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KMID : 1160220160440020112
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Mycobiology
2016 Volume.44 No. 2 p.112 ~ p.116
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Kretzschmaria quercicola sp. nov., an Undescribed Fungus from Living Oak in Mt. Daeryong, Korea
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Yun Ji-Ho
Jo Jong-Won
Lee Jin-Heung
Han Sang-Kuk
Kim Dae-Ho
Lee Jong-Kyu
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Abstract
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We encountered an unfamiliar ascomycete fruiting body, fitting characteristics of the genus Kretzschmaria, which features in a stipitate ascigerous stroma with carbonaceous interior and disintegrating perithecia. In this study, we report and characterize a new species of the decaying fungus. Compared to other species, one of the notable features of this specimen (TPML150908-046) is its stromatal size (up to 15 cm). Although TPML150908-046 is morphologically similar to K. milleri and K. sandvicensis, it differs sharply from both species in apical ring size (TPML150908-046, 6.5~10.5 μm; K. milleri, 11~16 μm) and ascospore width (TPML150908-046, 10.5~17 μm; K. sandvicensis, 8.5~11.5 μm). Phylogenetic trees based on β-tubulin, ITS, and RPB2 sequences showed that our collection clustered with K. sandvicensis, with the respective similarities for these sequences being 95.6%, 91.3%, and 97.7%, signifying it as another species. With these results, we report it as a new species, which we call Kretzschmaria quercicola sp. nov.
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KEYWORD
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Ascomycota, Kretzschmaria, Morphology, Phylogeny, Taxonomy
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