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KMID : 0364820230590020077
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Korean Journal of Microbiology
2023 Volume.59 No. 2 p.77 ~ p.90
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Arthonia apatetica (Arthoniales, Arthoniaceae) new to northeastern Asia
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Lee Beeyoung-Gun
Hur Jae-Seoun
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Abstract
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Arthonia apatetica (A. Massal.) Th. Fr. is described as a lichenforming fungus from South Korea, new to northeastern Asia. The minute and negligible microorganism is characterized by small, black apothecia with 1-septate ascospores, absence of crystals, pale brown hypothecium, periclinally arranged paraphysoids at epihymenium, and chlorococcoid photobiont among corticolous species. Molecular analyses employing the mitochondrial small subunit (mtSSU), the nuclear large subunit ribosomal RNA (LSU), and the RNA polymerase subunit II (RPB2) sequences strongly support the collected Korean specimens corresponding to A. apatetica in the Bryostigma clade of Arthonia. The newly produced genes are the first data of A. apatetica in Asia. An updated key is provided to assist in the identification of all 54 taxa of Arthonia in northeastern Asia.
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KEYWORD
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Arthoniaceae, biodiversity, molecular biology, phylogeny, taxonomy
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