Published March 5, 2024 | Version v1
Taxonomic treatment Open

Rhizoctonia myrtisiae

  • 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 myrtisiae (Y.P. Tan) R.P. O’Donnell, C.C. Linde & T.W. May, comb. nov. MB 856694.

Basionym: Ceratobasidium myrtisiae Y.P. Tan, Index of Australian Fungi 41: 3. 2024.

Type citation: ‘ Australia, Queensland, Moura, from root rot of Arachis hypogaea (Fabaceae), Feb. 2004, J.R. Tatnell (holotype BRIP 44989 a permanently preserved in a metabolically inactive state).’

ITS barcode: PQ061106 (T).

UNITE 1.5 % SH: n/a.

Notes: A BLAST search of the type accession of R. myrtisiae found that it shares more than 99 % identity with a number of accessions identified as Rhizoctonia / Ceratobasidium AG-Fa in studies such as Gónzalez et al. (2016: GenBank DQ279014 at 99.20 % identity), Sharon et al. (2008: e.g. GenBank AB219144 at 99.52 %) and Muzhinji & Lekota (2024: e.g. GenBank JX913819 at 99.08 %). Thus, R. myrtisiae should be considered the epithet associated with this AG group. See also comments under R. sapphoae.

Notes

Published as part of O'Donnell, R. P., Linde, C. C. & May, T. W., 2025, Rise up, Rhizoctonia: moving to one fungus, one name in the Ceratobasidiaceae (Agaricomycetes, Cantharellales), pp. 285-325 in Persoonia 54 (1) on page 308, DOI: 10.3114/persoonia.2025.54.09, http://zenodo.org/record/17127619

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Linked records

Additional details

Biodiversity

Collection code
BRIP
Material sample ID
BRIP 44989
Scientific name authorship
Y. P. Tan
Kingdom
Fungi
Phylum
Basidiomycota
Order
Cantharellales
Family
Ceratobasidiaceae
Genus
Rhizoctonia
Species
myrtisiae
Taxon rank
species
Type status
holotype

References

  • Gonzalez D, Rodriguez-Carres M, Boekhout T, et al. (2016). Phylogenetic relationships of Rhizoctonia fungi within the Cantharellales. Fungal Biology 120: 603-619. https://doi.org/10.1016/j.funbio.2016.01.012
  • Sharon M, Sneh B, Kuninaga S, et al. (2008). Classification of Rhizoctonia spp. using rDNA-ITS sequence analysis supports the genetic basis of the classical anastomosis grouping. Mycoscience 49: 93-114. https://doi.org/10.1007/S10267-007-0394-0
  • Muzhinji N, Lekota M (2024). Binucleate Rhizoctonia on potato: Geographic distribution, identification, taxonomy, genomics, host range and disease management. Journal of Phytopathology 172: e 13364. https://doi.org/10.1111/jph.13364