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Atradidymella muscivora gen. et sp. nov. (Pleosporales) and its anamorph Phoma muscivora sp. nov.: A new pleomorphic pathogen of boreal bryophytes
Download2009
During a survey of bryophilous fungi from boreal and montane habitats, 12 isolates of a hitherto unknown plant pathogenic member of the Pleosporales were recovered from Aulacomnium palustre , Hylocomium splendens , and Polytrichum juniperinum , and described as Atradidymella muscivora gen. et sp....
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Endomembrane system of aspen roots plays a key role in defense against a common fungal endophyte Cryptosporiopsis radicicola
Download2009
Tsuneda, I., Wang, W., Currah, R.S., Tsuneda, A.
The host-endophyte interaction between roots of aspen (Populus tremuloides) andCryptosporiopsis radicicola was examined primarily by transmission electron microscopy. Hyphae growing on the exterior of the inoculated roots had a thick, electron-dense, adhesive sheath. At hyphal contact and...
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2009
Tsuneda, A., Davey, M.L., Currah, R.S.
Atradidymella muscivora (Pleosporales) is a bryophyte pathogen that infects the mosses Aulacomnium palustre , Hylocomium splendens , and Polytrichum juniperinum . Light and scanning electron microscopy and extracellular enzyme production were used to characterize the interactions between this...
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2009
Gibas, C.F.C., McGhee, D., Wang, W., Currah, R.S., Tsuneda, A
Phialocephala urceolata sp. nov. was isolated from a black film that had developed on a watersoluble proprietary heparin solution (pH 2.5). Morphological and enzymatic characters, along with phylogenetic analyses of rDNA sequence data, indicated that the conidial fungus is closely related to...
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Evidence that the gemmae of Papulaspora sepedonioides are neotenous perithecia in the Melanosporales
Download2008
Tsuneda, A., Davey, M.L., Currah, R.S.
Papulaspora sepedonioides produces large multicellular gemmae with several, thick-walled central cells enclosed within a sheath of smaller thinwalled cells. Phylogenetic analysis of the large subunit rDNA indicates P. sepedonioides has affinities to the Melanosporales (Hypocreomycetidae). The...
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Patterns in the occurrence of saprophytic fungi carried by arthropods caught in traps baited with rotted wood and dung
Download2007
Fungi from approximately 1700 individual arthropods that had been captured in traps set in aspen-dominated woodland in western Canada and baited with coyote dung, moose dung, white-rotted wood, brown-rotted wood and fiberglass were isolated in pure culture and identified. These data were analysed...
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2007
Greif, M.D., Tsuneda, A., Currah, R.S., Gibas, C.F.C.
Catinella olivacea is a discomycetous fungus often found fruiting within cavities in rotting logs. Because this habitat would lack the air currents upon which discomycete species normally rely for the dispersal of their forcibly ejected ascospores, we suspected an alternative disseminative...
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2006
Skinner, S., Currah, R.S., Tsuneda, A.
Light and electron microscopy showed that the reticuloperidium of thick-walled hyphae, characteristic of the mature ascoma of Auxarthron conjugatum, originated from branches that grew from the broad, gyre-like hyphal loops making up the ascomatal initials. Within the developing peridium, short,...
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Ascomatal Morphogenesis in Myxotrichum arcticum Supports the Derivation of the Myxotrichaceae from a Discomycetous Ancestor
Download2004
Electron microscopy shows that ascomata of Myxotricum arcticum bear a striking resemblance to discocarps in morphogenesis and in previously overlooked aspects of gross morphology. Although mature ascomata of M. arcticum superficially resemble reticuloperidial cleistothecia common in the...
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Morphology and Phylogenetic Placement of Endoconidioma, a New Endoconidial Genus from Trembling Aspen
Download2004
Tsuneda, A., Hambleton, S., Currah, R.S.
Endoconidioma populi gen. et sp. nov. is described from black subicula on twigs of trembling aspen, Populus tremuloides, in Alberta, Canada. Pycnidium- like conidiomata are produced on twigs and in culture, but, unlike pycnidia, conidiomata of E. populi have a closed peridium and a locule filled...