribed spacer region(ITS1-5.8S-ITS2),and partial sequences of the translation elongation factor 1-αandβ-tubulin genes.Dothiorella vidmadera sp.nov.is most closely related to D.iberica,D.americana and D.sarmentorum,but differs in morphological characters and DNA sequences.All four species are known to be associated with Botryosphaeria dieback of grapevines.Additionally,an unidentified ascomycete isolated from dead wood of grapevines in Western Australia is described.Phylogenetically,strains were most closely related to Spencermartinsia viticola,and bore conidia with morphological characters and dimensions consistent with published descriptions.However,ascospores were shorter and narrower than previously reported and lacked the terminal apiculi that typify the genus.

关 键 词：BOTRYOSPHAERIACEAE Grapevine trunk diseases Grapevine canker Multigene phylogeny TAXONOMY 

分 类 号：H31[语言文字—英语]