title: Diversity of diatrypaceous fungi associated with grapevine canker diseases in California.
abstract: Eutypa lata is the most common diatrypaceous fungus in grapevine cankers. This study was undertaken to determine the presence and diversity of other members of the Diatrypaceae in grapevines in California. We isolated into pure culture 11 species of Diatrypaceae from the wood of diseased grapevines including Cryptosphaeria pullmanensis, Cryptovalsa ampelina, Diatrype oregonensis, D. stigma, D. whitmanensis, Diatrype sp., Diatrypella verrucaeformis and four putative species of Eutypella. Species were identified or grouped morphologically and by phylogenetic analyses of the complete sequence of the internal transcribed spacer (ITS) of the rDNA and beta-tubulin gene. Diatrypaceous fungi also occurred frequently on the native flora surrounding vineyards, thus serving as possible inoculum sources for these putative pathogens.
authors.affiliation: Department of Plant Pathology, University of California, Davis, California 95616, USA.
authors.forename: Florent P
authors.initials: FP
authors.lastname: Trouillas
authors.forename: José R
authors.initials: JR
authors.lastname: Urbez-Torres
authors.forename: Walter D
authors.initials: WD
authors.lastname: Gubler
mesh_terms: D001483:Base Sequence; D002140:California; D004271:DNA, Fungal / Q000737:chemistry / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000737:chemistry / Q000235:genetics; D014644:Genetic Variation; D008969:Molecular Sequence Data; D010802:Phylogeny; D010935:Plant Diseases / Q000382:microbiology*; D016133:Polymerase Chain Reaction; D016415:Sequence Alignment; D014404:Tubulin / Q000737:chemistry / Q000235:genetics; D027843:Vitis / Q000382:microbiology*; D013098:Xylariales / Q000235:genetics* / Q000648:ultrastructure
chemical_list: D004271:DNA, Fungal; D021903:DNA, Ribosomal Spacer; D014404:Tubulin