Rhizoctonia setariae
Authors/Creators
- 1. Division of Ecology and Evolution, Research School of Biology, Australian National University, Canberra ACT, 2600, Australia
- 2. Royal Botanic Gardens Victoria, Birdwood Avenue, South Yarra VIC, 3141, Australia
Description
Rhizoctonia setariae (Sawada) R.P. O’Donnell, C.C. Linde & T.W. May, comb. nov. MB 852080.
Basionym: Hypochnus setariae Sawada, Bot. Mag. (Tokyo) 26: 191. 1912.
Synonyms: Ceratobasidium setariae (Sawada) Oniki et al., Trans. Mycol. Soc. Japan 27 (2): 153. 1986.
Sclerotium oryzae-sativae Sawada, Trans. Nat. Hist. Soc. Formosa 9: 138. 1919.
Rhizoctonia oryzae-sativae (Sawada) Mordue, CMI Descriptions of Pathogenic Fungi and Bacteria 41: no. 409. 1974.
Ceratorhiza oryzae-sativae (Sawada) R.T. Moore, Antonie van Leeuwenhoek 55 (4): 394. 1989.
Ceratobasidium oryzae-sativae P.S. Gunnell & R.K. Webster, Mycologia 79 (5): 731. 1987.
Type citation: ‘ TYPE: No type was designated and no specimens were available for study. Sawada’s illustration of H. setariae (1912) is therefore selected as a lectotype.’, as designated by Gunnell & Webster (1987). The illustration is on p. (192) and shows basidia, spores, hyphae, and a section of a sclerotium. Note that the volume of Botanical Magazine, Tokyo where the protologue appears, volume 26, has two series of pages, one for text in English and one for text in Japanese, with the latter pages given in parentheses.
ITS barcode: AF354087 (R).
UNITE 1.5 % SH: n/a.
Alternative marker: LSU = AF354087 (sequence contains both ITS and LSU regions - R).
Notes: A type specimen for H. setariae is not extant, and the original illustration by Sawada (1912) was designated as a lectotype by Gunnell & Webster (1987). Roberts (1999) considered Cb. setariae as synonymous with R. oryzae-sativae, and R. fumigata. Roberts’ treatment also noted that Cb. setariae and Cr. oryzae-sativae were considered to represent Rhizoctonia AG-Bb, while R. fumigata represented Rhizoctonia AG-Ba. Rhizoctonia AG-Ba and AG-Bb have previously been shown to be genetically distinct entities (Gónzalez et al. 2001), and this distinction is supported by the results of this study (Fig. 1). Rhizoctonia AG-Ba (R. fumigata) and Rhizoctonia AG-Bb (Cb. setariae / Cr. oryzae-sativae) should therefore be retained as separate taxa. As the epithet setariae precedes the publication of the epithet oryzae-sativae (1912 vs 1919), the epithet setariae takes priority. Sequences identified as Ceratobasidium AG-Bb by Gónzalez et al. 2001 are selected here as representative sequences.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Sawada
- Kingdom
- Fungi
- Phylum
- Basidiomycota
- Order
- Cantharellales
- Family
- Ceratobasidiaceae
- Genus
- Rhizoctonia
- Species
- setariae
- Taxon rank
- species
References
- Gunnell PS, Webster RK (1987). Ceratobasidium oryzae-sativae sp. nov., the teleomorph of Rhizoctonia oryzae-sativae and Ceratobasidium setariae comb. nov., the probable teleomorph of Rhizoctonia fumigata comb. nov. Mycologia 79: 731-736. https://doi.org/10.2307/3807825
- Sawada K (1912). Hypochnus on some cultivated plants in Formosa. The Botanical Magazine, Tokyo (Shokubutsugaku zasshi) 26: 177-193.
- Roberts P (1999). Rhizoctonia-forming Fungi: A Taxonomic Guide. Kew Publishing, United Kingdom.
- Gonzalez D, Carling DE, Kuninaga S, et al. (2001). Ribosomal DNA Systematics of Ceratobasidium and Thanatephorus with Rhizoctonia anamorphs. Mycologia 93: 1138-1150. https://doi.org/10.2307/3761674