Commelinaceomyces, gen. nov., for four clavicipitaceous species misplaced in Ustilago that infect Commelinaceae
Article
Article Title | Commelinaceomyces, gen. nov., for four clavicipitaceous species misplaced in Ustilago that infect Commelinaceae |
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ERA Journal ID | 2502 |
Article Category | Article |
Authors | Tanaka, Eiji (Author), Shrestha, Bhushan (Author) and Shivas, Roger G. (Author) |
Journal Title | Mycologia |
Journal Citation | 112 (3), pp. 649-660 |
Number of Pages | 12 |
Year | 2020 |
Place of Publication | United States |
ISSN | 0027-5514 |
1557-2536 | |
Digital Object Identifier (DOI) | https://doi.org/10.1080/00275514.2020.1745524 |
Web Address (URL) | https://www.tandfonline.com/doi/full/10.1080/00275514.2020.1745524 |
Abstract | A fungus causing false smut in the flowers of Murdannia keisak (Commelinaceae, Commelinales, Monocots) in Japan was morphologically identical to Ustilago aneilematis. The fungus infected ovaries of most flowers of host plants. Infected flowers were filled with yellow to orange thickwalled conidia that became olivaceous green at maturity. However, multilocus phylogenetic analysis of DNA sequences (18S, 28S, translation elongation factor 1α [TEF], the largest [RPB1] and the second largest [RPB2] subunit of RNA polymerase II) showed that the fungus belonged to the tribe Ustilaginoideae (Clavicipitaceae, Hypocreales, Ascomycota). Microscopic examination showed that the fungus developed conidia at the apex of conidiogenous cells, in contrast to other species in the Ustilaginoideae that develop conidia pleurogenously. A new genus, Commelinaceomyces, is formally proposed in the Ustilaginoideae to accommodate this fungus. Four species previously misplaced in Ustilago (Ustilaginales, Basidiomycota) are transferred to Commelinaceomyces, including the type of the genus, C. aneilematis, onMurdannia keisak. This is the first report of a clavicipitaceous species infecting host plants in the Commelinaceae. |
Keywords | Clavicipitaceae; host jump; Metarhizium; Murdannia keisak; Ustilaginoidea usambarensis; Ustilago aneilematis; 5 new taxa |
ANZSRC Field of Research 2020 | 310705. Mycology |
310411. Plant and fungus systematics and taxonomy | |
Byline Affiliations | Ishikawa Prefectural University, Japan |
Catholic Kwandong University, Korea | |
Centre for Crop Health | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q5v5v/commelinaceomyces-gen-nov-for-four-clavicipitaceous-species-misplaced-in-ustilago-that-infect-commelinaceae
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