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7 results for “Bryoria”
Systemic infection of Bryoria (Lecanoromycetes, Ascomycota) by Athelia (Agaricomycetes, Basidiomycota) in western North America
<p><em><span>Bryoria</span></em><span> (Parmeliaceae, Ascomycota) is one of the dominant genera of hair lichens in western North America and is characteristic of high-elevation conifer forest ecosystems. In areas where <em>Bryoria</em> is abundant, it is common to find thalli in which the thalline filaments become conglutinated, forming brittle dead zones. After sampling <em>Bryoria</em> <em>thalli</em> across western Canada and the northwestern United States at different times of the year, we found this dieback phenomenon is associated with the winter growth of a mold-forming basidiomycete. We report that this fungus belongs to <em>Athelia</em> (Atheliaceae, Basidiomycota) a genus known to contain lichen pathogens, most notably <em>A. arachnoidea</em>. By sequencing a combination of genetic markers – nuc rDNA ITS1-5.8S-ITS2 (ITS), partial nuc 28S rDNA (28S), and partial translation elongation factor 1-α (<em>TEF1</em>) – paired with morphometric analyses, we reveal the involvement of at least three additional lineages of lichen-associated <em>Athelia</em> and describe one as a new species, <em>Athelia abscondita</em>. <em>A. abscondita</em> is morphologically distinguished from other <em>Athelia</em> species by its basidia and basidiospores, was found to frequently infect members of <em>Bryoria</em> sect. <em>Implexae</em>, and was occasionally on other foliose and fruticose species within Parmeliaceae.</span></p>
Systemic infection of Bryoria (Lecanoromycetes, Ascomycota) by Athelia (Agaricomycetes, Basidiomycota) in western North America
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FIGURE 4. Bryoria wuii.A in Four new species of Bryoria (Lichenized Ascomycota: Parmeliaceae) from the Hengduan Mountains, China
FIGURE 4. Bryoria wuii.A. Habit, scale = 1 cm; B. Irregularly branched thallus, scale = 2 mm; C. Concave and dark brown pseudocyphellae, scale = 1 mm, photo by Li Song Wang.
FIGURE 3. Bryoria fruticulosa. A in Four new species of Bryoria (Lichenized Ascomycota: Parmeliaceae) from the Hengduan Mountains, China
FIGURE 3. Bryoria fruticulosa. A. Habit; B. Broom-like third-order branches; C. White soralia; D. Ciliate apothecia. scale = 1 cm in A, scale = 1 mm in B–D, photo by Li Song Wang.
FIGURE 2. Bryoria barbata. A in Four new species of Bryoria (Lichenized Ascomycota: Parmeliaceae) from the Hengduan Mountains, China
FIGURE 2. Bryoria barbata. A. Habit; B. Grayish white and prominent pseudocyphellae; C. Sessile apothecia. All the scale = 1 mm, photo by Li Song Wang.
FIGURE 5. Bryoria yunnana A in Four new species of Bryoria (Lichenized Ascomycota: Parmeliaceae) from the Hengduan Mountains, China
FIGURE 5. Bryoria yunnana A. Habit, scale = 5 mm; B. Oblong-ellipsoid and convex pseudocyphellae, scale = 1 mm; C. Sessile apothecia, scale = 1 mm, photo by Li Song Wang.
FIGURE 1 in Four new species of Bryoria (Lichenized Ascomycota: Parmeliaceae) from the Hengduan Mountains, China
FIGURE 1. Phylogenetic relationships of selected Bryoria species inferred from ITS sequences with Gowardia arctica as outgroup. Four new species are shown in bold. Bootstrap support values (MLBS) and posterior probabilities (PP) are shown above or below the branches.
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