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Permanent link (DOI): https://doi.org/10.7939/R3G737F4D

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Morphology and Phylogenetic Placement of Endoconidioma, a New Endoconidial Genus from Trembling Aspen Open Access

Descriptions

Author or creator
Tsuneda, A.
Hambleton, S.
Currah, R.S.
Additional contributors
Subject/Keyword
black yeasts
SSU and ITS rDNA
meristematic fungi
taxonomy
subiculum
Dothideomycetes
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
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 with conidiogenous cells that form conidia endogenously. These endoconidia are hyaline, unicellular and released by the dissolution of the peridial cell wall. In addition to endoconidia, mostly two-celled conidia that form blastically from undifferentiated hyphae occur often in culture but are observed only occasionally on Populus twigs. No coelomycetous taxa have been reported to produce endoconidia, and both the morphological features and DNA sequence data demonstrate that Endoconidioma is distinct from the previously established endoconidial genera. Parsimony analyses of portions of the nuclear ribosomal RNA gene (SSU and ITS) suggest that Endoconidioma is closely related phylogenetically to members of the Dothideales and allied anamorphs in Hormonema and Kabatina.
Date created
2004
DOI
doi:10.7939/R3G737F4D
License information
Rights
Copyright 2004 by The Mycological Society of America, Lawrence, KS 66044-8897
Citation for previous publication
Morphology and Phylogenetic Placement of Endoconidioma, a New Endoconidial Genus from Trembling Aspen A. Tsuneda, S. Hambleton and R. S. Currah Mycologia , Vol. 96, No. 5 (Sep. - Oct., 2004), pp. 1128-1135
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