Backusella is the sole genus of zygote fungi in the family Backusellaceae, which is classified in the order Mucorales.[1] Members of this genus have been often isolated from plant litter, from locations around the world.[2]

Sporangium (i.e. a cluster of sporangiospores surrounding a columella (obscured in image by sporangiospores) subtended by a hypha) viewed with bright-field light microscope
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Mucoromycota
Class: Mucoromycetes
Order: Mucorales
Family: Backusellaceae
K. Voigt & P.M. Kirk
Genus: Backusella
Hesselt. & J.J. Ellis
Type species
Backusella circina
J.J. Ellis & Hesselt.

See text



C. W. Hesseltine and J. J. Ellis recognised the uniqueness of a new species, B. circina, warranted its classification in a new genus; in 1969 they established Backusella, named in honour of Professor M. P. Backus. Since then, several species previously placed in the archetypal mucoralean genus Mucor were reassessed, found to be close relatives of B. circina, and combined into Backusella as additional Backusella species, while other species were discovered and classified outright as Backusella.[1] K. Voigt & P.M. Kirk established the family Backusellaceae to include Backusella in 2012, as they likewise recognised the uniqueness of the genus and the need to classify it within a distinct family.

Accepted species


The genus consists of the following 27 accepted species:[3][2][4][5][6][7]

Synonym: Mucor pseudolamprosporus H. Nagan. & Hirahara
Synonym: B. johorensis L.S. Loh et al.
Basionym: M. dispersus Hagem
Basionym: M. recurvus var. indicus [as 'indica' ] Baijal & B.S. Mehrotra
Basionym: M. lamprosporus Lendn.
Synonym: B. circina var. lamprospora (Lendn.) R.Y. Zheng
Basionym: M. oblongiellipticus H. Nagan. et al. ex Pidopl. & Milko
Basionym: M. oblongisporus Naumov
Basionym: M. recurvus E.E. Butler
Synonym: M. recurvus var. aspinosus L.S. Loh
Synonym: M. aromaticus Povah
Basionym: M. tuberculisporus Schipper 1978
Synonym: M. heterosporus sensu Baijal & Mehrotra; fide Schipper
Basionym: M. variabilis A.K. Sarbhoy
Synonym: M. grandis Schipper & Samson
Synonym: B. grandis (Schipper & Samson) G. Walther & de Hoog

Former species


The following species was at one point considered by some authorities to be in the genus Backusella, although this is no longer so:[3]

  • Mucor ctenidius (Durrell & M. Fleming) Pidopl. & Milko ex Benny & R.K. Benj.
Basionym: Thamnidium ctenidium Durrell & M. Fleming
Synonym: B. ctenidia (Durrell & M. Fleming) Pidopl. & Milko ex Benny & R.K. Benj.

See also



  1. ^ a b "Backusella". Species Fungorum. Retrieved 13 November 2018.
  2. ^ a b Urquhart, A.S.; Douch, J.K.; Heafield, T.A.; Buddie, A.G.; Idnurm, A. (2020). "Diversity of Backusella (Mucoromycotina) in south-eastern Australia revealed through polyphasic taxonomy". Persoonia - Molecular Phylogeny and Evolution of Fungi. doi:10.3767/persoonia.2021.46.01. ISSN 0031-5850.
  3. ^ a b "Backusella species". Species Fungorum. Retrieved 13 November 2018.
  4. ^ D.X. Lima; K. Voigt; C.A.F. De Souza; R.J.V. De Oliveira; C.M. Souza-Motta; A.L.C.M. De A. Santiago (2016). "Description of Backusella constricta sp. nov. (Mucorales, ex Zygomycota) from the Brazilian Atlantic Rainforest, including a key to species of Backusella". Phytotaxa. 289: 59–68. doi:10.11646/phytotaxa.289.1.4.
  5. ^ J.I. de Souza; A.V. Marano; C.L.A. Pires-Zottarelli; F.S. Chambergo; R. Harakava (2014). "A new species of Backusella (Mucorales) from a Cerrado reserve in Southeast Brazil". Mycological Progress. 13 (4): 975–980. doi:10.1007/s11557-014-0981-3. S2CID 18374496.
  6. ^ D.N. Wanasinghe; et al. (2018). "Fungal diversity notes 709–839: taxonomic and phylogenetic contribution to fungal taxa with an emphasis on fungi on Rosaceae". Fungal Diversity. 89: 1–236. doi:10.1007/s13225-018-0395-7. S2CID 3847846.
  7. ^ Nguyen, Thuong T. T.; Voigt, Kerstin; Santiago, André Luiz Cabral Monteiro de Azevedo; Kirk, Paul M.; Lee, Hyang-Burm (2021). "Discovery of Novel Backusella (Backusellaceae, Mucorales) Isolated from Invertebrates and Toads in Cheongyang, Korea". Journal of Fungi. 7 (7): 513. doi:10.3390/jof7070513. PMC 8303511. PMID 34199055.

Further reading